Richmond HillBuilding PermitsAdditional Residential Units
Published by City of Richmond Hill
This is the City of Richmond Hill’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
The City of Richmond Hill Building Division's one-page Applicant / Homeowner Declaration for building permit applications that use pre-approved reference model plans, linked from the City's Additional Residential Unit page. The applicant acknowledges four points: use of pre-approved plans exactly as issued, that changes or alterations void their pre-approved status and lead to a revision review, design responsibility for altered plans under O. Reg. 163/24, and applicant responsibility. An office-use box records the Reference Model File Number and Building Permit File Number.
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