Home addition Permit Checklist in London, Ontario

Home addition permit checklist

Use a project-specific home addition permit checklist for London, Ontario: documents, next steps, source review date and official references.

Focused project answerReviewed Oct 1, 2026

Use this before you submit

5 items to prepare for this project.

This checklist is generated only when BuildRules has enough project-specific documentation and source context to make a separate page useful.

Project template

Use it as a working list. The final submission still needs to match your actual scope and the City’s current requirements.

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AdditionPermit required

London lists an addition to an existing building among projects that require a permit.

Official sourceCity of LondonBefore you apply for a building permit · Residential permit triggers, exemptions and review timelines

Verified2026-10-01Open proof

ZoningReviewed with the permit

The City states that permit review checks London’s Zoning By-Law and other applicable approvals.

Official sourceCity of LondonBefore you apply for a building permit · Residential permit triggers, exemptions and review timelines

Verified2026-10-01Open proof

Property-specific approvalsMay also apply

The permit process checks other approvals needed for the specific property and project.

Official sourceCity of LondonBefore you apply for a building permit · Residential permit triggers, exemptions and review timelines

Verified2026-10-01Open proof

The main guide keeps the permit trigger, zoning questions, documents, fees, timing and next steps together.