This is one of the first questions almost every client asks, and one the architecture and construction industry is not always honest about. Timelines get underestimated at the start and quietly revised as things unfold. We would rather give you a realistic picture from the beginning so you can plan around it.
The short answer for most custom homes in Western Canada: expect twelve to twenty-four months from first meeting to occupancy. Design takes four to six months. Permitting takes one to six months depending on the city. Construction takes eight to fourteen months. These phases overlap in places, but the total is rarely less than a year and is often closer to eighteen months for a carefully considered build.
Phase 1: Design — four to six months
The design process has four stages, each building on the last. Discovery and site analysis takes two to four weeks — we visit the site, review zoning and context, and develop a thorough understanding of how the clients live. This is the most important phase and the one clients most often want to rush. We do not rush it.
Schematic design takes four to eight weeks. We go away and put our heads down — design research, conceptualization, spatial iteration — and then bring the client back in to review our proposal. If we have done our job, we get it right and move forward. If we have not, we keep working until we do. Design development follows over six to eight weeks, resolving materials, envelope, structural approach, and engineering coordination. Construction documents — the full permit and tender set — take eight to twelve weeks.
The critical variable throughout is client responsiveness. We produce work in bursts and need client feedback to move forward. A client who takes three weeks to review drawings adds three weeks to the timeline. That is not a complaint. It is a design reality worth planning for.
Phase 2: Permit — one to six months
Permit timelines vary more than clients expect, and understanding your specific municipality matters enormously.
In Calgary, development permits for residential infill have ranged from six to sixteen weeks depending on application volumes and whether the proposal requires a variance. Straightforward sites that comply with the Land Use Bylaw move faster. Sites requiring a variance trigger public notification and add time.
Vancouver is the most complex permit environment in Western Canada. Standard residential permits target a review period measured in weeks, but projects involving heritage, variances, or incomplete submissions routinely take four to twelve months. The City's streamlined Development Building Permit pathway for R1-1 multiplexes introduced in early 2025 has helped on eligible projects, but complex sites still require careful management.
Victoria and the CRD target four-week review timelines for complete applications. Kelowna targets four to six weeks for straightforward single-family projects, with hillside permits running in parallel for sloped sites.
The most effective way to manage permit timelines is to submit a complete application the first time. Deficiency notices reset the review clock. An architect who prepares permit packages as a regular part of practice, and who has submitted to your specific municipality before, will move through the process consistently faster than one who has not.
Phase 3: Construction — eight to fourteen months
For a custom home in the range of 2,500 to 4,500 square feet, eight to twelve months from groundbreaking to occupancy is typical under normal conditions. Larger or more complex homes, significant excavation, or projects in markets with tight trade availability can run to fourteen months or beyond.
The most common causes of delay are not slow trades. They are late design decisions that require drawings to be revised mid-construction, long-lead material orders that were not identified early enough, and sub-trade availability gaps in markets where skilled labour is scarce. An architect who stays involved during construction — reviewing shop drawings, responding to site questions, resolving details as they come up — reduces delays materially. Construction administration is not oversight for its own sake. It is a schedule management tool.
The most expensive decision most clients make is starting too late. Every month of delay in engaging an architect is a month added to the end of the project, not the beginning.
When to engage an architect
The single most effective way to compress the overall timeline is to engage an architect early — ideally before you have purchased your site. A site review and zoning check before purchase can identify constraints that would materially affect the timeline and budget. Occasionally it reveals that a site that seemed ideal is significantly more complicated than it appeared. We offer this as a short fixed-fee engagement, and it pays for itself immediately.
If you already have a site, engage an architect before you finalize your brief, before you talk to builders, and before you make any commitments about timing or budget. The design process generates the information that makes accurate builder pricing possible. Starting with a builder and asking them to estimate a project that has not been designed produces numbers that will change significantly once it has been.
A realistic total timeline
- Straightforward inner-city site, efficient permitting city: 12 to 15 months
- Complex site, Calgary or Vancouver permit environment: 18 to 22 months
- Heritage or variance-dependent project in Vancouver: 22 to 28 months
The lower end is achievable with a well-prepared client, a site without significant constraints, and a design that does not require substantial revision. The upper end reflects complex sites, demanding permit environments, and the natural pace of careful construction. Both ends are real.