Do You Need a Permit to Build a Deck in Calgary?

When you need a building permit

The City of Calgary requires a building permit when:

• The deck is covered — that includes a deck with a pergola or a roof.
• The deck is uncovered but its surface is higher than 0.6 m (2 ft) above grade at any point.
• You rebuild, extend or add stairs to an existing uncovered deck that is higher than 0.6 m above grade.

An uncovered deck that is 0.6 m (2 ft) or lower above grade at every point does not need a building permit. On sloped yards, measure at the lowest point of the ground — a deck that is low at the house can still be well above 0.6 m at the far end.

When you may also need a development permit

Separately from the building permit, the City lists cases where a development permit may be required, for example when the deck is:

• Located at the front of the home.
• Closer than 1.2 m to a side property line.
• Closer than 6 m to the rear property line.
• On a property within, or within 6 m of, a floodway.

Pergolas, roofs and future plans

Because a pergola or roof makes the deck “covered”, adding one later can turn a no-permit deck into one that needs a permit. If you think you might want shade later, design the deck and its footings for it from the start.

Composite or wood decking?

Pressure-treated wood is the budget-friendly option and is easy to repair. Cedar looks and smells great but needs regular staining. Composite boards cost more up front but need far less maintenance — no staining or sanding — which many Calgary homeowners prefer given our freeze-thaw winters and strong summer sun. The frame underneath is usually pressure-treated lumber either way.

Before you start

• Check your Real Property Report so you know where the property lines are.
• Request utility locates through Utility Safety Partners (Click Before You Dig) at least three working days before digging footings.
• If a permit is needed, allow time for the application and inspections before your planned build date.

How Josan Construction & Landscaping can help

We design and build composite and wood decks, railings, stairs and pergolas across Calgary and nearby communities. We confirm whether your deck needs a permit as part of the quote. Estimates are free, and we speak English, Hindi, Punjabi and Urdu.

Sources

• City of Calgary – Decks: permits and requirements
• Utility Safety Partners – Click Before You Dig (homeowners)

Sources checked October 15, 2026. City guidance changes and has no legal status — always confirm requirements with the City of Calgary for your property.