Project template
Your preparation checklist
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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What to do next
- Measure the deck height above existing grade
- Confirm whether it is attached to the dwelling
- Check the applicable zoning by-law
- Submit the complete application through ePLAN when required
Official sources behind this page
HeightPermit required above 600 mm
Markham lists raised decks more than 24 inches above existing grade as requiring a building permit.
City of MarkhamBuilding Permit Process · Permit triggers, exemptions, zoning and application requirements
2026-10-01Open proof
Low deckPermit not required below 600 mm under the published housing exemption
The City lists decks less than 600 mm above existing grade at all locations among housing projects that do not need a permit.
City of MarkhamBuilding Permit Process · Permit triggers, exemptions, zoning and application requirements
2026-10-01Open proof
Zoning / applicable lawCheck before applying
Markham directs applicants to confirm zoning and other applicable laws before preparing the permit application.
City of MarkhamBuilding Permit Process · Permit triggers, exemptions, zoning and application requirements
2026-10-01Open proof
Need the full project answer?
The main guide keeps the permit trigger, zoning questions, documents, fees, timing and next steps together.
Open the deck guide