As of September 2026, the City of Calgary charges a flat building permit fee for most home projects, with the 4% Safety Codes Council levy included (The City of Calgary, fee schedule 2026). It's $205.92 for a deck, $333.84 for a new basement, a detached garage or an addition under 400 sq ft, $403.52 for a new secondary suite and $1,302.08 for a backyard suite or a larger addition. A new house pays $112 plus $10.14 for every $1,000 of construction value, and the City's fee calculator values single-detached living area at $150.35 per sq ft (The City of Calgary, fee calculator 2026).
Key takeaways
- As of September 2026, a Calgary building permit costs $205.92 for a deck, $333.84 for a new basement, garage or addition under 400 sq ft and $1,302.08 for a backyard suite, levy included (The City of Calgary, fee schedule 2026).
- A new house valued at the 2025 median of $348,815 (The City of Calgary, open data) pays $3,843.02 in building permit fees (The City of Calgary, fee calculator 2026).
- A backyard suite always needs a development permit first, and that permit costs $0 until 31 December 2026 under the City's suite amnesty (The City of Calgary, planning fee schedule 2026).
- The City estimates about 7 days for an addition's building permit (The City of Calgary, additions), but the median addition permit in 2025 took 29 days from application to issue (The City of Calgary, open data).
Which home projects need a building permit in Calgary?
A new house, an addition and either kind of suite always need one, and a basement, garage or deck needs one past a set size or height. A development permit comes on top when a design breaks a Land Use Bylaw rule.
Here's when each project needs each permit, as of September 2026:
| Project | Building permit | Development permit as well |
|---|---|---|
| New house | Yes (The City of Calgary, new houses) | Always in the developed area, or when it needs a relaxation |
| Addition | Yes; sunrooms, covered decks and attached garages count (additions) | When it breaks a bylaw rule, as an upper-floor addition over 10 m² (107 sq ft) or a main-floor one over 40 m² (431 sq ft) does |
| Basement | First-time development, moved walls or new openings (The City of Calgary, basements) | When the design breaks a bylaw rule |
| Secondary suite | Yes (The City of Calgary, secondary suites) | When suites are discretionary in your district or the design breaks a rule |
| Backyard suite | Yes (The City of Calgary, backyard suites) | Yes, before any other permit |
| Detached garage | Over 10 m² (107 sq ft) (The City of Calgary, garages) | Over 4.6 m (15 ft 1 in) high, over 75 m² (807 sq ft) or bigger than the house |
| Deck | Covered, or any point more than 0.6 m (2 ft) above grade (The City of Calgary, decks) | In front of the house, or within 1.2 m (3 ft 11 in) of a side property line or 6 m (19 ft 8 in) of the rear one |
Note: A summary of the City's project pages, not the full bylaw; check your address with its land use tool.
What does a building permit cost in Calgary in 2026?
Every project here except a new house pays a flat fee, whatever the work is worth. These are the City's 2026 building and planning application fees, as of September 2026:
| Project | Building permit | Development permit, if needed |
|---|---|---|
| New house | $112 plus $10.14 per $1,000 of value, plus the 4% levy | $1,859 in the developed area, or $1,078 for a contextual design |
| Addition under 400 sq ft | $333.84 | $395 up to 10 m², $775 to $1,247 over 10 m² (developed area) |
| Addition over 400 sq ft | $1,302.08 | As above |
| First-time basement development | $333.84 | $550 |
| Renovating a house or developed basement | $205.92 | $550 |
| New secondary suite | $403.52 | $0 until 31 December 2026 |
| Backyard suite | $1,302.08 | $0 until 31 December 2026 |
| Detached garage | $333.84 | $550 |
| Deck | $205.92 | $550 |
Note: City fees as of September 2026. Flat fees include the 4% Safety Codes Council levy, and trade permits are extra except on a new house.
A new house is the one project where value sets the fee. The calculator rounds the value up to the next $1,000, so a house valued at the 2025 median of $348,815 pays $3,538.86 plus the $112 fee. The 4% levy ($146.03), a $20 lot grading fee and a $26.13 water fee bring it to $3,843.02. That permit also covers the house's electrical, plumbing, gas and heating work (The City of Calgary, new houses).
Other projects need their own trade permits: $116.50 each for a homeowner doing the work, or $112 plus $9.79 per $1,000 of the trade work when a contractor pulls it. Start work before the permit is issued and the fee doubles (The City of Calgary, fee schedule 2026).
What is the declared value, and why is it so low?
It's the construction value on the permit application. For a new house, the calculator sets it at fixed rates per sq ft: $150.35 for single-detached living area, $34.36 for a developed basement and $47.43 for an attached garage. They leave out land, design fees and the goods and services tax (GST) (The City of Calgary, fee calculator 2026).
Builders charge far more: Altus Group puts 2026 Calgary hard costs at $180 to $275 per sq ft for a standard house with an unfinished basement and $495 to $1,135 for a custom home (Altus Group, 2026). The City's $150.35 sits below both, so declared values trail what you'll pay, as the custom home cost guide shows.
For the other six projects the fee is flat, so the declared value doesn't change what you pay. It's the applicant's own estimate, not a quote. Here's what 2025's permits show for all seven:
| Permit type | Permits | Median declared value |
|---|---|---|
| New house | 4,550 | $348,815 |
| Addition | 459 | $54,183 |
| Basement development | 1,514 | $32,504 |
| Basement suite, existing house | 2,126 | $63,751 |
| Backyard garage suite | 179 | $130,044 |
| Detached garage | 2,854 | $42,434 |
| Deck | 721 | $5,637 |
Source: City of Calgary building permits open data, permits issued in 2025 excluding cancelled ones, retrieved 2026-09-25. The median is of the construction value declared on the permit application. It isn't a quote and usually runs below what the work really costs. New homes and commercial work pay permit fees on this value; most home alterations pay a flat fee.
Note: Medians of declared values, not prices. The home addition cost guide explains why the addition median is only $54,183.
How long does a building permit take in Calgary?
About a week for most home projects and three weeks for a new house, by the City's estimates. A development permit, when you need one, adds 10 to 12 weeks before that. Here are the estimates beside the days 2025's permits took from application to issue (The City of Calgary, open data):
| Project | City's estimate | 2025 median | Slowest quarter took at least |
|---|---|---|---|
| New house | About 21 days | 14 days | 24 days |
| Addition | About 7 days | 29 days | 73 days |
| Basement development | About 7 days | 8 days | 15 days |
| Basement suite, existing house | About 7 days to legalize one | 18 days | 40 days |
| Backyard garage suite | Not stated | 54 days | 92 days |
| Detached garage | About 7 days | 8 days | 20 days |
| Deck | About 7 days | 12 days | 25 days |
Note: City estimates as of September 2026. The 2025 columns count calendar days from application to issue, not any earlier development permit.
Between April and June 2026, infill houses got permission to start within the City's 14-day target 72% of the time (The City of Calgary, safety approval timelines). Development permits for houses in established areas averaged 70 days (The City of Calgary, development approval timelines). The City puts approval to start a new home at about 2 to 3 months in all (The City of Calgary, approval timelines).
In what order do the approvals come?
The development permit comes first, then the building permit, trade permits, inspections and occupancy (The City of Calgary, safety approval timelines).
For a knock-down, the demolition permit goes in before the new house's building permit, or after its development permit. In established areas, a $94 partial permit lets the foundation start while the review finishes. A new house is inspected before backfill, before drywall and before possession, and the City issues permission to occupy once the final inspections pass (The City of Calgary, new houses).
What changed for suites on 4 August 2026?
Since 4 August 2026, a Calgary property can have a secondary suite or a backyard suite, not both. Bylaw 26P2026 made secondary suites a permitted use in all low-density districts, so a suite that follows every rule goes straight to a building permit. Backyard suites stay discretionary except in R-G and need parking again (The City of Calgary, rezoning). The basement suite and backyard suite guides cover costs and layout.
Three City pages haven't caught up as of 25 September 2026. The backyard suite page says a house "can have both a secondary suite and a backyard suite" (The City of Calgary, backyard suites). The secondary suite page's FAQ says the same, though its rule list doesn't (The City of Calgary, secondary suites). The rezoning page's banner dates the change to 2024.
This guide follows the rezoning page's summary of Council's 2026 decisions, because it records what Council passed. Confirm your address with the City at 403-268-5311.
Where does a full-size walkthrough fit?
Before you apply. A permit review checks drawings against the rules, not whether the rooms work for you.
At 1to1 Plans Calgary, your plan is lit at full size from inside a walkable LED floor, with room names and dimension lines, and changes show on the floor on the spot. Daniel, a Calgary custom builder (@daniel_built), walks every client through their plans there before submitting for permits, and in his experience every client changes something.
A session is two hours and is quoted for your plan, with nothing to pay at booking; send the plan through the pricing page for a free quote. See sessions for homeowners and renovations, or book one and send plans as a PDF or AutoCAD (DWG) file at least three days ahead.
Questions
Do I need a building permit for a deck in Calgary?
In Calgary, a deck needs a building permit if it's covered or if any point of an uncovered deck is more than 0.6 m (2 ft) above grade, as of September 2026. The permit is $205.92 and the City estimates about 7 days (The City of Calgary, decks).
How much is a building permit for basement development in Calgary?
A building permit to develop a Calgary basement for the first time costs $333.84 as of September 2026, and renovating a developed basement costs $205.92 (The City of Calgary, basements). Electrical and plumbing permits are separate, at $116.50 each for a homeowner doing the work. A kitchen and a bathroom together make it a secondary suite.
Do I need a permit for a detached garage in Calgary?
Yes, a detached garage in Calgary needs a building permit once it's larger than 10 m² (107 sq ft). The permit is $333.84 as of September 2026, and a new garage also needs an electrical permit (The City of Calgary, garages).
A garage taller than 4.6 m (15 ft 1 in) or larger than 75 m² (807 sq ft) needs a development permit too. For sizing, see the garage size guide.
What's the difference between a development permit and a building permit in Calgary?
In Calgary, a development permit checks a project against the Land Use Bylaw: its use, size, height and position on the lot. A building permit checks the structure against building safety requirements (The City of Calgary, additions). When a project needs both, the development permit comes first.
Sources
- The City of Calgary, fee schedule 2026 calgary.ca
- The City of Calgary, fee calculator 2026 calgary.ca
- The City of Calgary, open data data.calgary.ca
- The City of Calgary, planning fee schedule 2026 calgary.ca
- The City of Calgary, additions calgary.ca
- The City of Calgary, new houses calgary.ca
- The City of Calgary, basements calgary.ca
- The City of Calgary, secondary suites calgary.ca
- The City of Calgary, backyard suites calgary.ca
- The City of Calgary, garages calgary.ca
- The City of Calgary, decks calgary.ca
- Altus Group, 2026 image.hello.altusgroup.com
- The City of Calgary, safety approval timelines calgary.ca
- The City of Calgary, development approval timelines calgary.ca
- The City of Calgary, approval timelines calgary.ca
- The City of Calgary, rezoning calgary.ca

