BC Pre-Approved Multiplex Designs: What's Available and How to Use Them
In the 1960s and 70s, the "Vancouver Special" was a standardized design repeated across thousands of lots — efficient, affordable, and perfectly suited to its era. BC's 10 free pre-approved multiplex designs are the same idea for the SSMUH era. They save $30,000–$50,000 in architecture fees and speed up permit approval by 4–8 weeks. Almost nobody knows they exist.
10
Free designs from BC government
$30K–$50K
Savings in architecture fees
4–8 weeks
Faster permit review
What the BC government released
The Province commissioned the BC Standardized Housing Design Project in 2023 and released 10 designs in 2024. Leckie Studio Architecture led the project, with four partner firms contributing additional configurations. The mandate: create designs that comply with the BC Building Code, fit standard Metro Vancouver lot sizes, and are as close to building-permit-ready as possible.
| Design type | Units | Typical lot size | Notes |
|---|---|---|---|
| Side-by-side duplex | 2 | 33 ft+ | 2BR and 3BR configurations available |
| Stacked duplex | 2 | 33 ft+ | Fits narrower lots; full-floor ownership |
| Triplex | 3 | 40 ft+ | Mix of 2BR and 3BR |
| Fourplex (2-building) | 4 | 33–40 ft | Front and rear buildings; works on standard 33×120 lots |
| Fourplex (single building) | 4 | 40 ft+ | Compact stacked configuration |
| Townhouse / rowhouse | 3–4 | 50 ft+ | Street-facing entries, family unit sizes |
| ADU / laneway (3 variants) | 1 | Requires lane access | 1-storey, 1.5-storey, and 2-storey configurations |
Each package includes floor plans, elevations, basic structural specifications, energy code compliance documentation, and site plan templates.
The $30,000–$50,000 savings calculation
Full custom architecture for a fourplex in Vancouver runs $80,000–$120,000. This covers concept development, schematic design, design development, construction documents, permit coordination, and construction administration. Every stage is billed at the architect's hourly rate.
| Work stage | Custom design | Pre-approved design |
|---|---|---|
| Concept and schematic design | $20,000–$30,000 | $0 (done) |
| Design development | $15,000–$20,000 | $5,000–$8,000 (site amendments) |
| Construction documents | $25,000–$40,000 | $18,000–$28,000 |
| Permit coordination + admin | $12,000–$18,000 | $10,000–$15,000 |
| Total architecture | $72,000–$108,000 | $33,000–$51,000 |
The savings column above represents work that is already done in the pre-approved design package. Your local architect still needs to coordinate site-specific adjustments, but they are not starting with a blank canvas.
How permit review is faster
Municipality plan checkers review each new submission against the BC Building Code, local design guidelines, and zoning bylaw. A custom design requires a full review from scratch — checking structural, energy, fire separation, egress, and accessibility against every applicable code section.
A pre-approved design has already passed an initial code review. The municipality's checkers focus on the site-specific amendments, not the entire design. The time saving is structural, not just administrative.
The City of Vancouver's June 2026 permit reforms created a dedicated multiplex intake track. Submissions using BC pre-approved designs go through a streamlined review path. The development permit target dropped from 12–16 weeks to 6–10 weeks for straightforward pre-approved design submissions.
What you can and cannot change
The pre-approved designs are not rigid templates. They are designed to be adapted. What you can change without losing the expedited permit benefit:
- Interior finishes and specifications
- Cladding material and exterior colour scheme
- Window placement within the approved openings
- Minor plan adjustments to accommodate specific lot dimensions
- Landscape design
What will trigger a full review (and remove the expedited benefit):
- Adding or removing a floor
- Changing the structural system (e.g., switching from wood frame to mass timber)
- Significantly altering the footprint or massing
- Modifying the suite mix in ways that change the fire separation or egress design
Work with a local architect to understand the boundary for your specific project and municipality. The goal is to customize for your site without triggering a full re-review.
Which municipalities have adopted expedited processing
Adoption of streamlined pre-approved design processing varies by municipality. Confirmed as of July 2026:
- Vancouver — dedicated multiplex intake, 50% faster review for pre-approved submissions
- Burnaby — expedited track for pre-approved BC designs in R-1 zones
- Several smaller municipalities — following the Province's guidance to accept pre-approved designs on an expedited basis
Confirm with your specific municipality's building department before submitting. Rules evolve, and not every city has formalized the expedited path in the same way.
Frequently asked questions
Do I still need an architect if I'm using a pre-approved design?
Yes. BC Building Code and municipal permit requirements mandate that construction drawings be prepared or reviewed and stamped by a registered BC architect. The pre-approved designs are a starting point — your architect adapts them for your specific lot and stamps the final permit drawings. You still hire an architect; you just pay them less because the conceptual design work is done.
How do the BC pre-approved designs relate to VanPlex's design guidelines?
The BC government designs are generic templates suitable for any BC municipality. VanPlex's design guidelines layer site-specific optimization on top: which configurations maximize FSR on a specific lot width, how to orient units for solar gain, how to position parking for lane-access lots, and how to structure the strata or rental tenure to match the project's financial goals.
Can the pre-approved designs be used for a Net-Zero or Passivhaus build?
Yes, with modifications. The standard designs comply with BC Energy Step Code Step 3. Upgrading to Step 4 or Passivhaus typically requires envelope upgrades (additional insulation, triple-pane windows, heat recovery ventilation) that need to be coordinated with the structural and mechanical drawings. This is standard work for an architect experienced with high-performance construction — it does not require starting the design over. The Step Code bonus (FSR uplift of up to 0.2 on a 33-ft lot in Vancouver) can increase rentable area meaningfully; discuss the trade-off with your architect.
See which pre-approved design fits your lot
Enter your address to see the lot dimensions, eligible unit counts, and which BC pre-approved configurations would work for your specific property.