Vaughan project guide

What permits do you need for a home addition in Vaughan?

Check Vaughan home addition requirements, including the building permit, separate grading permit and size-based grading fees.

1 min readReviewed Oct 1, 2026

The short answerConditional

Vaughan states that an addition requires a building permit and that a Grading Permit must be obtained before the associated building permit application.

This makes the early site/grading review part of the critical path. The City publishes separate grading fees and security deposits based on addition size.

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What changes the answer.

Start with these conditions. The official reference is attached to each one.

Building permitRequiredConditional

Vaughan states that an addition requires a building permit before construction.

Official sourceCity of VaughanNew Structure or Addition · Building and grading permit requirements

Verified2026-10-01Open proof

Grading permitRequired before the associated building permit applicationConditional

The City directs applicants to obtain a Development Engineering Grading Permit first.

Official sourceCity of VaughanNew Structure or Addition · Building and grading permit requirements

Verified2026-10-01Open proof

Grading feeVaries by addition sizeInfo

Vaughan publishes separate grading fees for additions above and below 40 m².

Official sourceCity of VaughanNew Structure or Addition · Building and grading permit requirements

Verified2026-10-01Open proof

Your preparation checklist

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Grading permit submission
Site and grading information
Building permit application
Architectural and structural drawings
Applicable supporting forms

Open the focused permit checklist

Fees and timing

TimelineConfirm the current municipal review stream after the application is accepted as complete.

FeesConfirm the current Vaughan fee schedule for the exact permit class.

Next steps

Check zoning and site feasibility
Obtain the grading permit
Prepare the building permit drawings
Submit the associated building permit application

Same project, different city

See how this rule changes across Ontario.

Compare the source-reviewed answer for this project across every municipality BuildRules currently covers.

Compare home addition rules by city

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BuildRules principle

Do not confuse “no permit” with “no rules.”

Zoning, overlays, safety rules and other constraints can still apply.

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