Richmond Hill · Checklistswritten
Published by City of Richmond Hill under Residential Permits
The City of Richmond Hill's checklist for a residential addition or alteration building permit application. It notes that additions over 400 square feet in footprint trigger a site alteration permit, a $7,000 grading deposit and a $3,000 road damage deposit. Required drawings cover unprotected-opening and limiting-distance calculations, walk-out and deck details, and engineered foundation wall detail once a wall exceeds the height in OBC Article 9.15.4.2, alongside a tree declaration and a cross-reference to the on-site sewage system checklist where no municipal sewer connects.
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