{"name":"BuildRules Ontario Building Permit Index","canonical_url":"https://buildrules.ca/permit-index","generated_at":"2026-10-07T08:23:49.989Z","latest_verified":"2026-10-01","coverage":{"cities":16,"project_types":28,"city_project_answers":138,"official_source_urls":98},"methodology_url":"https://buildrules.ca/methodology","source_directory_url":"https://buildrules.ca/sources","records":[{"city":"Barrie","city_slug":"barrie","province":"Ontario","project":"Deck","project_slug":"deck-permit","question":"What permit route applies to a residential deck in Barrie?","guidance_status":"Depends on project conditions","direct_answer":"Barrie provides a dedicated Residential Deck building permit application type for attached or free-standing residential platforms and balconies.","last_verified":"2026-10-01","official_source_count":1,"official_source_urls":["https://eservices.barrie.ca/APLI/customization/common/ApplicationList.aspx"],"buildrules_url":"https://buildrules.ca/barrie/deck-permit"},{"city":"Barrie","city_slug":"barrie","province":"Ontario","project":"Garage / accessory building","project_slug":"garage-permit","question":"Do you need a permit for a detached garage in Barrie?","guidance_status":"Depends on project conditions","direct_answer":"Barrie’s Residential Accessory Building application covers detached covered structures greater than 10 m², including garages, sheds and carports.","last_verified":"2026-10-01","official_source_count":1,"official_source_urls":["https://eservices.barrie.ca/APLI/customization/common/ApplicationList.aspx"],"buildrules_url":"https://buildrules.ca/barrie/garage-permit"},{"city":"Brampton","city_slug":"brampton","province":"Ontario","project":"Additional residential unit / second unit","project_slug":"secondary-suite-permit","question":"Do you need a permit and registration for a second unit in Brampton?","guidance_status":"Depends on project conditions","direct_answer":"Brampton requires the applicable zoning compliance, a building permit process and City registration for second and third units.","last_verified":"2026-10-01","official_source_count":2,"official_source_urls":["https://www.brampton.ca/EN/residents/Building-Permits/second-dwelling","https://www.brampton.ca/EN/residents/Building-Permits/second-dwelling/Pages/Two-Unit-Process.aspx"],"buildrules_url":"https://buildrules.ca/brampton/secondary-suite-permit"},{"city":"Brampton","city_slug":"brampton","province":"Ontario","project":"Basement entrance / walkout","project_slug":"basement-entrance-permit","question":"Do you need a permit for a basement entrance in Brampton?","guidance_status":"Depends on project conditions","direct_answer":"Yes. Brampton publishes a dedicated below-grade entrance permit package with structural, drainage and foundation requirements.","last_verified":"2026-10-01","official_source_count":1,"official_source_urls":["https://www1.brampton.ca/EN/residents/Building-Permits/Documents/Homeowners/BG%20Entrance%20Package.pdf"],"buildrules_url":"https://buildrules.ca/brampton/basement-entrance-permit"},{"city":"Brampton","city_slug":"brampton","province":"Ontario","project":"Basement renovation","project_slug":"basement-renovation-permit","question":"Do you need a permit to finish a basement in Brampton?","guidance_status":"Depends on project conditions","direct_answer":"Brampton provides a dedicated basement-finish permit package under its Standard Permit Application Service.","last_verified":"2026-10-01","official_source_count":2,"official_source_urls":["https://www.brampton.ca/en/residents/Building-Permits/homeowners","https://www1.brampton.ca/EN/residents/Building-Permits/Documents/homeowners/basement%20finish%20package.pdf"],"buildrules_url":"https://buildrules.ca/brampton/basement-renovation-permit"},{"city":"Brampton","city_slug":"brampton","province":"Ontario","project":"Deck","project_slug":"deck-permit","question":"Do you need a permit for a deck in Brampton?","guidance_status":"Depends on project conditions","direct_answer":"A permit is required when the deck is attached or anchored to the house, or when it is 0.6 metres or more above the ground.","last_verified":"2026-10-01","official_source_count":1,"official_source_urls":["https://www.brampton.ca/EN/residents/Building-Permits/Zoning/pages/decksandporchesandpatios.aspx"],"buildrules_url":"https://buildrules.ca/brampton/deck-permit"},{"city":"Brampton","city_slug":"brampton","province":"Ontario","project":"Home addition","project_slug":"home-addition-permit","question":"What is the permit process for a home addition in Brampton?","guidance_status":"Depends on project conditions","direct_answer":"Brampton provides residential addition permit packages through its Standard Permit Application Service, with zoning and other approvals checked as part of the process.","last_verified":"2026-10-01","official_source_count":1,"official_source_urls":["https://www.brampton.ca/en/residents/Building-Permits/homeowners"],"buildrules_url":"https://buildrules.ca/brampton/home-addition-permit"},{"city":"Brampton","city_slug":"brampton","province":"Ontario","project":"Plumbing","project_slug":"plumbing-permit","question":"Do you need a permit for new plumbing fixtures in Brampton?","guidance_status":"Depends on project conditions","direct_answer":"Yes. Brampton has a residential permit package for new plumbing fixtures and finishing roughed-in plumbing.","last_verified":"2026-10-01","official_source_count":2,"official_source_urls":["https://www.brampton.ca/en/residents/Building-Permits/homeowners","https://www.brampton.ca/EN/residents/Building-Permits/Documents/Homeowners/Plumbing%20Package.pdf"],"buildrules_url":"https://buildrules.ca/brampton/plumbing-permit"},{"city":"Brampton","city_slug":"brampton","province":"Ontario","project":"Shed / accessory structure","project_slug":"shed-permit","question":"Do you need a permit for a shed in Brampton?","guidance_status":"Depends on project conditions","direct_answer":"Brampton sets zoning limits for shed size, number of accessory structures and property-line setbacks. The building-permit requirement still depends on the exact structure and proposed use.","last_verified":"2026-10-01","official_source_count":1,"official_source_urls":["https://www.brampton.ca/EN/residents/Building-Permits/Zoning/pages/sheds-and-accessory-structures.aspx"],"buildrules_url":"https://buildrules.ca/brampton/shed-permit"},{"city":"Brampton","city_slug":"brampton","province":"Ontario","project":"Windows / doors","project_slug":"window-door-permit","question":"Do you need a permit for a new or enlarged window or door in Brampton?","guidance_status":"Depends on project conditions","direct_answer":"Yes. Brampton lists new or enlarged window and door openings among its residential building permit application packages.","last_verified":"2026-10-01","official_source_count":1,"official_source_urls":["https://www.brampton.ca/en/residents/Building-Permits/homeowners"],"buildrules_url":"https://buildrules.ca/brampton/window-door-permit"},{"city":"Burlington","city_slug":"burlington","province":"Ontario","project":"Additional residential unit","project_slug":"secondary-suite-permit","question":"What do you need for an additional residential unit in Burlington?","guidance_status":"Depends on project conditions","direct_answer":"Burlington requires a building permit for ARU construction and requires the application to meet zoning and performance standards for the property.","last_verified":"2026-10-01","official_source_count":2,"official_source_urls":["https://www.burlington.ca/en/building-and-renovating/additional-residential-units.aspx","https://www.burlington.ca/en/building-and-renovating/steps-to-build-an-additional-residential-unit.aspx"],"buildrules_url":"https://buildrules.ca/burlington/secondary-suite-permit"},{"city":"Burlington","city_slug":"burlington","province":"Ontario","project":"Deck","project_slug":"deck-permit","question":"Do you need a permit for a deck in Burlington?","guidance_status":"Depends on project conditions","direct_answer":"Burlington requires a permit when a deck is attached, over 10 m², over 600 mm high, or covered by a roof.","last_verified":"2026-10-01","official_source_count":2,"official_source_urls":["https://www.burlington.ca/en/building-and-renovating/decks-porches-and-patios.aspx","https://www.burlington.ca/en/planning-and-development/pre-building-approval-application.aspx"],"buildrules_url":"https://buildrules.ca/burlington/deck-permit"},{"city":"Burlington","city_slug":"burlington","province":"Ontario","project":"Garage / carport","project_slug":"garage-permit","question":"Do you need a permit for a detached garage or carport in Burlington?","guidance_status":"Depends on project conditions","direct_answer":"A qualifying detached garage or carport for a house can be permit-exempt when it is one storey, under 15 m² and has no plumbing.","last_verified":"2026-10-01","official_source_count":3,"official_source_urls":["https://www.burlington.ca/en/building-and-renovating/do-i-need-a-building-permit.aspx","https://www.burlington.ca/en/building-and-renovating/sheds-and-accessory-structures.aspx","https://www.burlington.ca/en/planning-and-development/pre-building-approval-application.aspx"],"buildrules_url":"https://buildrules.ca/burlington/garage-permit"},{"city":"Burlington","city_slug":"burlington","province":"Ontario","project":"Home addition","project_slug":"home-addition-permit","question":"Do you need a permit for a home addition in Burlington?","guidance_status":"Depends on project conditions","direct_answer":"Yes. Burlington states that a building permit is required before construction of an addition to a house.","last_verified":"2026-10-01","official_source_count":1,"official_source_urls":["https://www.burlington.ca/en/building-and-renovating/renovations-and-additions.aspx"],"buildrules_url":"https://buildrules.ca/burlington/home-addition-permit"},{"city":"Burlington","city_slug":"burlington","province":"Ontario","project":"Retaining wall","project_slug":"retaining-wall-permit","question":"Do you need a permit for a retaining wall in Burlington?","guidance_status":"Depends on project conditions","direct_answer":"Burlington lists retaining walls equal to or less than 1 metre high among projects that do not require a building permit.","last_verified":"2026-10-01","official_source_count":1,"official_source_urls":["https://www.burlington.ca/en/building-and-renovating/do-i-need-a-building-permit.aspx"],"buildrules_url":"https://buildrules.ca/burlington/retaining-wall-permit"},{"city":"Burlington","city_slug":"burlington","province":"Ontario","project":"Shed / accessory structure","project_slug":"shed-permit","question":"Do you need a permit for a shed in Burlington?","guidance_status":"Depends on project conditions","direct_answer":"A permit is required when the accessory building is bigger than 15 m², taller than one storey, attached to another structure or contains plumbing.","last_verified":"2026-10-01","official_source_count":2,"official_source_urls":["https://www.burlington.ca/en/building-and-renovating/sheds-and-accessory-structures.aspx","https://www.burlington.ca/en/planning-and-development/pre-building-approval-application.aspx"],"buildrules_url":"https://buildrules.ca/burlington/shed-permit"},{"city":"Burlington","city_slug":"burlington","province":"Ontario","project":"Solar panels / collectors","project_slug":"solar-panel-permit","question":"Do you need a building permit for a solar collector in Burlington?","guidance_status":"Depends on project conditions","direct_answer":"Burlington lists solar collectors not mounted to buildings with a face area under 5 m² as permit-exempt; other solar installations need project-specific permit review.","last_verified":"2026-10-01","official_source_count":1,"official_source_urls":["https://www.burlington.ca/en/building-and-renovating/do-i-need-a-building-permit.aspx"],"buildrules_url":"https://buildrules.ca/burlington/solar-panel-permit"},{"city":"Cambridge","city_slug":"cambridge","province":"Ontario","project":"Garage / carport","project_slug":"garage-permit","question":"Do you need a permit for a garage or carport in Cambridge?","guidance_status":"Depends on project conditions","direct_answer":"Cambridge lists attached and detached garages and carports among typical projects requiring a building permit.","last_verified":"2026-10-01","official_source_count":1,"official_source_urls":["https://www.cambridge.ca/business-building-development/building-planning/building-permits/"],"buildrules_url":"https://buildrules.ca/cambridge/garage-permit"},{"city":"Cambridge","city_slug":"cambridge","province":"Ontario","project":"Retaining wall","project_slug":"retaining-wall-permit","question":"Do you need a permit for a retaining wall in Cambridge?","guidance_status":"Depends on project conditions","direct_answer":"Cambridge lists retaining walls greater than 1 metre as permit-required depending on location.","last_verified":"2026-10-01","official_source_count":1,"official_source_urls":["https://www.cambridge.ca/business-building-development/building-planning/building-permits/"],"buildrules_url":"https://buildrules.ca/cambridge/retaining-wall-permit"},{"city":"Cambridge","city_slug":"cambridge","province":"Ontario","project":"Windows / doors","project_slug":"window-door-permit","question":"Do you need a permit for window or door changes in Cambridge?","guidance_status":"Depends on project conditions","direct_answer":"Cambridge lists new or altered windows and doors, such as increasing an opening size, among typical permit-required projects.","last_verified":"2026-10-01","official_source_count":1,"official_source_urls":["https://www.cambridge.ca/business-building-development/building-planning/building-permits/"],"buildrules_url":"https://buildrules.ca/cambridge/window-door-permit"},{"city":"Hamilton","city_slug":"hamilton","province":"Ontario","project":"Additional dwelling unit","project_slug":"secondary-suite-permit","question":"What permits and checks apply to an ADU or basement apartment in Hamilton?","guidance_status":"Depends on project conditions","direct_answer":"Hamilton has a dedicated ADU team for building permits in existing single-family dwellings, including up to two internal units and one detached unit.","last_verified":"2026-10-01","official_source_count":2,"official_source_urls":["https://www.hamilton.ca/build-invest-grow/construction-renovation/residential-building-renovation/building-permit","https://www.hamilton.ca/build-invest-grow/construction-renovation/residential-building-renovation/additional-dwelling-units"],"buildrules_url":"https://buildrules.ca/hamilton/secondary-suite-permit"},{"city":"Hamilton","city_slug":"hamilton","province":"Ontario","project":"Basement entrance / walkout","project_slug":"basement-entrance-permit","question":"Do you need a permit for a basement walkout in Hamilton?","guidance_status":"Depends on project conditions","direct_answer":"Yes. Hamilton explicitly lists a walkout basement among interior projects that require a building permit.","last_verified":"2026-10-01","official_source_count":2,"official_source_urls":["https://www.hamilton.ca/build-invest-grow/construction-renovation/residential-building-renovation/building-permit","https://www.hamilton.ca/build-invest-grow/construction-renovation/residential-building-renovation/building-permit-review"],"buildrules_url":"https://buildrules.ca/hamilton/basement-entrance-permit"},{"city":"Hamilton","city_slug":"hamilton","province":"Ontario","project":"Basement renovation","project_slug":"basement-renovation-permit","question":"Do you need a permit to renovate a basement in Hamilton?","guidance_status":"Depends on project conditions","direct_answer":"Hamilton lists finishing or partially finishing a basement, creating new rooms and many structural or opening changes among permit-required interior work.","last_verified":"2026-10-01","official_source_count":1,"official_source_urls":["https://www.hamilton.ca/build-invest-grow/construction-renovation/residential-building-renovation/building-permit"],"buildrules_url":"https://buildrules.ca/hamilton/basement-renovation-permit"},{"city":"Hamilton","city_slug":"hamilton","province":"Ontario","project":"Basement underpinning","project_slug":"underpinning-permit","question":"Do you need a permit for underpinning in Hamilton?","guidance_status":"Depends on project conditions","direct_answer":"Yes. Hamilton lists raising or lowering a house through underpinning to provide a full basement as permit-required work.","last_verified":"2026-10-01","official_source_count":3,"official_source_urls":["https://www.hamilton.ca/build-invest-grow/construction-renovation/residential-building-renovation/building-permit","https://www.hamilton.ca/build-invest-grow/construction-renovation/residential-building-renovation/building-permit-review","https://www.hamilton.ca/build-invest-grow/construction-renovation/residential-building-renovation/building-permit-fees"],"buildrules_url":"https://buildrules.ca/hamilton/underpinning-permit"},{"city":"Hamilton","city_slug":"hamilton","province":"Ontario","project":"Deck","project_slug":"deck-permit","question":"Do you need a permit for a deck in Hamilton?","guidance_status":"Depends on project conditions","direct_answer":"Hamilton requires permits for attached decks and several detached-deck situations based on area, height, roof coverage and access.","last_verified":"2026-10-01","official_source_count":1,"official_source_urls":["https://www.hamilton.ca/build-invest-grow/construction-renovation/residential-building-renovation/porches-and-decks"],"buildrules_url":"https://buildrules.ca/hamilton/deck-permit"},{"city":"Hamilton","city_slug":"hamilton","province":"Ontario","project":"Garage / carport","project_slug":"garage-permit","question":"Do you need a permit for a garage or carport in Hamilton?","guidance_status":"Depends on project conditions","direct_answer":"A qualifying detached garage or carport accessory to a house can be permit-exempt when it is no more than 15 m², one storey and has no plumbing.","last_verified":"2026-10-01","official_source_count":1,"official_source_urls":["https://www.hamilton.ca/build-invest-grow/construction-renovation/residential-building-renovation/building-permit"],"buildrules_url":"https://buildrules.ca/hamilton/garage-permit"},{"city":"Hamilton","city_slug":"hamilton","province":"Ontario","project":"Home addition","project_slug":"home-addition-permit","question":"Do you need a permit for a home addition in Hamilton?","guidance_status":"Depends on project conditions","direct_answer":"Yes. Hamilton lists additions, including enclosing an existing porch, among projects that require a building permit.","last_verified":"2026-10-01","official_source_count":1,"official_source_urls":["https://www.hamilton.ca/build-invest-grow/construction-renovation/residential-building-renovation/building-permit"],"buildrules_url":"https://buildrules.ca/hamilton/home-addition-permit"},{"city":"Hamilton","city_slug":"hamilton","province":"Ontario","project":"Plumbing","project_slug":"plumbing-permit","question":"When do you need a plumbing permit in Hamilton?","guidance_status":"Depends on project conditions","direct_answer":"Hamilton requires a building permit for plumbing work inside buildings, and plumbing/drainage systems are reviewed under the Building Code.","last_verified":"2026-10-01","official_source_count":3,"official_source_urls":["https://www.hamilton.ca/build-invest-grow/construction-renovation/residential-building-renovation/building-permit","https://www.hamilton.ca/build-invest-grow/construction-renovation/residential-building-renovation/building-permit-review","https://www.hamilton.ca/build-invest-grow/construction-renovation/residential-building-renovation/building-permit-fees"],"buildrules_url":"https://buildrules.ca/hamilton/plumbing-permit"},{"city":"Hamilton","city_slug":"hamilton","province":"Ontario","project":"Roof replacement","project_slug":"roof-replacement-permit","question":"Do you need a permit to replace a roof in Hamilton?","guidance_status":"Depends on project conditions","direct_answer":"Re-shingling with the same roofing material is permit-exempt; replacing roofing with a different material is listed as permit-required.","last_verified":"2026-10-01","official_source_count":1,"official_source_urls":["https://www.hamilton.ca/build-invest-grow/construction-renovation/residential-building-renovation/building-permit"],"buildrules_url":"https://buildrules.ca/hamilton/roof-replacement-permit"},{"city":"Hamilton","city_slug":"hamilton","province":"Ontario","project":"Shed / accessory structure","project_slug":"shed-permit","question":"Do you need a permit for a shed in Hamilton?","guidance_status":"Depends on project conditions","direct_answer":"For an accessory structure to a detached, semi-detached or row house, Hamilton lists a permit exemption when the detached structure is no more than 15 m², one storey and has no plumbing.","last_verified":"2026-10-01","official_source_count":1,"official_source_urls":["https://www.hamilton.ca/build-invest-grow/construction-renovation/residential-building-renovation/residential-accessory"],"buildrules_url":"https://buildrules.ca/hamilton/shed-permit"},{"city":"Hamilton","city_slug":"hamilton","province":"Ontario","project":"Solar panels","project_slug":"solar-panel-permit","question":"Do you need a building permit for solar panels in Hamilton?","guidance_status":"Depends on project conditions","direct_answer":"Yes. Hamilton lists solar panels among exterior projects that require a building permit.","last_verified":"2026-10-01","official_source_count":1,"official_source_urls":["https://www.hamilton.ca/build-invest-grow/construction-renovation/residential-building-renovation/building-permit"],"buildrules_url":"https://buildrules.ca/hamilton/solar-panel-permit"},{"city":"Hamilton","city_slug":"hamilton","province":"Ontario","project":"Windows / doors","project_slug":"window-door-permit","question":"Do you need a permit for window or door changes in Hamilton?","guidance_status":"Depends on project conditions","direct_answer":"Hamilton lists creating new window or door openings, increasing opening size and relocating openings as permit-required work.","last_verified":"2026-10-01","official_source_count":1,"official_source_urls":["https://www.hamilton.ca/build-invest-grow/construction-renovation/residential-building-renovation/building-permit"],"buildrules_url":"https://buildrules.ca/hamilton/window-door-permit"},{"city":"Kitchener","city_slug":"kitchener","province":"Ontario","project":"Basement renovation","project_slug":"basement-renovation-permit","question":"Do you need a permit to finish a basement in Kitchener?","guidance_status":"Depends on project conditions","direct_answer":"Yes. Kitchener states that partial and full basement finishing projects require a building permit.","last_verified":"2026-10-01","official_source_count":1,"official_source_urls":["https://www.kitchener.ca/building-and-renovating/residential-building-permits/"],"buildrules_url":"https://buildrules.ca/kitchener/basement-renovation-permit"},{"city":"Kitchener","city_slug":"kitchener","province":"Ontario","project":"Deck","project_slug":"deck-permit","question":"Do you need a deck permit in Kitchener?","guidance_status":"Depends on project conditions","direct_answer":"A deck or porch needs a building permit when it is 24 inches or more above ground at any point or will be covered by a permanent roof.","last_verified":"2026-10-01","official_source_count":1,"official_source_urls":["https://www.kitchener.ca/building-and-renovating/residential-building-permits/"],"buildrules_url":"https://buildrules.ca/kitchener/deck-permit"},{"city":"Kitchener","city_slug":"kitchener","province":"Ontario","project":"Duplex / granny flat","project_slug":"secondary-suite-permit","question":"Do you need a permit to add a duplex or granny flat in Kitchener?","guidance_status":"Depends on project conditions","direct_answer":"Yes. Kitchener requires a building permit to add a duplex, including projects described as in-law suites, accessory apartments or granny flats.","last_verified":"2026-10-01","official_source_count":1,"official_source_urls":["https://www.kitchener.ca/building-and-renovating/residential-building-permits/"],"buildrules_url":"https://buildrules.ca/kitchener/secondary-suite-permit"},{"city":"Kitchener","city_slug":"kitchener","province":"Ontario","project":"Shed","project_slug":"shed-permit","question":"Do you need a permit for a shed in Kitchener?","guidance_status":"Depends on project conditions","direct_answer":"A shed needs a permit when it is over 161 ft², more than one storey, attached to another structure, used for more than storage or contains plumbing.","last_verified":"2026-10-01","official_source_count":1,"official_source_urls":["https://www.kitchener.ca/building-and-renovating/residential-building-permits/"],"buildrules_url":"https://buildrules.ca/kitchener/shed-permit"},{"city":"London","city_slug":"london","province":"Ontario","project":"Additional residential unit","project_slug":"secondary-suite-permit","question":"Do you need a permit for an ARU or basement apartment in London, Ontario?","guidance_status":"Depends on project conditions","direct_answer":"A building permit is required for every new ARU, whether it is an interior/basement conversion, converted garage, addition or detached unit.","last_verified":"2026-10-01","official_source_count":1,"official_source_urls":["https://london.ca/living-london/building-renovating/additional-residential-units"],"buildrules_url":"https://buildrules.ca/london/secondary-suite-permit"},{"city":"London","city_slug":"london","province":"Ontario","project":"Basement renovation","project_slug":"basement-renovation-permit","question":"Do you need a permit to renovate a basement in London, Ontario?","guidance_status":"Depends on project conditions","direct_answer":"London requires permits for basement finishing that creates rooms or living space, basement apartments, excavation to increase headroom and below-grade entrances.","last_verified":"2026-10-01","official_source_count":1,"official_source_urls":["https://london.ca/living-london/building-renovating/building-permits/you-apply-building-permit"],"buildrules_url":"https://buildrules.ca/london/basement-renovation-permit"},{"city":"London","city_slug":"london","province":"Ontario","project":"Deck","project_slug":"deck-permit","question":"Do you need a permit for a deck in London, Ontario?","guidance_status":"Depends on project conditions","direct_answer":"A side or rear deck under 600 mm can be permit-exempt only when it is not attached to the house; an attached low deck still requires a permit.","last_verified":"2026-10-01","official_source_count":2,"official_source_urls":["https://london.ca/living-london/building-renovating/common-homeowner-projects","https://london.ca/living-london/building-renovating/building-permits/you-apply-building-permit"],"buildrules_url":"https://buildrules.ca/london/deck-permit"},{"city":"London","city_slug":"london","province":"Ontario","project":"Home addition","project_slug":"home-addition-permit","question":"Do you need a permit for a home addition in London, Ontario?","guidance_status":"Depends on project conditions","direct_answer":"Yes. London lists additions to existing buildings among projects that require a building permit.","last_verified":"2026-10-01","official_source_count":1,"official_source_urls":["https://london.ca/living-london/building-renovating/building-permits/you-apply-building-permit"],"buildrules_url":"https://buildrules.ca/london/home-addition-permit"},{"city":"London","city_slug":"london","province":"Ontario","project":"Shed","project_slug":"shed-permit","question":"Do you need a permit for a shed in London, Ontario?","guidance_status":"Depends on project conditions","direct_answer":"A shed can be permit-exempt when it is under 15 m², one storey, free-standing, storage-only and has no plumbing.","last_verified":"2026-10-01","official_source_count":1,"official_source_urls":["https://london.ca/living-london/building-renovating/building-permits/you-apply-building-permit"],"buildrules_url":"https://buildrules.ca/london/shed-permit"},{"city":"Markham","city_slug":"markham","province":"Ontario","project":"Basement renovation","project_slug":"basement-renovation-permit","question":"Do you need a permit for basement renovation work in Markham?","guidance_status":"Depends on project conditions","direct_answer":"Markham lists construction of separate basement rooms, full-basement alterations, structural changes and new plumbing among permit-required work.","last_verified":"2026-10-01","official_source_count":1,"official_source_urls":["https://www.markham.ca/economic-development-business/building-permits/building-permit-process"],"buildrules_url":"https://buildrules.ca/markham/basement-renovation-permit"},{"city":"Markham","city_slug":"markham","province":"Ontario","project":"Deck","project_slug":"deck-permit","question":"Do you need a permit for a deck in Markham?","guidance_status":"Depends on project conditions","direct_answer":"Markham lists raised decks more than 600 mm above grade as permit-required and lists low decks under 600 mm as permit-exempt.","last_verified":"2026-10-01","official_source_count":1,"official_source_urls":["https://www.markham.ca/economic-development-business/building-permits/building-permit-process"],"buildrules_url":"https://buildrules.ca/markham/deck-permit"},{"city":"Markham","city_slug":"markham","province":"Ontario","project":"Garage / carport","project_slug":"garage-permit","question":"Do you need a permit for a garage or carport in Markham?","guidance_status":"Depends on project conditions","direct_answer":"Yes. Markham states that detached and attached garages and carports are included in construction work requiring a building permit.","last_verified":"2026-10-01","official_source_count":3,"official_source_urls":["https://www.markham.ca/economic-development-business/building-permits/guide-building-permits","https://www.markham.ca/about-city-markham/city-hall/bylaw/decks-construction-permits","https://www.markham.ca/economic-development-business/building-permits/building-permit-process"],"buildrules_url":"https://buildrules.ca/markham/garage-permit"},{"city":"Markham","city_slug":"markham","province":"Ontario","project":"Home addition","project_slug":"home-addition-permit","question":"Do you need a permit for a home addition in Markham?","guidance_status":"Depends on project conditions","direct_answer":"Yes. Markham’s building guidance states that additions and most construction work require a building permit.","last_verified":"2026-10-01","official_source_count":2,"official_source_urls":["https://www.markham.ca/economic-development-business/building-permits/building-permit-process","https://www.markham.ca/economic-development-business/building-permits/guide-building-permits"],"buildrules_url":"https://buildrules.ca/markham/home-addition-permit"},{"city":"Markham","city_slug":"markham","province":"Ontario","project":"Retaining wall","project_slug":"retaining-wall-permit","question":"Do you need a permit for a retaining wall in Markham?","guidance_status":"Depends on project conditions","direct_answer":"Markham lists retaining walls less than one metre high among housing projects that do not require a building permit.","last_verified":"2026-10-01","official_source_count":1,"official_source_urls":["https://www.markham.ca/economic-development-business/building-permits/building-permit-process"],"buildrules_url":"https://buildrules.ca/markham/retaining-wall-permit"},{"city":"Markham","city_slug":"markham","province":"Ontario","project":"Roof replacement","project_slug":"roof-replacement-permit","question":"Do you need a permit to replace roofing or shingles in Markham?","guidance_status":"Depends on project conditions","direct_answer":"Markham lists replacing roofing or shingles among housing projects that do not require a building permit.","last_verified":"2026-10-01","official_source_count":1,"official_source_urls":["https://www.markham.ca/economic-development-business/building-permits/building-permit-process"],"buildrules_url":"https://buildrules.ca/markham/roof-replacement-permit"},{"city":"Markham","city_slug":"markham","province":"Ontario","project":"Secondary suite","project_slug":"secondary-suite-permit","question":"What do you need for a secondary suite in Markham?","guidance_status":"Depends on project conditions","direct_answer":"Markham provides a dedicated secondary-suite process covering eligibility, the building permit application and registration with Markham Fire and Emergency Services.","last_verified":"2026-10-01","official_source_count":1,"official_source_urls":["https://www.markham.ca/economic-development-business/building-permits/guide-building-permits"],"buildrules_url":"https://buildrules.ca/markham/secondary-suite-permit"},{"city":"Markham","city_slug":"markham","province":"Ontario","project":"Shed / accessory structure","project_slug":"shed-permit","question":"Do you need a permit for a shed in Markham?","guidance_status":"Depends on project conditions","direct_answer":"A detached single-storey accessory building without plumbing can be permit-exempt when it is less than 15 m².","last_verified":"2026-10-01","official_source_count":1,"official_source_urls":["https://www.markham.ca/economic-development-business/building-permits/building-permit-process"],"buildrules_url":"https://buildrules.ca/markham/shed-permit"},{"city":"Markham","city_slug":"markham","province":"Ontario","project":"Solar panels","project_slug":"solar-panel-permit","question":"Do you need a building permit for solar photovoltaic panels in Markham?","guidance_status":"Depends on project conditions","direct_answer":"Markham lists ground- or roof-mounted solar photovoltaic panels among housing projects that do not require a building permit.","last_verified":"2026-10-01","official_source_count":1,"official_source_urls":["https://www.markham.ca/economic-development-business/building-permits/building-permit-process"],"buildrules_url":"https://buildrules.ca/markham/solar-panel-permit"},{"city":"Mississauga","city_slug":"mississauga","province":"Ontario","project":"Additional residential unit / second unit","project_slug":"secondary-suite-permit","question":"What do you need to create a basement apartment or second unit in Mississauga?","guidance_status":"Depends on project conditions","direct_answer":"A new or converted second unit needs the applicable building permit work and must meet Building Code, Fire Code and zoning requirements; second units are also registered with the City.","last_verified":"2026-10-01","official_source_count":3,"official_source_urls":["https://www.mississauga.ca/services-and-programs/building-and-renovating/building-permits/when-a-building-permit-is-required/","https://www.mississauga.ca/services-and-programs/building-and-renovating/building-permits/drawings-and-documents-you-need-for-a-building-permit/additional-residential-unit-conversions/","https://www.mississauga.ca/services-and-programs/building-and-renovating/registering-a-second-unit/"],"buildrules_url":"https://buildrules.ca/mississauga/secondary-suite-permit"},{"city":"Mississauga","city_slug":"mississauga","province":"Ontario","project":"Basement entrance / walkout","project_slug":"basement-entrance-permit","question":"Do you need a permit for a basement entrance in Mississauga?","guidance_status":"Depends on project conditions","direct_answer":"Yes. Mississauga lists a below-grade entrance or basement walkout as permit-required work.","last_verified":"2026-10-01","official_source_count":2,"official_source_urls":["https://www.mississauga.ca/services-and-programs/building-and-renovating/building-permits/when-a-building-permit-is-required/","https://www.mississauga.ca/services-and-programs/building-and-renovating/building-permits/drawings-and-documents-you-need-for-a-building-permit/below-grade-entrance/"],"buildrules_url":"https://buildrules.ca/mississauga/basement-entrance-permit"},{"city":"Mississauga","city_slug":"mississauga","province":"Ontario","project":"Basement renovation","project_slug":"basement-renovation-permit","question":"Do you need a permit to finish a basement in Mississauga?","guidance_status":"Depends on project conditions","direct_answer":"Yes for basement finishing that creates rooms or living space, according to Mississauga’s published permit-required project list.","last_verified":"2026-10-01","official_source_count":3,"official_source_urls":["https://www.mississauga.ca/services-and-programs/building-and-renovating/building-permits/when-a-building-permit-is-required/","https://www.mississauga.ca/services-and-programs/building-and-renovating/building-permits/drawings-and-documents-you-need-for-a-building-permit/additional-residential-unit-conversions/","https://www.mississauga.ca/services-and-programs/building-and-renovating/building-permits/drawings-and-documents-you-need-for-a-building-permit/"],"buildrules_url":"https://buildrules.ca/mississauga/basement-renovation-permit"},{"city":"Mississauga","city_slug":"mississauga","province":"Ontario","project":"Basement underpinning","project_slug":"underpinning-permit","question":"Do you need a permit to underpin a foundation in Mississauga?","guidance_status":"Depends on project conditions","direct_answer":"Yes. Mississauga lists underpinning foundation walls as building-permit work.","last_verified":"2026-10-01","official_source_count":3,"official_source_urls":["https://www.mississauga.ca/services-and-programs/building-and-renovating/building-permits/when-a-building-permit-is-required/","https://www.mississauga.ca/services-and-programs/building-and-renovating/building-permits/drawings-and-documents-you-need-for-a-building-permit/below-grade-entrance/","https://www.mississauga.ca/services-and-programs/building-and-renovating/building-permits/building-documents-and-forms/"],"buildrules_url":"https://buildrules.ca/mississauga/underpinning-permit"},{"city":"Mississauga","city_slug":"mississauga","province":"Ontario","project":"Deck","project_slug":"deck-permit","question":"Do you need a permit for a deck in Mississauga?","guidance_status":"Depends on project conditions","direct_answer":"A deck less than 600 mm (2 ft) high is listed as permit-exempt. Higher or otherwise permit-triggering deck work should be checked against the City requirements before construction.","last_verified":"2026-10-01","official_source_count":2,"official_source_urls":["https://www.mississauga.ca/services-and-programs/building-and-renovating/building-permits/when-a-building-permit-is-required/","https://www.mississauga.ca/services-and-programs/building-and-renovating/building-permits/drawings-and-documents-you-need-for-a-building-permit/deck-porch-or-balcony/"],"buildrules_url":"https://buildrules.ca/mississauga/deck-permit"},{"city":"Mississauga","city_slug":"mississauga","province":"Ontario","project":"Garage / carport","project_slug":"garage-permit","question":"Do you need a permit for a detached garage in Mississauga?","guidance_status":"Depends on project conditions","direct_answer":"Mississauga provides a dedicated building-permit submission route for detached garages and other accessory structures.","last_verified":"2026-10-01","official_source_count":1,"official_source_urls":["https://www.mississauga.ca/services-and-programs/building-and-renovating/building-permits/drawings-and-documents-you-need-for-a-building-permit/accessory-structure-shed-gazebo-detached-garage/"],"buildrules_url":"https://buildrules.ca/mississauga/garage-permit"},{"city":"Mississauga","city_slug":"mississauga","province":"Ontario","project":"Home addition","project_slug":"home-addition-permit","question":"What do you need for a home addition permit in Mississauga?","guidance_status":"Depends on project conditions","direct_answer":"A residential addition uses a dedicated building permit submission package with site, architectural and supporting documentation.","last_verified":"2026-10-01","official_source_count":1,"official_source_urls":["https://www.mississauga.ca/services-and-programs/building-and-renovating/building-permits/drawings-and-documents-you-need-for-a-building-permit/addition/"],"buildrules_url":"https://buildrules.ca/mississauga/home-addition-permit"},{"city":"Mississauga","city_slug":"mississauga","province":"Ontario","project":"Plumbing","project_slug":"plumbing-permit","question":"When do you need a plumbing permit in Mississauga?","guidance_status":"Depends on project conditions","direct_answer":"Adding, removing or relocating plumbing fixtures and installing, replacing or repairing plumbing drainage require a permit; same-location fixture replacement is listed as permit-exempt.","last_verified":"2026-10-01","official_source_count":1,"official_source_urls":["https://www.mississauga.ca/services-and-programs/building-and-renovating/building-permits/when-a-building-permit-is-required/"],"buildrules_url":"https://buildrules.ca/mississauga/plumbing-permit"},{"city":"Mississauga","city_slug":"mississauga","province":"Ontario","project":"Retaining wall","project_slug":"retaining-wall-permit","question":"Do you need a permit for a retaining wall in Mississauga?","guidance_status":"Depends on project conditions","direct_answer":"Mississauga lists retaining walls under one metre high as permit-exempt; taller walls require a different permit review.","last_verified":"2026-10-01","official_source_count":1,"official_source_urls":["https://www.mississauga.ca/services-and-programs/building-and-renovating/building-permits/when-a-building-permit-is-required/"],"buildrules_url":"https://buildrules.ca/mississauga/retaining-wall-permit"},{"city":"Mississauga","city_slug":"mississauga","province":"Ontario","project":"Roof replacement","project_slug":"roof-replacement-permit","question":"Do you need a permit to replace roof shingles in Mississauga?","guidance_status":"Depends on project conditions","direct_answer":"Re-shingling a roof is listed as work that does not require a building permit.","last_verified":"2026-10-01","official_source_count":1,"official_source_urls":["https://www.mississauga.ca/services-and-programs/building-and-renovating/building-permits/when-a-building-permit-is-required/"],"buildrules_url":"https://buildrules.ca/mississauga/roof-replacement-permit"},{"city":"Mississauga","city_slug":"mississauga","province":"Ontario","project":"Shed / accessory structure","project_slug":"shed-permit","question":"What are the shed bylaw and permit rules in Mississauga?","guidance_status":"Depends on project conditions","direct_answer":"A qualifying storage shed under 15 m² can be permit-exempt, but zoning still controls where and how an accessory structure can be built.","last_verified":"2026-10-01","official_source_count":3,"official_source_urls":["https://www.mississauga.ca/services-and-programs/building-and-renovating/building-permits/when-a-building-permit-is-required/","https://www.mississauga.ca/services-and-programs/building-and-renovating/building-permits/drawings-and-documents-you-need-for-a-building-permit/accessory-structure-shed-gazebo-detached-garage/","https://www.mississauga.ca/services-and-programs/building-and-renovating/zoning-information/zoning-for-residential-projects/accessory-buildings-and-structures/"],"buildrules_url":"https://buildrules.ca/mississauga/shed-permit"},{"city":"Mississauga","city_slug":"mississauga","province":"Ontario","project":"Skylight","project_slug":"skylight-permit","question":"Do you need a building permit for a skylight in Mississauga?","guidance_status":"Depends on project conditions","direct_answer":"Yes. Mississauga lists skylights among projects that require a building permit.","last_verified":"2026-10-01","official_source_count":1,"official_source_urls":["https://www.mississauga.ca/services-and-programs/building-and-renovating/building-permits/when-a-building-permit-is-required/"],"buildrules_url":"https://buildrules.ca/mississauga/skylight-permit"},{"city":"Mississauga","city_slug":"mississauga","province":"Ontario","project":"Solar panels","project_slug":"solar-panel-permit","question":"Do you need a building permit for solar panels in Mississauga?","guidance_status":"Depends on project conditions","direct_answer":"Yes. Mississauga lists solar panels among projects that require a building permit.","last_verified":"2026-10-01","official_source_count":1,"official_source_urls":["https://www.mississauga.ca/services-and-programs/building-and-renovating/building-permits/when-a-building-permit-is-required/"],"buildrules_url":"https://buildrules.ca/mississauga/solar-panel-permit"},{"city":"Mississauga","city_slug":"mississauga","province":"Ontario","project":"Windows / doors","project_slug":"window-door-permit","question":"Do you need a permit for windows or doors in Mississauga?","guidance_status":"Depends on project conditions","direct_answer":"A new window or door, or increasing an existing opening, requires a permit. Same-size replacement is listed as permit-exempt.","last_verified":"2026-10-01","official_source_count":1,"official_source_urls":["https://www.mississauga.ca/services-and-programs/building-and-renovating/building-permits/when-a-building-permit-is-required/"],"buildrules_url":"https://buildrules.ca/mississauga/window-door-permit"},{"city":"Oakville","city_slug":"oakville","province":"Ontario","project":"Accessory apartment / second suite","project_slug":"secondary-suite-permit","question":"What do you need for a secondary suite or accessory apartment in Oakville?","guidance_status":"Depends on project conditions","direct_answer":"Oakville requires property-specific zoning review for an accessory apartment and a separate Zoning Certificate of Occupancy approval in addition to the building permit process.","last_verified":"2026-10-01","official_source_count":1,"official_source_urls":["https://www.oakville.ca/home-environment/building-renovations/building-permits-inspections/construction-projects/accessory-apartment/"],"buildrules_url":"https://buildrules.ca/oakville/secondary-suite-permit"},{"city":"Oakville","city_slug":"oakville","province":"Ontario","project":"Basement renovation","project_slug":"basement-renovation-permit","question":"Do you need a permit to finish a basement in Oakville?","guidance_status":"Depends on project conditions","direct_answer":"Yes. Oakville states that finishing or renovating a basement for personal use requires a building permit.","last_verified":"2026-10-01","official_source_count":1,"official_source_urls":["https://www.oakville.ca/home-environment/building-renovations/building-permits-inspections/construction-projects/finished-basement/"],"buildrules_url":"https://buildrules.ca/oakville/basement-renovation-permit"},{"city":"Oakville","city_slug":"oakville","province":"Ontario","project":"Basement underpinning","project_slug":"underpinning-permit","question":"Do you need a permit to underpin foundation walls in Oakville?","guidance_status":"Depends on project conditions","direct_answer":"Yes. Oakville lists underpinning foundation walls among projects that require a building permit.","last_verified":"2026-10-01","official_source_count":1,"official_source_urls":["https://www.oakville.ca/town-hall/online-services/planning-construction/building-permit-application-process/"],"buildrules_url":"https://buildrules.ca/oakville/underpinning-permit"},{"city":"Oakville","city_slug":"oakville","province":"Ontario","project":"Deck","project_slug":"deck-permit","question":"Do you need a permit for a deck in Oakville?","guidance_status":"Depends on project conditions","direct_answer":"Oakville requires a permit for decks greater than 10 m² and higher than 61 cm above grade, and for any size deck attached to a house.","last_verified":"2026-10-01","official_source_count":1,"official_source_urls":["https://www.oakville.ca/home-environment/building-renovations/building-permits-inspections/construction-projects/decks/"],"buildrules_url":"https://buildrules.ca/oakville/deck-permit"},{"city":"Oakville","city_slug":"oakville","province":"Ontario","project":"Home addition","project_slug":"home-addition-permit","question":"What do you need for a home addition in Oakville?","guidance_status":"Depends on project conditions","direct_answer":"Oakville treats a house addition as a building-permit project and directs owners to confirm zoning and prerequisite approvals before preparing the application.","last_verified":"2026-10-01","official_source_count":1,"official_source_urls":["https://www.oakville.ca/home-environment/building-renovations/building-permits-inspections/construction-projects/additions-to-a-house/"],"buildrules_url":"https://buildrules.ca/oakville/home-addition-permit"},{"city":"Oakville","city_slug":"oakville","province":"Ontario","project":"Retaining wall","project_slug":"retaining-wall-permit","question":"What permit applies to a retaining wall in Oakville?","guidance_status":"Depends on project conditions","direct_answer":"Oakville treats retaining walls as private-property site alteration work that can require a Development Engineering permit.","last_verified":"2026-10-01","official_source_count":2,"official_source_urls":["https://www.oakville.ca/home-environment/building-renovations/development-engineering-permits/","https://www.oakville.ca/home-environment/building-renovations/property-drainage-grading/"],"buildrules_url":"https://buildrules.ca/oakville/retaining-wall-permit"},{"city":"Oakville","city_slug":"oakville","province":"Ontario","project":"Roof replacement","project_slug":"roof-replacement-permit","question":"Do you need a permit to re-shingle a roof in Oakville?","guidance_status":"Depends on project conditions","direct_answer":"Oakville lists re-shingling a roof among projects that do not require a building permit.","last_verified":"2026-10-01","official_source_count":1,"official_source_urls":["https://www.oakville.ca/town-hall/online-services/planning-construction/building-permit-application-process/"],"buildrules_url":"https://buildrules.ca/oakville/roof-replacement-permit"},{"city":"Oakville","city_slug":"oakville","province":"Ontario","project":"Shed / accessory structure","project_slug":"shed-permit","question":"Do you need a permit for a shed in Oakville?","guidance_status":"Depends on project conditions","direct_answer":"Oakville says a shed, cabana or gazebo needs a permit when it has plumbing or is larger than 15 m².","last_verified":"2026-10-01","official_source_count":1,"official_source_urls":["https://www.oakville.ca/home-environment/building-renovations/building-permits-inspections/construction-projects/sheds-cabanas-gazebos/"],"buildrules_url":"https://buildrules.ca/oakville/shed-permit"},{"city":"Oakville","city_slug":"oakville","province":"Ontario","project":"Solar panels","project_slug":"solar-panel-permit","question":"Do you need a building permit for solar panels in Oakville?","guidance_status":"Depends on project conditions","direct_answer":"Oakville requires a building permit when the accumulated face area of the solar panels is at least 5 m².","last_verified":"2026-10-01","official_source_count":1,"official_source_urls":["https://www.oakville.ca/business-development/building-renovations/construction-projects/solar-panel-installation/"],"buildrules_url":"https://buildrules.ca/oakville/solar-panel-permit"},{"city":"Oakville","city_slug":"oakville","province":"Ontario","project":"Windows / doors","project_slug":"window-door-permit","question":"Do you need a permit for window or door changes in Oakville?","guidance_status":"Depends on project conditions","direct_answer":"Oakville lists new windows and increasing the size of an existing window as permit-required; same-size window and door replacement is permit-exempt.","last_verified":"2026-10-01","official_source_count":1,"official_source_urls":["https://www.oakville.ca/town-hall/online-services/planning-construction/building-permit-application-process/"],"buildrules_url":"https://buildrules.ca/oakville/window-door-permit"},{"city":"Oshawa","city_slug":"oshawa","province":"Ontario","project":"Basement renovation","project_slug":"basement-renovation-permit","question":"Do you need a permit to finish a basement in Oshawa?","guidance_status":"Depends on project conditions","direct_answer":"Yes. Oshawa lists finishing a basement among projects that require a building permit.","last_verified":"2026-10-01","official_source_count":2,"official_source_urls":["https://www.oshawa.ca/living-here/building-and-renovating/building-permits/","https://www.oshawa.ca/media-manager/media-pages/building-permits/ontario-building-code-guide-to-basement-secondary-suite/"],"buildrules_url":"https://buildrules.ca/oshawa/basement-renovation-permit"},{"city":"Oshawa","city_slug":"oshawa","province":"Ontario","project":"Basement secondary suite","project_slug":"secondary-suite-permit","question":"What do you need for a basement secondary suite in Oshawa?","guidance_status":"Depends on project conditions","direct_answer":"Adding a dwelling unit or apartment requires a building permit, and Oshawa publishes a dedicated 2024 Building Code guide for basement secondary suites.","last_verified":"2026-10-01","official_source_count":2,"official_source_urls":["https://www.oshawa.ca/living-here/building-and-renovating/building-permits/","https://www.oshawa.ca/media-manager/media-pages/building-permits/ontario-building-code-guide-to-basement-secondary-suite/"],"buildrules_url":"https://buildrules.ca/oshawa/secondary-suite-permit"},{"city":"Oshawa","city_slug":"oshawa","province":"Ontario","project":"Deck","project_slug":"deck-permit","question":"Do you need a permit for a deck in Oshawa?","guidance_status":"Depends on project conditions","direct_answer":"Oshawa lists sundecks, decks and porches as permit-required, but a house deck 600 mm or less above ground with no roof is permit-exempt.","last_verified":"2026-10-01","official_source_count":1,"official_source_urls":["https://www.oshawa.ca/living-here/building-and-renovating/building-permits/"],"buildrules_url":"https://buildrules.ca/oshawa/deck-permit"},{"city":"Oshawa","city_slug":"oshawa","province":"Ontario","project":"Home addition","project_slug":"home-addition-permit","question":"Do you need a permit for a home addition in Oshawa?","guidance_status":"Depends on project conditions","direct_answer":"Yes. Oshawa lists construction of any building or addition among projects requiring a building permit.","last_verified":"2026-10-01","official_source_count":1,"official_source_urls":["https://www.oshawa.ca/living-here/building-and-renovating/building-permits/"],"buildrules_url":"https://buildrules.ca/oshawa/home-addition-permit"},{"city":"Oshawa","city_slug":"oshawa","province":"Ontario","project":"Shed","project_slug":"shed-permit","question":"Do you need a permit for a shed in Oshawa?","guidance_status":"Depends on project conditions","direct_answer":"Oshawa requires a building permit for a shed larger than 15 m².","last_verified":"2026-10-01","official_source_count":1,"official_source_urls":["https://www.oshawa.ca/living-here/building-and-renovating/building-permits/"],"buildrules_url":"https://buildrules.ca/oshawa/shed-permit"},{"city":"Ottawa","city_slug":"ottawa","province":"Ontario","project":"Basement renovation","project_slug":"basement-renovation-permit","question":"Do you need a permit to finish a basement in Ottawa?","guidance_status":"Depends on project conditions","direct_answer":"Ottawa’s finished-basement route requires a building permit for regulated alteration work and publishes a 5-business-day first-review target.","last_verified":"2026-10-01","official_source_count":1,"official_source_urls":["https://ottawa.ca/en/planning-development-and-construction/building-and-renovating/do-i-need-building-permit/finishing-basement"],"buildrules_url":"https://buildrules.ca/ottawa/basement-renovation-permit"},{"city":"Ottawa","city_slug":"ottawa","province":"Ontario","project":"Deck","project_slug":"deck-permit","question":"Do you need a permit for a deck in Ottawa?","guidance_status":"Depends on project conditions","direct_answer":"A permit is required for several elevated-deck situations, including an attached or adjacent deck with a walking surface more than 600 mm above grade.","last_verified":"2026-10-01","official_source_count":1,"official_source_urls":["https://ottawa.ca/en/planning-development-and-construction/building-and-renovating/do-i-need-building-permit/decks"],"buildrules_url":"https://buildrules.ca/ottawa/deck-permit"},{"city":"Ottawa","city_slug":"ottawa","province":"Ontario","project":"Garage / carport","project_slug":"garage-permit","question":"Do you need a permit for a detached garage in Ottawa?","guidance_status":"Depends on project conditions","direct_answer":"A qualifying one-storey detached garage ancillary to a dwelling can be permit-exempt below 15 m²; larger accessory buildings generally require a permit.","last_verified":"2026-10-01","official_source_count":1,"official_source_urls":["https://ottawa.ca/en/planning-development-and-construction/building-and-renovating/do-i-need-building-permit/detached-garages-and-sheds"],"buildrules_url":"https://buildrules.ca/ottawa/garage-permit"},{"city":"Ottawa","city_slug":"ottawa","province":"Ontario","project":"Home addition","project_slug":"home-addition-permit","question":"Do you need a permit for a home addition in Ottawa?","guidance_status":"Depends on project conditions","direct_answer":"Yes. Ottawa identifies additions as building-permit work and gives examples including sunrooms, attached garages, porches and one- or two-storey additions.","last_verified":"2026-10-01","official_source_count":1,"official_source_urls":["https://ottawa.ca/en/planning-development-and-construction/building-and-renovating/do-i-need-building-permit/addition"],"buildrules_url":"https://buildrules.ca/ottawa/home-addition-permit"},{"city":"Ottawa","city_slug":"ottawa","province":"Ontario","project":"Plumbing","project_slug":"plumbing-permit","question":"When do you need a plumbing permit in Ottawa?","guidance_status":"Depends on project conditions","direct_answer":"Ottawa lists alterations, additions and extensions to a plumbing system as permit-required work, except replacement of existing fixtures.","last_verified":"2026-10-01","official_source_count":2,"official_source_urls":["https://ottawa.ca/en/planning-development-and-construction/building-and-renovating/do-i-need-building-permit/building-permit-projects","https://ottawa.ca/en/planning-development-and-construction/building-and-renovating/building-permit-approval-process/inspections"],"buildrules_url":"https://buildrules.ca/ottawa/plumbing-permit"},{"city":"Ottawa","city_slug":"ottawa","province":"Ontario","project":"Roof replacement","project_slug":"roof-replacement-permit","question":"Do you need a permit to replace asphalt shingles in Ottawa?","guidance_status":"Depends on project conditions","direct_answer":"Ottawa lists installing asphalt shingles on a roof among projects that do not require a building permit.","last_verified":"2026-10-01","official_source_count":1,"official_source_urls":["https://ottawa.ca/en/planning-development-and-construction/building-and-renovating/do-i-need-building-permit/projects-not-requiring-building-permits"],"buildrules_url":"https://buildrules.ca/ottawa/roof-replacement-permit"},{"city":"Ottawa","city_slug":"ottawa","province":"Ontario","project":"Secondary dwelling unit","project_slug":"secondary-suite-permit","question":"Do you need a permit for a secondary dwelling unit in Ottawa?","guidance_status":"Depends on project conditions","direct_answer":"A building permit is required when the new unit includes specified construction such as an addition, enlarged window, new exterior door or new internal shared entrance; some basement-apartment cases may require only a plumbing permit.","last_verified":"2026-10-01","official_source_count":1,"official_source_urls":["https://ottawa.ca/en/planning-development-and-construction/building-and-renovating/frequently-asked-questions/secondary-dwelling-unitapartment"],"buildrules_url":"https://buildrules.ca/ottawa/secondary-suite-permit"},{"city":"Ottawa","city_slug":"ottawa","province":"Ontario","project":"Shed / accessory structure","project_slug":"shed-permit","question":"Do you need a permit for a shed in Ottawa?","guidance_status":"Depends on project conditions","direct_answer":"A qualifying one-storey detached storage shed up to 15 m² can be permit-exempt. Other accessory buildings can have a lower 10 m² permit threshold.","last_verified":"2026-10-01","official_source_count":2,"official_source_urls":["https://ottawa.ca/en/planning-development-and-construction/building-and-renovating/do-i-need-building-permit/detached-garages-and-sheds","https://ottawa.ca/en/planning-development-and-construction/building-and-renovating/do-i-need-building-permit/projects-not-requiring-building-permits"],"buildrules_url":"https://buildrules.ca/ottawa/shed-permit"},{"city":"Ottawa","city_slug":"ottawa","province":"Ontario","project":"Windows / doors","project_slug":"window-door-permit","question":"Do you need a permit for window or door changes in Ottawa?","guidance_status":"Depends on project conditions","direct_answer":"Ottawa lists new windows, enlarged windows and relocated window or door openings as building-permit work.","last_verified":"2026-10-01","official_source_count":1,"official_source_urls":["https://ottawa.ca/en/planning-development-and-construction/building-and-renovating/do-i-need-building-permit/building-permit-projects"],"buildrules_url":"https://buildrules.ca/ottawa/window-door-permit"},{"city":"Toronto","city_slug":"toronto","province":"Ontario","project":"Backwater valve","project_slug":"backwater-valve-permit","question":"Do you need a permit for a backwater valve in Toronto?","guidance_status":"Permit likely required","direct_answer":"Yes. Toronto requires a permit to install a backwater valve.","last_verified":"2026-10-01","official_source_count":2,"official_source_urls":["https://www.toronto.ca/services-payments/building-construction/building-permit/before-you-apply-for-a-building-permit/when-do-i-need-a-building-permit/","https://www.toronto.ca/services-payments/building-construction/building-permit/before-you-apply-for-a-building-permit/building-permit-application-guides/standalone-plumbing-mechanical-and-drains/backwater-valve/"],"buildrules_url":"https://buildrules.ca/toronto/backwater-valve-permit"},{"city":"Toronto","city_slug":"toronto","province":"Ontario","project":"Basement apartment / secondary suite","project_slug":"secondary-suite-permit","question":"Do you need a permit for a basement apartment or second suite in Toronto?","guidance_status":"Permit likely required","direct_answer":"Adding a second dwelling unit in an existing house follows Toronto’s secondary suite building permit route.","last_verified":"2026-09-30","official_source_count":1,"official_source_urls":["https://www.toronto.ca/services-payments/building-construction/building-permit/before-you-apply-for-a-building-permit/building-permit-application-guides/additional-dwelling-unit-guides/secondary-suites/"],"buildrules_url":"https://buildrules.ca/toronto/secondary-suite-permit"},{"city":"Toronto","city_slug":"toronto","province":"Ontario","project":"Basement entrance","project_slug":"basement-entrance-permit","question":"Do you need a permit for a new basement entrance in Toronto?","guidance_status":"Permit likely required","direct_answer":"Yes. Toronto has a dedicated building-permit route for constructing a new residential basement entrance.","last_verified":"2026-10-01","official_source_count":0,"official_source_urls":[],"buildrules_url":"https://buildrules.ca/toronto/basement-entrance-permit"},{"city":"Toronto","city_slug":"toronto","province":"Ontario","project":"Basement renovation","project_slug":"basement-renovation-permit","question":"Do you need a permit to renovate a basement in Toronto?","guidance_status":"Depends on project conditions","direct_answer":"It depends on what you change, not simply on the fact that the work is in a basement.","last_verified":"2026-09-29","official_source_count":3,"official_source_urls":["https://www.toronto.ca/services-payments/building-construction/building-permit/before-you-apply-for-a-building-permit/when-do-i-need-a-building-permit/","https://www.toronto.ca/city-government/planning-development/zoning-by-law-preliminary-zoning-reviews/zoning-by-law-569-2013-2/","https://www.ontario.ca/page/building-code"],"buildrules_url":"https://buildrules.ca/toronto/basement-renovation-permit"},{"city":"Toronto","city_slug":"toronto","province":"Ontario","project":"Basement underpinning","project_slug":"underpinning-permit","question":"How do you prepare a basement underpinning permit application in Toronto?","guidance_status":"Permit likely required","direct_answer":"Underpinning an existing house foundation requires a building permit.","last_verified":"2026-09-30","official_source_count":1,"official_source_urls":["https://www.toronto.ca/services-payments/building-construction/building-permit/before-you-apply-for-a-building-permit/building-permit-application-guides/small-residential-project-guides/residential-underpinning-including-basement-entrances/"],"buildrules_url":"https://buildrules.ca/toronto/underpinning-permit"},{"city":"Toronto","city_slug":"toronto","province":"Ontario","project":"Change of use","project_slug":"change-of-use-permit","question":"Do you need a permit to change a building's use in Toronto?","guidance_status":"Permit likely required","direct_answer":"Yes. Toronto says a change of use can require a building permit even when no construction is proposed.","last_verified":"2026-10-01","official_source_count":2,"official_source_urls":["https://www.toronto.ca/services-payments/building-construction/building-permit/before-you-apply-for-a-building-permit/when-do-i-need-a-building-permit/","https://www.toronto.ca/city-government/planning-development/zoning-by-law-preliminary-zoning-reviews/zoning-by-law-569-2013-2/"],"buildrules_url":"https://buildrules.ca/toronto/change-of-use-permit"},{"city":"Toronto","city_slug":"toronto","province":"Ontario","project":"Deck","project_slug":"deck-permit","question":"Do you need a permit for a deck in Toronto?","guidance_status":"Depends on project conditions","direct_answer":"A permit is required when a deck is more than 60 cm (24 in) above ground. Some lower uncovered platforms can be exempt if all conditions are met.","last_verified":"2026-09-29","official_source_count":3,"official_source_urls":["https://www.toronto.ca/services-payments/building-construction/building-permit/before-you-apply-for-a-building-permit/when-do-i-need-a-building-permit/","https://www.toronto.ca/city-government/planning-development/zoning-by-law-preliminary-zoning-reviews/zoning-by-law-569-2013-2/","https://www.toronto.ca/services-payments/building-construction/building-permit/before-you-apply-for-a-building-permit/building-permit-application-guides/small-residential-project-guides/decks-and-porches/"],"buildrules_url":"https://buildrules.ca/toronto/deck-permit"},{"city":"Toronto","city_slug":"toronto","province":"Ontario","project":"Driveway widening","project_slug":"driveway-widening-permit","question":"Do you need a permit to widen a driveway in Toronto?","guidance_status":"Permit likely required","direct_answer":"Yes when the work widens or alters a driveway across City property. Toronto requires a Street Work Permit before that work, and zoning or front-yard parking rules can add a separate approval check.","last_verified":"2026-10-01","official_source_count":0,"official_source_urls":[],"buildrules_url":"https://buildrules.ca/toronto/driveway-widening-permit"},{"city":"Toronto","city_slug":"toronto","province":"Ontario","project":"Fence","project_slug":"fence-rules","question":"What fence rules apply in Toronto?","guidance_status":"Depends on project conditions","direct_answer":"Fence rules are driven more by height, location and lot context than by a standard building-permit flow.","last_verified":"2026-09-29","official_source_count":1,"official_source_urls":["https://www.toronto.ca/city-government/public-notices-bylaws/bylaw-enforcement/fences/"],"buildrules_url":"https://buildrules.ca/toronto/fence-rules"},{"city":"Toronto","city_slug":"toronto","province":"Ontario","project":"Garage / carport","project_slug":"garage-permit","question":"How do you prepare a garage / carport permit application in Toronto?","guidance_status":"Permit likely required","direct_answer":"Toronto has a dedicated permit application route for a garage or carport accessory to a house.","last_verified":"2026-09-30","official_source_count":1,"official_source_urls":["https://www.toronto.ca/services-payments/building-construction/building-permit/before-you-apply-for-a-building-permit/building-permit-application-guides/small-residential-project-guides/garages-and-carports/"],"buildrules_url":"https://buildrules.ca/toronto/garage-permit"},{"city":"Toronto","city_slug":"toronto","province":"Ontario","project":"Garden suite","project_slug":"garden-suite-permit","question":"How do you prepare a garden suite permit application in Toronto?","guidance_status":"Permit likely required","direct_answer":"A new garden suite follows a dedicated Toronto building permit route.","last_verified":"2026-09-30","official_source_count":1,"official_source_urls":["https://www.toronto.ca/services-payments/building-construction/building-permit/before-you-apply-for-a-building-permit/building-permit-application-guides/renovation-and-new-house-guides/new-garden-suite/"],"buildrules_url":"https://buildrules.ca/toronto/garden-suite-permit"},{"city":"Toronto","city_slug":"toronto","province":"Ontario","project":"Home addition","project_slug":"home-addition-permit","question":"What permits do you need for a home addition in Toronto?","guidance_status":"Permit likely required","direct_answer":"A home addition generally requires formal review, and zoning can determine whether the proposed size and placement are permitted.","last_verified":"2026-09-29","official_source_count":3,"official_source_urls":["https://www.toronto.ca/services-payments/building-construction/building-permit/before-you-apply-for-a-building-permit/when-do-i-need-a-building-permit/","https://www.toronto.ca/city-government/planning-development/zoning-by-law-preliminary-zoning-reviews/zoning-by-law-569-2013-2/","https://www.ontario.ca/page/building-code"],"buildrules_url":"https://buildrules.ca/toronto/home-addition-permit"},{"city":"Toronto","city_slug":"toronto","province":"Ontario","project":"Interior alteration","project_slug":"interior-alteration-permit","question":"How do you prepare an interior alteration permit application in Toronto?","guidance_status":"Depends on project conditions","direct_answer":"Use the interior alterations route when proposed work in a small residential building needs a building permit.","last_verified":"2026-09-30","official_source_count":1,"official_source_urls":["https://www.toronto.ca/services-payments/building-construction/building-permit/before-you-apply-for-a-building-permit/building-permit-application-guides/renovation-and-new-house-guides/interior-alterations/"],"buildrules_url":"https://buildrules.ca/toronto/interior-alteration-permit"},{"city":"Toronto","city_slug":"toronto","province":"Ontario","project":"Laneway suite","project_slug":"laneway-suite-permit","question":"Do you need a permit for a laneway suite in Toronto?","guidance_status":"Permit likely required","direct_answer":"Yes. A new laneway suite requires a building permit.","last_verified":"2026-10-01","official_source_count":2,"official_source_urls":["https://www.toronto.ca/services-payments/building-construction/building-permit/before-you-apply-for-a-building-permit/building-permit-application-guides/renovation-and-new-house-guides/new-laneway-suite/","https://www.toronto.ca/city-government/planning-development/zoning-by-law-preliminary-zoning-reviews/zoning-by-law-569-2013-2/"],"buildrules_url":"https://buildrules.ca/toronto/laneway-suite-permit"},{"city":"Toronto","city_slug":"toronto","province":"Ontario","project":"Mechanical / HVAC","project_slug":"hvac-permit","question":"Do you need an HVAC permit in Toronto?","guidance_status":"Depends on project conditions","direct_answer":"It depends on the HVAC work. Toronto has a stand-alone Mechanical (HVAC) permit route, while some common equipment changes in a house are listed as not requiring a building permit.","last_verified":"2026-10-01","official_source_count":2,"official_source_urls":["https://www.toronto.ca/services-payments/building-construction/building-permit/before-you-apply-for-a-building-permit/building-permit-application-guides/standalone-plumbing-mechanical-and-drains/standalone-mechanical-hvac/","https://www.toronto.ca/services-payments/building-construction/building-permit/before-you-apply-for-a-building-permit/when-do-i-need-a-building-permit/"],"buildrules_url":"https://buildrules.ca/toronto/hvac-permit"},{"city":"Toronto","city_slug":"toronto","province":"Ontario","project":"Multiplex conversion","project_slug":"multiplex-conversion-permit","question":"Do you need a permit to convert a Toronto house into a multiplex?","guidance_status":"Permit likely required","direct_answer":"Yes. Toronto has a building-permit route for converting an existing house to a duplex, triplex, fourplex, fiveplex or sixplex.","last_verified":"2026-10-01","official_source_count":2,"official_source_urls":["https://www.toronto.ca/services-payments/building-construction/building-permit/before-you-apply-for-a-building-permit/building-permit-application-guides/additional-dwelling-unit-guides/multiplex-conversion/","https://www.toronto.ca/city-government/planning-development/zoning-by-law-preliminary-zoning-reviews/zoning-by-law-569-2013-2/"],"buildrules_url":"https://buildrules.ca/toronto/multiplex-conversion-permit"},{"city":"Toronto","city_slug":"toronto","province":"Ontario","project":"New house","project_slug":"new-house-permit","question":"What permit do you need to build a new house in Toronto?","guidance_status":"Permit likely required","direct_answer":"A building permit is required to construct a new detached, semi-detached or row house in Toronto.","last_verified":"2026-10-01","official_source_count":1,"official_source_urls":["https://www.toronto.ca/services-payments/building-construction/building-permit/before-you-apply-for-a-building-permit/building-permit-application-guides/renovation-and-new-house-guides/new-house/"],"buildrules_url":"https://buildrules.ca/toronto/new-house-permit"},{"city":"Toronto","city_slug":"toronto","province":"Ontario","project":"Plumbing / drain work","project_slug":"plumbing-permit","question":"Do you need a plumbing permit in Toronto?","guidance_status":"Depends on project conditions","direct_answer":"New or modified plumbing systems can require a permit. Simple repair or replacement of existing plumbing fixtures is listed as permit-exempt.","last_verified":"2026-10-01","official_source_count":2,"official_source_urls":["https://www.toronto.ca/services-payments/building-construction/building-permit/before-you-apply-for-a-building-permit/when-do-i-need-a-building-permit/","https://www.toronto.ca/services-payments/building-construction/building-permit/before-you-apply-for-a-building-permit/building-permit-application-guides/standalone-plumbing-mechanical-and-drains/standalone-plumbing-and-drain-permits/"],"buildrules_url":"https://buildrules.ca/toronto/plumbing-permit"},{"city":"Toronto","city_slug":"toronto","province":"Ontario","project":"Pool fence enclosure","project_slug":"pool-fence-permit","question":"Do you need a pool fence permit in Toronto?","guidance_status":"Permit likely required","direct_answer":"Yes for most outdoor pools and similar swimming structures. Toronto requires a Pool Fence Enclosure Permit, with a zoning certificate first.","last_verified":"2026-10-01","official_source_count":2,"official_source_urls":["https://www.toronto.ca/city-government/public-notices-bylaws/bylaw-enforcement/fences/","https://www.toronto.ca/services-payments/building-construction/building-permit/before-you-apply-for-a-building-permit/preliminary-zoning-reviews-information/apply-for-a-zoning-review/zoning-certificate-for-a-pool-fence-enclosure/"],"buildrules_url":"https://buildrules.ca/toronto/pool-fence-permit"},{"city":"Toronto","city_slug":"toronto","province":"Ontario","project":"Residential demolition","project_slug":"demolition-permit","question":"Do you need a demolition permit in Toronto?","guidance_status":"Permit likely required","direct_answer":"Yes. Demolishing all or part of a building requires a permit. Toronto has a specific residential demolition route when a replacement house is planned.","last_verified":"2026-10-01","official_source_count":2,"official_source_urls":["https://www.toronto.ca/services-payments/building-construction/building-permit/before-you-apply-for-a-building-permit/when-do-i-need-a-building-permit/","https://www.toronto.ca/services-payments/building-construction/building-permit/before-you-apply-for-a-building-permit/building-permit-application-guides/renovation-and-new-house-guides/residential-demolition-permit-with-replacement-building/"],"buildrules_url":"https://buildrules.ca/toronto/demolition-permit"},{"city":"Toronto","city_slug":"toronto","province":"Ontario","project":"Retaining wall","project_slug":"retaining-wall-permit","question":"Do you need a permit for a retaining wall in Toronto?","guidance_status":"Depends on project conditions","direct_answer":"It depends on height and where the wall is located or accessible.","last_verified":"2026-10-01","official_source_count":1,"official_source_urls":["https://www.toronto.ca/services-payments/building-construction/building-permit/before-you-apply-for-a-building-permit/when-do-i-need-a-building-permit/"],"buildrules_url":"https://buildrules.ca/toronto/retaining-wall-permit"},{"city":"Toronto","city_slug":"toronto","province":"Ontario","project":"Roof replacement","project_slug":"roof-replacement-permit","question":"Do you need a permit to replace a roof in Toronto?","guidance_status":"Depends on project conditions","direct_answer":"Usually not for a straight roofing-material replacement with no structural work. Structural roof changes can change the answer.","last_verified":"2026-10-01","official_source_count":1,"official_source_urls":["https://www.toronto.ca/services-payments/building-construction/building-permit/before-you-apply-for-a-building-permit/when-do-i-need-a-building-permit/"],"buildrules_url":"https://buildrules.ca/toronto/roof-replacement-permit"},{"city":"Toronto","city_slug":"toronto","province":"Ontario","project":"Shed / accessory structure","project_slug":"shed-permit","question":"Do you need a permit for a shed in Toronto?","guidance_status":"Depends on project conditions","direct_answer":"Sometimes. Size and construction can change the permit question, while zoning can still control placement even when a permit is not required.","last_verified":"2026-09-29","official_source_count":2,"official_source_urls":["https://www.toronto.ca/services-payments/building-construction/building-permit/before-you-apply-for-a-building-permit/when-do-i-need-a-building-permit/","https://www.toronto.ca/city-government/planning-development/zoning-by-law-preliminary-zoning-reviews/zoning-by-law-569-2013-2/"],"buildrules_url":"https://buildrules.ca/toronto/shed-permit"},{"city":"Toronto","city_slug":"toronto","province":"Ontario","project":"Skylight","project_slug":"skylight-permit","question":"Do you need a permit to install a skylight in Toronto?","guidance_status":"Depends on project conditions","direct_answer":"Some skylight installations do not require a building permit when Toronto's listed small-building and structural conditions are met.","last_verified":"2026-10-01","official_source_count":1,"official_source_urls":["https://www.toronto.ca/services-payments/building-construction/building-permit/before-you-apply-for-a-building-permit/when-do-i-need-a-building-permit/"],"buildrules_url":"https://buildrules.ca/toronto/skylight-permit"},{"city":"Toronto","city_slug":"toronto","province":"Ontario","project":"Solar panels","project_slug":"solar-panel-permit","question":"Do you need a building permit for solar panels in Toronto?","guidance_status":"Depends on project conditions","direct_answer":"It depends on the system. Toronto says rooftop solar greater than 5 m² needs a building permit, while free-standing ground-mounted solar generally does not require a building permit but must follow zoning.","last_verified":"2026-10-01","official_source_count":1,"official_source_urls":["https://www.toronto.ca/services-payments/water-environment/net-zero-homes-buildings/solar-to/solar/"],"buildrules_url":"https://buildrules.ca/toronto/solar-panel-permit"},{"city":"Toronto","city_slug":"toronto","province":"Ontario","project":"Sump pump","project_slug":"sump-pump-permit","question":"Do you need a building permit for a sump pump in Toronto?","guidance_status":"Permit may not be required","direct_answer":"Toronto says a building permit is not required to install a sump pump.","last_verified":"2026-10-01","official_source_count":1,"official_source_urls":["https://www.toronto.ca/services-payments/building-construction/building-permit/before-you-apply-for-a-building-permit/when-do-i-need-a-building-permit/"],"buildrules_url":"https://buildrules.ca/toronto/sump-pump-permit"},{"city":"Toronto","city_slug":"toronto","province":"Ontario","project":"Wall removal / structural alteration","project_slug":"wall-removal-permit","question":"Do you need a permit to remove a wall in Toronto?","guidance_status":"Permit likely required","direct_answer":"Yes when the work is a structural or material alteration. Toronto specifically lists adding or removing walls as permit-required work.","last_verified":"2026-10-01","official_source_count":2,"official_source_urls":["https://www.toronto.ca/services-payments/building-construction/building-permit/before-you-apply-for-a-building-permit/when-do-i-need-a-building-permit/","https://www.toronto.ca/services-payments/building-construction/building-permit/before-you-apply-for-a-building-permit/building-permit-application-guides/renovation-and-new-house-guides/interior-alterations/"],"buildrules_url":"https://buildrules.ca/toronto/wall-removal-permit"},{"city":"Toronto","city_slug":"toronto","province":"Ontario","project":"Windows / doors","project_slug":"window-door-permit","question":"Do you need a permit to replace or add a window or door in Toronto?","guidance_status":"Depends on project conditions","direct_answer":"It depends. New openings, enlarged openings and relocated windows or doors require a building permit. Some same-opening replacements in houses are exempt.","last_verified":"2026-10-01","official_source_count":1,"official_source_urls":["https://www.toronto.ca/services-payments/building-construction/building-permit/before-you-apply-for-a-building-permit/when-do-i-need-a-building-permit/"],"buildrules_url":"https://buildrules.ca/toronto/window-door-permit"},{"city":"Vaughan","city_slug":"vaughan","province":"Ontario","project":"Basement entrance / walkout","project_slug":"basement-entrance-permit","question":"Do you need a permit for a basement walkout in Vaughan?","guidance_status":"Depends on project conditions","direct_answer":"Yes. Vaughan requires a permit for an additional entrance or basement walkout, and a grading permit must be issued before the associated building permit application.","last_verified":"2026-10-01","official_source_count":2,"official_source_urls":["https://www.vaughan.ca/residential/building-and-construction/building-permits/building-permits-homes/new-home-entrance","https://www.vaughan.ca/residential/building-and-construction/building-permits/building-permits-homes/basement-walkouts"],"buildrules_url":"https://buildrules.ca/vaughan/basement-entrance-permit"},{"city":"Vaughan","city_slug":"vaughan","province":"Ontario","project":"Basement renovation","project_slug":"basement-renovation-permit","question":"Do you need a permit to finish a basement in Vaughan?","guidance_status":"Depends on project conditions","direct_answer":"Yes. Vaughan states that a building permit is required for finishing basement areas and for work involving new or relocated plumbing fixtures.","last_verified":"2026-10-01","official_source_count":1,"official_source_urls":["https://www.vaughan.ca/residential/building-and-construction/building-permits/building-permits-homes/finishing-basement"],"buildrules_url":"https://buildrules.ca/vaughan/basement-renovation-permit"},{"city":"Vaughan","city_slug":"vaughan","province":"Ontario","project":"Deck","project_slug":"deck-permit","question":"Do you need a permit for a deck in Vaughan?","guidance_status":"Depends on project conditions","direct_answer":"Attached decks require a permit. A detached uncovered deck can be exempt only when it stays within the City’s published area and height limits.","last_verified":"2026-10-01","official_source_count":1,"official_source_urls":["https://www.vaughan.ca/residential/building-and-construction/building-permits/building-permits-homes/decks-and-porches"],"buildrules_url":"https://buildrules.ca/vaughan/deck-permit"},{"city":"Vaughan","city_slug":"vaughan","province":"Ontario","project":"Garage / carport","project_slug":"garage-permit","question":"Do you need a permit for a detached garage in Vaughan?","guidance_status":"Depends on project conditions","direct_answer":"A detached accessory structure requires a permit at 10 m² or more, when attached to another structure, or when it contains plumbing.","last_verified":"2026-10-01","official_source_count":1,"official_source_urls":["https://www.vaughan.ca/residential/building-and-construction/building-permits/building-permits-homes/accessory-structures"],"buildrules_url":"https://buildrules.ca/vaughan/garage-permit"},{"city":"Vaughan","city_slug":"vaughan","province":"Ontario","project":"Home addition","project_slug":"home-addition-permit","question":"What permits do you need for a home addition in Vaughan?","guidance_status":"Depends on project conditions","direct_answer":"Vaughan states that an addition requires a building permit and that a Grading Permit must be obtained before the associated building permit application.","last_verified":"2026-10-01","official_source_count":1,"official_source_urls":["https://www.vaughan.ca/residential/building-and-construction/building-permits/building-permits-homes/new-structure-or-addition"],"buildrules_url":"https://buildrules.ca/vaughan/home-addition-permit"},{"city":"Vaughan","city_slug":"vaughan","province":"Ontario","project":"Plumbing","project_slug":"plumbing-permit","question":"When do you need a plumbing permit in Vaughan?","guidance_status":"Depends on project conditions","direct_answer":"Vaughan requires a building permit for additions or alterations to plumbing fixtures, water services and sewer services.","last_verified":"2026-10-01","official_source_count":2,"official_source_urls":["https://www.vaughan.ca/residential/building-and-construction/building-permits/general-construction-permits/plumbing","https://www.vaughan.ca/residential/building-and-construction/building-permits"],"buildrules_url":"https://buildrules.ca/vaughan/plumbing-permit"},{"city":"Vaughan","city_slug":"vaughan","province":"Ontario","project":"Retaining wall","project_slug":"retaining-wall-permit","question":"Do you need a permit for a retaining wall in Vaughan?","guidance_status":"Depends on project conditions","direct_answer":"Vaughan lists retaining walls under one metre as permit-exempt, while walls over one metre become designated structures in specified public/access conditions.","last_verified":"2026-10-01","official_source_count":2,"official_source_urls":["https://www.vaughan.ca/residential/building-and-construction/building-permits","https://www.vaughan.ca/residential/building-and-construction/building-inspections/designated-structures"],"buildrules_url":"https://buildrules.ca/vaughan/retaining-wall-permit"},{"city":"Vaughan","city_slug":"vaughan","province":"Ontario","project":"Roof replacement","project_slug":"roof-replacement-permit","question":"Do you need a permit to replace roofing or shingles in Vaughan?","guidance_status":"Depends on project conditions","direct_answer":"Vaughan lists replacing roofing or shingles among projects that do not require a building permit.","last_verified":"2026-10-01","official_source_count":1,"official_source_urls":["https://www.vaughan.ca/residential/building-and-construction/building-permits"],"buildrules_url":"https://buildrules.ca/vaughan/roof-replacement-permit"},{"city":"Vaughan","city_slug":"vaughan","province":"Ontario","project":"Secondary suite / ADU","project_slug":"secondary-suite-permit","question":"Do you need a permit for a secondary suite or basement apartment in Vaughan?","guidance_status":"Depends on project conditions","direct_answer":"A new secondary suite must satisfy Vaughan zoning requirements and use the building permit process before construction.","last_verified":"2026-10-01","official_source_count":1,"official_source_urls":["https://www.vaughan.ca/residential/secondary-suites/how-get-secondary-suite-adu"],"buildrules_url":"https://buildrules.ca/vaughan/secondary-suite-permit"},{"city":"Vaughan","city_slug":"vaughan","province":"Ontario","project":"Shed / accessory structure","project_slug":"shed-permit","question":"What are the shed bylaw and permit rules in Vaughan?","guidance_status":"Depends on project conditions","direct_answer":"Vaughan’s zoning guidance requires sheds in the rear yard, generally 0.6 m from the property line, with a maximum height of 2.5 m. A qualifying storage-only shed up to 15 m² can also be permit-exempt under the City’s separate building-permit guidance.","last_verified":"2026-10-01","official_source_count":2,"official_source_urls":["https://www.vaughan.ca/residential/by-laws-and-enforcement/property-by-laws/zoning/zoning-by-law-enforcement","https://www.vaughan.ca/residential/building-and-construction/building-permits"],"buildrules_url":"https://buildrules.ca/vaughan/shed-permit"},{"city":"Vaughan","city_slug":"vaughan","province":"Ontario","project":"Windows / doors","project_slug":"window-door-permit","question":"Do you need a permit for windows or doors in Vaughan?","guidance_status":"Depends on project conditions","direct_answer":"A permit is required for a new exterior door or window opening or when increasing the width of an existing opening; existing like-for-like replacements are listed as permit-exempt.","last_verified":"2026-10-01","official_source_count":2,"official_source_urls":["https://www.vaughan.ca/residential/building-and-construction/building-permits/building-permits-homes/door-and-window-openings","https://www.vaughan.ca/residential/building-and-construction/building-permits"],"buildrules_url":"https://buildrules.ca/vaughan/window-door-permit"},{"city":"Waterloo","city_slug":"waterloo","province":"Ontario","project":"Additional residential unit","project_slug":"secondary-suite-permit","question":"Do you need a permit for an additional residential unit in Waterloo?","guidance_status":"Depends on project conditions","direct_answer":"Yes. Waterloo requires a building permit to add an additional residential unit to a home.","last_verified":"2026-10-01","official_source_count":1,"official_source_urls":["https://www.waterloo.ca/building-and-renovating/additional-residential-units-arus/build-an-aru-on-the-main-floor-or-basement/"],"buildrules_url":"https://buildrules.ca/waterloo/secondary-suite-permit"},{"city":"Waterloo","city_slug":"waterloo","province":"Ontario","project":"Basement renovation","project_slug":"basement-renovation-permit","question":"Do you need a permit to renovate a basement in Waterloo?","guidance_status":"Depends on project conditions","direct_answer":"Waterloo typically requires a building permit for basement finishing and regulated interior changes such as walls, insulation, structure, plumbing or use.","last_verified":"2026-10-01","official_source_count":1,"official_source_urls":["https://www.waterloo.ca/building-and-renovating/get-a-building-permit/find-project-checklists-and-requirements/interior-renovations-and-basements/"],"buildrules_url":"https://buildrules.ca/waterloo/basement-renovation-permit"},{"city":"Waterloo","city_slug":"waterloo","province":"Ontario","project":"Deck","project_slug":"deck-permit","question":"Do you need a permit for a deck in Waterloo?","guidance_status":"Depends on project conditions","direct_answer":"A building permit is required when a deck is more than 24 inches above ground or has a roof or cover.","last_verified":"2026-10-01","official_source_count":1,"official_source_urls":["https://www.waterloo.ca/building-and-renovating/get-a-building-permit/find-project-checklists-and-requirements/decks/"],"buildrules_url":"https://buildrules.ca/waterloo/deck-permit"},{"city":"Waterloo","city_slug":"waterloo","province":"Ontario","project":"Detached garage","project_slug":"garage-permit","question":"Do you need a permit for a detached garage in Waterloo?","guidance_status":"Depends on project conditions","direct_answer":"A detached garage requires a building permit when it is over 10 m² or contains plumbing.","last_verified":"2026-10-01","official_source_count":1,"official_source_urls":["https://www.waterloo.ca/building-and-renovating/get-a-building-permit/find-project-checklists-and-requirements/sheds-and-detached-garages/"],"buildrules_url":"https://buildrules.ca/waterloo/garage-permit"},{"city":"Waterloo","city_slug":"waterloo","province":"Ontario","project":"Home addition","project_slug":"home-addition-permit","question":"Do you need a permit for a home addition in Waterloo?","guidance_status":"Depends on project conditions","direct_answer":"Yes. Waterloo requires a building permit for any addition that changes the home’s footprint.","last_verified":"2026-10-01","official_source_count":1,"official_source_urls":["https://www.waterloo.ca/building-and-renovating/get-a-building-permit/find-project-checklists-and-requirements/additions/"],"buildrules_url":"https://buildrules.ca/waterloo/home-addition-permit"},{"city":"Waterloo","city_slug":"waterloo","province":"Ontario","project":"Shed","project_slug":"shed-permit","question":"Do you need a permit for a shed in Waterloo?","guidance_status":"Depends on project conditions","direct_answer":"A shed needs a permit when it is over 15 m² or includes plumbing. Smaller qualifying sheds can be permit-exempt but still must follow zoning.","last_verified":"2026-10-01","official_source_count":1,"official_source_urls":["https://www.waterloo.ca/building-and-renovating/get-a-building-permit/find-project-checklists-and-requirements/sheds-and-detached-garages/"],"buildrules_url":"https://buildrules.ca/waterloo/shed-permit"},{"city":"Whitby","city_slug":"whitby","province":"Ontario","project":"Additional dwelling unit","project_slug":"secondary-suite-permit","question":"What do you need for an additional dwelling unit in Whitby?","guidance_status":"Depends on project conditions","direct_answer":"Whitby requires the applicable building permits and registration for ADUs, with property eligibility governed by zoning and Town requirements.","last_verified":"2026-10-01","official_source_count":1,"official_source_urls":["https://www.whitby.ca/services-and-payments/building-and-renovating/additional-dwelling-units/"],"buildrules_url":"https://buildrules.ca/whitby/secondary-suite-permit"},{"city":"Whitby","city_slug":"whitby","province":"Ontario","project":"Basement renovation","project_slug":"basement-renovation-permit","question":"Do you need a permit to finish a basement in Whitby?","guidance_status":"Depends on project conditions","direct_answer":"Yes. Whitby lists finished basements among typical projects requiring a building permit.","last_verified":"2026-10-01","official_source_count":1,"official_source_urls":["https://www.whitby.ca/services-and-payments/building-and-renovating/building-permits/"],"buildrules_url":"https://buildrules.ca/whitby/basement-renovation-permit"},{"city":"Whitby","city_slug":"whitby","province":"Ontario","project":"Deck","project_slug":"deck-permit","question":"Do you need a permit for a deck in Whitby?","guidance_status":"Depends on project conditions","direct_answer":"Whitby lists decks greater than 24 inches above grade among typical projects requiring a building permit.","last_verified":"2026-10-01","official_source_count":1,"official_source_urls":["https://www.whitby.ca/services-and-payments/building-and-renovating/building-permits/"],"buildrules_url":"https://buildrules.ca/whitby/deck-permit"},{"city":"Whitby","city_slug":"whitby","province":"Ontario","project":"Home addition","project_slug":"home-addition-permit","question":"Do you need a permit for a home addition in Whitby?","guidance_status":"Depends on project conditions","direct_answer":"Yes. Whitby lists additions among typical permit-required projects and accepts Residential Alterations / Additions applications through its E-Portal.","last_verified":"2026-10-01","official_source_count":1,"official_source_urls":["https://www.whitby.ca/services-and-payments/building-and-renovating/building-permits/"],"buildrules_url":"https://buildrules.ca/whitby/home-addition-permit"},{"city":"Whitby","city_slug":"whitby","province":"Ontario","project":"Shed","project_slug":"shed-permit","question":"Do you need a shed permit in Whitby?","guidance_status":"Depends on project conditions","direct_answer":"A shed accessory to a dwelling can be permit-exempt when it is less than 15 m², but zoning rules still apply.","last_verified":"2026-10-01","official_source_count":1,"official_source_urls":["https://www.whitby.ca/town-hall/by-laws/accessory-structures/"],"buildrules_url":"https://buildrules.ca/whitby/shed-permit"}]}