Richmond HillBuilding PermitsAdditions & Alterations
Residential Addition / Alteration Application Process
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
- Type
- Form
- Published by
- City of Richmond Hill
- Also called
- Addition or Alteration
- Form reference
- OBC Article 9.15.4.2
- For
- homeowner
- Building types
- All building types
- Pages
- 2
Overview
Richmond Hill's Form R2 checklist for a residential addition or alteration permit application, linked from the city's residential permits page. Its first page gives permit and plumbing fees and notes that additions over 400 square feet in footprint involve a site alteration permit, a $7,000 grading deposit and a $3,000 road damage deposit. The reverse lists the drawings, from limiting-distance calculations to an engineered foundation wall detail tied to OBC article 9.15.4.2, plus mechanical drawings, a tree declaration, the on-site sewage (septic) checklist, and designer information.
What it covers
- Required Drawings
- Structural Information
- Mechanical Drawings
- Other Submissions
- Tree Declaration
- On-Site Sewage System
- Designer Information
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