Home Additions in Calgary

Home Additions in Calgary — Clear Guidance from Idea to Approval

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DO I NEED A PERMIT FOR A HOME ADDITION IN CALGARY?

Yes. All home additions in Calgary require at least a building permit. A building permit is always required because an addition alters the structure of the home and must comply with the Alberta Building Code. Depending on the size and location of the addition, a development permit may also be required.

Permit-ready drawings and approvals

We provide end-to-end support for home additions requiring a building permit, a development permit, or both.

Our services include:

Zoning and land use review
Confirmation of setback, height, and site coverage limits
Preparation of permit-ready drawings
Coordination of structural requirements where needed
Submission and management of City of Calgary permits

Experience with City of Calgary approvals

Calgary-specific expertise

We work with City of Calgary permits every day across many neighbourhoods and lot types.

Design that supports approvals

Drawings are prepared with zoning and building code requirements in mind.

Clarity over complexity

We explain what permits are required and why — without overcomplicating the process.

Fewer surprises

Early review reduces redesigns, delays, and unexpected review comments.

Design that works for approvals, not just construction

We prepare addition drawings aligned with Calgary Land Use Bylaw, Alberta Building Code and City of Calgary review standards

This approach helps addition applications move efficiently through approval.

HOW THE CALGARY ADDITION PERMIT PROCESS WORKS

Step 1 — Project Review

We review your property, proposed addition size, and location to confirm required permits.

Step 2 — Permit-Ready Drawings

We prepare professional drawings tailored for City of Calgary review.

Step 3 — Permit Management

We submit, coordinate, and manage permits through approval.

Client experiences

"I wanted to have a secondary suite and the team at Permit Masters was incredibly helpful with the entire permit process. They were very professional, conducted the site visit promptly, and within a week, they had submitted my application."

“We are very grateful for the services that we received from the Permit Masters professional team. They capture all the details and provide an easy to understand structure and outline to completing the permit process.”

“We moved into a house that had renovations done to it but no building permits. We wanted to get retroactive permits, if possible, in case there was ever an issue with our home insurer such as a fire or an injury related to the renos. In the end, we got all the permits we were looking for and the file is now closed. The whole process was smooth and easy.”

CALGARY HOME ADDITION RULES & FAQs

Do all home additions require a development permit in Calgary?

No. A development permit is typically not required if the addition is 40 square metres or less and is located within 1.5 metres of the front façade or within 4.6 metres of the rear façade, and the addition complies with all Land Use Bylaw requirements. If the addition requires any variance to zoning rules or exceeds these limits, a development permit is required.

Do all home additions require a building permit?

Yes. All home additions in Calgary always require a building permit to confirm compliance with the Alberta Building Code.

How much does a building permit cost for a home addition in Calgary?

City of Calgary building permit fees are based on the size of the addition:

Under 400 sq ft: $333.84
Over 400 sq ft: $1,302.86

These fees apply to the building permit only and may change.

Do I need other permits for my home addition?

Possibly. If the project includes electrical, plumbing, heating, ventilation, or gas work, trade permits will be required. Trade permits must be applied for by licensed trades.

How long does it take to get permits approved for a home addition in Calgary?

Development permit: 6-12 weeks, including review and advertising
Building permit: typically about 7 days once a complete application is submitted

Timelines vary by season. Winter reviews are often faster, while spring and summer may take longer.

Built on Knowledge, Proven Through Results

Being a master means understanding how home additions are actually reviewed in Calgary — not just how the bylaws are written. We use real-world approval experience to guide projects with clarity, accuracy, and fewer surprises.