Markham project guide

Do you need a permit for a garage or carport in Markham?

Check Markham building permit requirements for detached and attached garages and carports, plus the housing permit submission route.

1 min readReviewed Oct 1, 2026

The short answerConditional

Yes. Markham states that detached and attached garages and carports are included in construction work requiring a building permit.

Detached garages use the City’s housing permit framework with applicable forms, drawings and zoning review.

Make this useful for my project

Know what matters

What changes the answer.

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

Detached garagePermit requiredConditional

Markham includes detached garages among housing permit examples and permit-required construction.

Official sourceCity of MarkhamGuide to Building Permits · Detached garage housing permit route

Verified2026-10-01Open proof

Attached garage / carportPermit requiredConditional

Markham states that attached and detached garages and carports require a building permit.

Official sourceCity of MarkhamDecks, Construction, Permits · Detached and attached garage/carport permit requirement

Verified2026-10-01Open proof

ZoningApplicable-law review appliesInfo

The City reviews permit applications against zoning and other applicable law.

Official sourceCity of MarkhamBuilding Permit Process · Roof, solar, retaining wall and accessory-building exemptions

Verified2026-10-01Open proof

Your preparation checklist

Your preparation progress

0 of 5 ready

Your progress is saved in this browser. Come back whenever you’re ready.

Applicable Law Checklist
Schedule 1 Designer Information where applicable
Site plan
Floor/foundation plans
Elevations and sections

Open the focused permit checklist

Fees and timing

TimelineConfirm the current municipal review stream after a complete application is submitted.

FeesConfirm the current Markham permit fee for the exact scope before filing.

Next steps

Define attached vs detached construction
Check zoning
Prepare the housing permit drawings
Submit through ePLAN

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 garage / carport rules by city

Better decisions, together

Get everyone on the same page.

Send this to your designer or contractor before agreeing on the scope.

Paid research brief

Get a clearer plan before you spend.

Turn the published rules, documents, timing and questions to verify into one project-specific preparation brief.

39 CADone-time

See what’s included

Research guidance only. Municipal approval and professional design are separate.

A little help with the next step

Move your garage / carport forward.

Tell us what kind of help you need. We’ll save the request with your project and municipality so a relevant provider can respond if a match is available.

BuildRules principle

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

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

Keep exploring

Your next useful question.

A connected project guide or a practical next step, picked for this topic.

All project guides

Related project

Do you need a permit for a shed in Markham?

Markham’s current permit-process page lists the under-15 m² accessory-building exemption for housing projects. The structure still needs to comply with the zoning by-law.

1 min read

Related project

Do you need a permit for a deck in Markham?

Markham’s permit guidance also says attached decks require a permit. Zoning and applicable-law checks should happen before the permit application is prepared.

1 min read