Building a Prefab Home in Metro Vancouver: Costs, Permits and Timelines Explained

Building a Prefab Home in Metro Vancouver: Costs, Permits and Timelines Explained

Prefab homes are getting a lot of attention in the Lower Mainland, and for good reason: a house built in a factory can be on your lot and weathertight in a day or two. But the factory is only half the story. The permit, the site work, the foundation and the crane day decide whether a prefab project stays on budget and on schedule. This guide walks through the whole process in plain terms, so you know what you’re signing up for before you call a manufacturer.

What “prefab” actually means

“Prefab” covers three quite different products. It’s worth knowing which one you’re looking at, because each has its own costs, code path and site requirements.

When prefab makes sense, and when it doesn’t

Prefab mainly saves time on site. It doesn’t automatically save money.

The process, start to finish

A prefab project runs on two tracks at once: the factory builds the house while the permit is reviewed and the foundation is built on site. The goal is for the foundation to be finished and inspected the week the house ships.

1. Feasibility. Confirm ownership, zoning, setbacks, height limits, slope, trees, services and, above all, crane and truck access.
2. Choosing a manufacturer. Compare two or three quotes. Check the CSA certification, exactly what’s included (“to the box” versus turnkey), deposit terms, and their delivery experience in the Lower Mainland.
3. Design and engineering. The manufacturer’s drawings are combined with a site plan, a structural design for the foundation and connections, a geotechnical report and an energy model.
4. Building permit. The same application as any new home, plus the certification details (see below).
5. Factory production. Usually released once the permit is close, so the house doesn’t end up in paid storage.
6. Site preparation and foundation. Built precisely to the manufacturer’s foundation drawing, with utility connections in the right places.
7. Delivery and set. Trucks, crane and crew on the same day; the house is secured and weather-sealed immediately.
8. Finishing on site. Joining the modules, roofing and exterior details at the seams, utility hook-ups, stairs, decks and landscaping.
9. Inspections and occupancy. Energy testing, final plumbing and electrical, professional sign-offs, and the occupancy permit.

Permits: what the municipality will ask for

Requirements vary by municipality, so always check with yours. As an example, the District of North Vancouver’s single-family checklist asks for:

• A topographic survey by a BC Land Surveyor, and a full drawing set (site plan, floor plans, elevations, section and foundation plan)
• Structural drawings sealed by a professional engineer, and a building envelope design by a registered professional
• Geotechnical and stormwater reports signed by an engineer, and an arborist report
• An energy report from a Certified Energy Advisor showing BC Energy Step Code Step 5, or Step 4 with Emissions Level 3
• BC Housing new home registration (or the applicable exemption), and Letters of Assurance from each registered professional

For a factory-built home, expect the municipality to also want the CSA certification number, the manufacturer’s drawings matched to the energy report, and an engineer’s design for how the house is anchored and connected on site. The Manufactured Housing Association of BC notes that the factory design must still meet local requirements, such as snow, wind and seismic loads.

Crane day: where prefab projects are won or lost

• Access first. Have a crane company walk the lot before you commit to a manufacturer: street width, turning room, overhead power lines, trees and slope all matter.
• Permits for the street. A large crane may need a street-use permit and traffic control. Work near power lines may need arrangements with BC Hydro well in advance.
• Foundation accuracy. Anchor points must match the house exactly. Having the foundation surveyed and checked before shipping avoids a very expensive wait on set day.
• Weather and damage. Plan a backup day, seal the house the same day it’s set, and inspect and photograph every piece on arrival before signing the delivery slip.

A realistic timeline

For a small (roughly 1,000 to 1,500 sq ft) prefab home, plan on around 9 to 12 months from first planning to move-in. The house itself may only be on site for the last two to three months; design and permitting take most of the time. These are typical estimates, and permit times vary the most.

What it costs, approximately

Costs depend heavily on the manufacturer, the finish level and the lot. The ranges below are published Canadian figures from one modular builder (Ontario-based). Expect Metro Vancouver, and especially sloped North Shore lots, to run higher because of site conditions, engineering, municipal fees and BC’s energy requirements.

Questions to ask before you commit

• Is the home certified to CSA A277, and has the manufacturer delivered in the Lower Mainland before? Can you see a finished one?
• Exactly what’s included in the price, and what’s left for the site?
• What are the deposit terms, the delivery window, and who pays for transport damage?
• Does the design already meet your municipality’s energy step and local structural loads?
• Who warranties what? The manufacturer usually covers the factory-built house; the site work needs its own warranty.
• Can a truck and crane actually reach your lot, and what will that cost?

Related reading

• How long it takes to build a custom home in Vancouver or Burnaby
• BC’s 2-5-10 home warranty explained
• Custom home builder in Vancouver
• Design and build services