HamiltonBuilding PermitsAdditional Residential Units
Additional Dwelling Unit Checklist
Published by City of Hamilton
This is the City of Hamilton’s document, as published on its website on 19 October 2026. The municipality may have changed it since: check the current version at the source. Legal notice
- Type
- Checklist
- Published by
- City of Hamilton
- Date
- Jul 2025
- Also called
- ADU Checklist
- For
- any
- Building types
- All building types
- Pages
- 2
- Instruments
- Ontario Building Code, Division A, Article 1.4.1.3
Overview
The City of Hamilton Building Division's ADU Requirement Checklist, issued by the Planning and Economic Development Department. It sets out the information listed for four kinds of additional dwelling unit project: converting a single family dwelling to add an internal ADU, converting an existing detached ADU, a new detached additional dwelling unit, and a new purpose-built single family dwelling with an ADU. Each lists the application form, Schedule 1, SB-12 EEDS and water pipe sizing forms, floor plans, elevations, cross-sections, truss and HVAC drawings, site plan and applicable law.
What it covers
- Type of Information Required: Conversion of SFD to add an Internal ADU
- Type of Information Required: Existing Detached ADU Conversion
- Type of Information Required: New Detached Additional Dwelling Unit
- Type of Information Required: New Purpose-Built Single Family Dwelling with ADU
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