{"name":"BuildRules permit index: Halton Hills","canonical_url":"https://buildrules.ca/permit-index/halton-hills","generated_at":"2026-10-14T07:37:29.299Z","latest_verified":"2026-10-02","coverage":{"cities":1,"project_types":3,"city_project_answers":3,"official_source_urls":2},"methodology_url":"https://buildrules.ca/methodology","source_directory_url":"https://buildrules.ca/sources","records":[{"city":"Halton Hills","city_slug":"halton-hills","province":"Ontario","project":"Basement apartment / secondary suite","project_slug":"secondary-suite-permit","question":"Do you need approvals for an additional residential unit in Halton Hills?","guidance_status":"Depends on project conditions","direct_answer":"Yes. Halton Hills treats an accessory apartment as permit-regulated work and requires ARU registration before occupancy.","last_verified":"2026-10-02","official_source_count":2,"official_source_urls":["https://www.haltonhills.ca/Building-Permits","https://www.haltonhills.ca/aru"],"buildrules_url":"https://buildrules.ca/halton-hills/secondary-suite-permit"},{"city":"Halton Hills","city_slug":"halton-hills","province":"Ontario","project":"Deck","project_slug":"deck-permit","question":"Do you need a permit for a deck in Halton Hills?","guidance_status":"Depends on project conditions","direct_answer":"Halton Hills lists decks among residential projects that require a building permit.","last_verified":"2026-10-02","official_source_count":1,"official_source_urls":["https://www.haltonhills.ca/Building-Permits"],"buildrules_url":"https://buildrules.ca/halton-hills/deck-permit"},{"city":"Halton Hills","city_slug":"halton-hills","province":"Ontario","project":"Shed / accessory structure","project_slug":"shed-permit","question":"Do you need a permit for a shed in Halton Hills?","guidance_status":"Depends on project conditions","direct_answer":"Halton Hills lists sheds greater than 15 m² as requiring a building permit.","last_verified":"2026-10-02","official_source_count":1,"official_source_urls":["https://www.haltonhills.ca/Building-Permits"],"buildrules_url":"https://buildrules.ca/halton-hills/shed-permit"}]}