The City of Calgary estimates about 21 days for a new house's building permit and about 7 days for most home projects, plus 10 to 12 weeks for a development permit when the design needs one, as of October 2026 (The City of Calgary, new houses). Its own permit records run slower: new-house permits issued from January to September 2026 took a median of 26 days from application to issue, up from 14 days in 2025 (The City of Calgary, open data). For the whole approval to start a new home, the City says about 2 to 3 months (The City of Calgary, approval timelines).
Key takeaways
- As of October 2026, the City estimates about 21 days for a new house's building permit and 10 to 12 weeks for a development permit in the developed area (The City of Calgary, new houses).
- The median new-house building permit took 26 days from application to issue from January to September 2026, against 14 days in 2025 (The City of Calgary, open data).
- From April to June 2026, the City issued 88% of new-community house permits within its 7-day target and 85% of infill house permits within its 30-day target (The City of Calgary, safety approval timelines).
- Development permits for new houses decided in 2025 took a median of 90 days to a decision and 133 days to release; 544 of 546 were approved (The City of Calgary, development permits).
- A rowhouse on a lot that went back to its old zoning on 4 August 2026 needs a land use redesignation first, which the City targets at 180 days (The City of Calgary, development approval timelines).
How long does a building permit take in Calgary in 2026?
Longer than the City's estimates for almost every project, and longer than in 2025. Here are the estimates beside the days permits took from application to issue, from a query of the City's open data on 5 October 2026 (The City of Calgary, open data):
| Project | City's estimate | 2025 median | 2026 median, January to September | Slowest quarter of 2026 permits took at least |
|---|---|---|---|---|
| New house | About 21 days | 14 days | 26 days | 34 days |
| Semi-detached house, per unit | About 21 days | 14 days | 21 days | 30 days |
| Addition | About 7 days | 29 days | 43 days | 75 days |
| Basement development | About 7 days | 8 days | 13 days | 20 days |
| Basement suite in an existing house | About 7 days to legalize one | 18 days | 25 days | 45 days |
| Detached garage | About 7 days | 8 days | 20 days | 34 days |
| Deck | About 7 days | 12 days | 19 days | 31 days |
| Backyard garage suite | Not stated | 54 days | 58 days | 86 days |
Note: City estimates as of October 2026 from its additions, basements, suites, garages and decks pages. The other columns count calendar days, excluding cancelled permits and any earlier development permit.
Here's how many new homes the City permitted in 2025:
| Permit type | Permits | Median declared value |
|---|---|---|
| New house | 4,550 | $348,815 |
| Semi-detached house, one unit | 1,480 | $184,868 |
| Backyard garage suite | 179 | $130,044 |
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: The declared value is the applicant's figure, not a quote; for a new house it also sets the permit fee.
The new-house slowdown arrived in the spring: a median of 13.5 days for permits issued from January to March 2026, then 27 days from April to June and 29 from July to September. The City's timeline pages give no reason.
What do the City's own targets say?
The City publishes a target for each kind of permit and how often it met it. These are its results for April to June 2026 (The City of Calgary, safety approval timelines; The City of Calgary, development approval timelines):
| Approval | Target | Decisions within target | Average days |
|---|---|---|---|
| New-community house, permission to start | 1 day | 99% | 0 |
| New-community house, permit issued | 7 days | 88% | 3 |
| Infill house, permission to start | 14 days | 72% | 15 |
| Infill house, permit issued | 30 days | 85% | 13 |
| Home improvement, low complexity | 7 days | 66% | 10 |
| Home improvement, high complexity | 21 days | 85% | 15 |
| Development permit, house in the developed area | 90 days | 81% | 70 |
| Land use redesignation (rezoning) | 180 days | 71% | 157 |
Note: The City's figures in calendar days. It calls new communities "greenfield"; its development averages include the applicant's time, and its building averages don't say.
The City's averages and its open data don't match. The City's average for issuing a new-community house permit was 3 days in the same quarter that the open data's median new house took 27 days from application to issue; the top communities were new ones, such as Rangeview and Moraine. Both can be true if the City's clock starts later than the application date, such as once an application is complete, but its building safety page doesn't say. Plan on the open data, which counts every day you wait.
Do you need a development permit before the building permit?
Only in some cases, but when you do, it's the longest step. For a new house, the City requires one when you build in the developed area, when the house is a discretionary use in its district, when you ask for a relaxation of the Land Use Bylaw, on R-Gm land, or where the lot has no City services (The City of Calgary, new houses).
In the developed area you choose between two kinds. A contextual application follows a strict design guide with no relaxations; one that meets every rule can't be refused or appealed. A discretionary application allows more design freedom and relaxations, but takes longer and is less certain. Here are the City's estimates beside what development permits decided in 2025 took (The City of Calgary, development permits):
| Development permit | City's estimate | 2025 median to decision | 2025 median to release | Decided in 2025 |
|---|---|---|---|---|
| Contextual house | 60 days to decision; 8 to 10 weeks | 63 days | 94 days | 99, all approved |
| Discretionary house, semi or duplex | 90 days to decision plus a 21-day appeal period; 10 to 12 weeks | 90 days | 133 days | 546, 2 refused |
| Garage relaxation | 60 days to decision plus 21; 10 to 12 weeks | 50 days | 81 days | 113, 2 refused |
Note: Calendar days from application, rounded; release comes after the appeal period and any conditions are met.
The City's own numbers don't add up here. Its new house page lists 90 days to a decision plus a 21-day appeal period for a discretionary house, 111 days in all, yet totals it at 10 to 12 weeks. The 2025 records sit closer to 111.
The steps explain the time. A notice can be posted on the lot at least 7 days before a decision, and comment periods run 7 to 21 days. After approval, anyone affected has 21 days to appeal, and release waits on any prior-to-release conditions (The City of Calgary, development permit process). You can apply for the building permit once the development permit is approved with conditions, which saves some of that time.
In what order do the approvals come for a new house?
Rezoning if you need it, then the development permit, then the building permit, inspections and occupancy:
The demolition permit goes in before the new house's building permit, or after its development permit when the house needs one. In the developed area, a partial permit lets the builder start the foundations, up to the main floor subfloor, while the full review finishes, at the builder's own risk (The City of Calgary, new houses).
What slows a Calgary building permit down?
Mostly a missing piece, either in the application or in a reply. The City says its timelines depend on volumes, application completeness and "the applicant's timely replies" to its requests (The City of Calgary, new houses).
- An incomplete application. The checklist is the minimum, and the City may ask for more. If what it asks for isn't supplied within 90 days, it may refuse the application, after written notice and 30 days to resubmit.
- A relaxation. Any rule the design breaks turns a straight building permit into a development permit first. The garage cost guide shows the most common ones for garages.
- Zoning that changed on 4 August 2026. Council repealed citywide rezoning, and 99% of properties went back to their pre-2024 zoning. A rowhouse on a lot that reverted needs a land use redesignation from Council before its development permit (The City of Calgary, rezoning).
The rezoning page contradicts itself: its banner dates the change to 4 August 2024, while its FAQ gives 4 August 2026. This guide follows the FAQ, which agrees with the April and July 2026 Council decisions listed further down that page.
Suite permits got faster in August 2026. Bylaw 26P2026 made secondary suites a permitted use in all low-density districts, so a suite that meets every rule needs only a building permit. The City's secondary suite permit requirements page still says R-C1, R-C1L and R-1 lots need a development permit as of 5 October 2026. See the basement suite guide.
How can you keep your permit on schedule?
Send a complete application and answer requests fast. The City's advice: work from the checklist, use its sample drawings, and follow up on requests "as quickly as possible" (The City of Calgary, new houses). For a development permit, it adds plans drawn to professional standards and a written reason for any relaxation (The City of Calgary, development permit process). Fees are in the Calgary building permits guide, and nearby towns run their own systems, as the Airdrie permit guide shows.
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.
Sessions are quoted for the plan by its size, the quote is free, and there's nothing to pay at booking (get a quote). Send the plan as a PDF or AutoCAD (DWG) file at least three days ahead, then book a session, or see how sessions work for builders.
Questions
How long does a development permit take in Calgary?
A development permit for a new house in Calgary's developed area takes 10 to 12 weeks by the City's estimate, or 8 to 10 weeks for a contextual design, as of October 2026 (The City of Calgary, new houses). In 2025, discretionary house permits took a median of 133 days from application to release (The City of Calgary, development permits).
How long does a building permit for a new house take in Calgary?
A new-house building permit in Calgary takes about 21 days by the City's estimate as of October 2026 (The City of Calgary, new houses). The median permit issued from July to September 2026 took 29 days from application (The City of Calgary, open data).
Why is my Calgary building permit taking so long?
A Calgary building permit usually takes longer when the application is missing something, when the City is waiting on your reply, or when the design needs a development permit first (The City of Calgary, new houses). Permits have also slowed across the board in 2026: the median for every home project in this guide's table rose against 2025.
How long is a Calgary building permit valid?
A Calgary building permit expires 180 days from the date it's issued, and homeowner and contractor trade permits after 330 days, as of October 2026 (The City of Calgary, garages). The City mails a reminder, and you can apply to extend a permit.
Sources
- The City of Calgary, new houses calgary.ca
- The City of Calgary, open data data.calgary.ca
- The City of Calgary, approval timelines calgary.ca
- The City of Calgary, safety approval timelines calgary.ca
- The City of Calgary, development permits data.calgary.ca
- The City of Calgary, development approval timelines calgary.ca
- additions calgary.ca
- basements calgary.ca
- suites calgary.ca
- garages calgary.ca
- decks calgary.ca
- The City of Calgary, development permit process calgary.ca
- The City of Calgary, rezoning calgary.ca
- secondary suite permit requirements calgary.ca

