{"name":"BuildRules permit index: Ottawa","canonical_url":"https://buildrules.ca/permit-index/ottawa","generated_at":"2026-10-07T08:26:14.580Z","latest_verified":"2026-10-01","coverage":{"cities":1,"project_types":9,"city_project_answers":9,"official_source_urls":8},"methodology_url":"https://buildrules.ca/methodology","source_directory_url":"https://buildrules.ca/sources","records":[{"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"}]}