When we quote an infill or a whole-house renovation, the question that comes back the most is how long the permit takes. Owners have usually heard something between "a few weeks" and "a year," which is not a helpful range. Here is what a realistic timeline looks like in 2026 for a mature-core Edmonton custom infill.
The two-permit path, in order
Edmonton uses a two-stage permit path.
- Development Permit first: checks whether the design is allowed on that specific lot under the zoning bylaw and any applicable overlays. Site coverage, height, setbacks, parking, use. Does not review structural details.
- Building Permit second: checks whether the design meets the Alberta Building Code. Structural, life safety, mechanical, electrical, plumbing.
They do not run in parallel. This is the single most important thing to understand about the timeline. You cannot start construction until both are issued, and you cannot apply for the Building Permit until the Development Permit is fully cleared (which means past its appeal window).
The realistic week count
For a straightforward mature-core infill, on a compliant design with no variances:
- Weeks 0 to 8: Design and drawing set. Site plan, floor plans, elevations, structural sizing, mechanical layout, energy compliance calculations. Faster than 8 weeks is possible on a smaller scope; longer is normal on a complex design or slow decision-making.
- Weeks 8 to 12: Development Permit review. The city's posted processing times update regularly; the 4 to 6 week band is typical for a complete, compliant application in 2026. Incomplete applications get returned and reset the clock.
- Weeks 12 to 15: Development Permit issued, then a mandatory 21-day appeal window. Nothing you can do to skip this. If nobody appeals, the permit is fully valid at day 22. If someone appeals, add 6 to 10 weeks for the hearing and ruling.
- Weeks 15 to 20: Building Permit review. 3 to 6 weeks typical for a residential infill scope, faster if the reviewer has recently seen the same builder's detailing.
- Weeks 20 to 22: Utility service coordination and site prep. Water, gas, power, sewer service confirmations. Often runs in parallel with the tail end of Building Permit review.
- Week 22: Shovel legally in the ground.
Total elapsed time, decision-to-build to shovel: roughly 5 months for a clean, compliant infill.
What speeds it up
- A compliant design that needs no variances. The single biggest speed factor. A design that respects the overlay by construction, rather than asking for exceptions, does not trigger the extra review layer.
- A complete, well-organized application. Every drawing labelled, every calculation shown, every plot correctly scaled. City reviewers who do not have to send back for clarification are city reviewers who move to the next file.
- A builder the reviewer has seen before. Not favouritism, familiarity. A reviewer who recognizes your builder's detailing standards spends less time cross-checking.
- Not fighting the tree. If the lot has a protected tree, design the foundation around its root protection zone from the start rather than asking for a variance to remove or root-prune it.
What slows it down
- Variances. Each material variance ask adds 2 to 4 weeks and increases the chance of an appeal.
- Appeals. A neighbour or a body corporate filing to the Subdivision and Development Appeal Board pauses the Development Permit for the duration of the hearing process, typically 6 to 10 weeks.
- Incomplete applications. A submission missing required drawings, an energy compliance report, or a proper site survey gets returned and effectively restarts the review clock.
- Utility service surprises. On a lot without existing water, gas, power, or sewer service to the correct capacity, the utility company timelines are their own animal, and can add 4 to 8 weeks.
- Old, incorrect legal descriptions. On some subdivided or historically re-platted lots, the title description does not match the physical footprint, and the discrepancy has to be reconciled before permits can be issued.
Building Permit fees, roughly
Typical city and utility fees on a mature-core infill in 2026 break down roughly like this:
- Development Permit application: around $2,800
- Building Permit application: around $6,200
- Combined Safety Codes Council permits (electrical, plumbing, gas, HVAC): around $3,800
- Development levies (lot-dependent): commonly $6,000 to $12,000
- Water and sewer service coordination fees: around $4,200
Total city and utility fees on a standard mature-core infill: $18,000 to $30,000, before the ANHW warranty enrolment premium at $1,200 to $2,000.
Winter and the concrete pour
Weather does not care about the timeline. Concrete cannot easily be poured below a certain temperature (roughly minus 10 Celsius sustained), and doing it earlier requires heated blankets and additives that add cost and slow curing. In practice, an Edmonton build that hits permit-ready in November usually starts in April. Owners deciding when to start design should think in seasons, not just months.
Full package timeline, a clean run
For a compliant mature-core infill with no variances and no appeals filed, the elapsed time from decision-to-build to shovel typically looks like this:
- Design and drawings: 8 to 10 weeks
- Development Permit review: 4 to 6 weeks
- Appeal window: 3 weeks (no notice of appeal filed)
- Building Permit review: 3 to 5 weeks
- Utility service coordination and site prep: 2 weeks
- Total: roughly 5 to 6 months, decision-to-build to shovel
Variances, tree preservation adjustments, or an appeal notice each add weeks, sometimes months. The times above are a clean run, not a promise.
What owners should hold onto
Two facts.
First, the 21-day appeal window is not negotiable. Anyone who tells you they can get around it is either mistaken or misrepresenting the process. Build it into your calendar.
Second, the two-permit path is designed to catch design and code issues before they become expensive to fix. A project that clears both permits cleanly is a project whose construction is easier and cheaper than one that got pushed through with unresolved issues.
For a deeper look at what the Mature Neighbourhood Overlay adds on top of the base zoning, see our permits pillar post. For a full cost view of an infill build once permits are in hand, our Edmonton infill cost pillar walks through what happens after shovel goes in.