Home additions in Vancouver
More room without moving: new bedrooms, ensuites and living space added to your home, with design, permits and construction handled together.
Home additions in Vancouver: quick answers
Short answers to the questions we hear most.
- How much does a home addition cost in Vancouver?
- It depends on what is added. Recent QUAY additions: an open loft study in West Vancouver turned into a bedroom with a new ensuite for about $58,000 before GST with permits included, and a new accessible ground-floor bathroom in Shaughnessy for about $42,000. For larger additions, local builders publish roughly $350–$600 per square foot; see our home addition cost guide.
- How long does a home addition take?
- The West Vancouver bedroom and ensuite addition was on site from October to December 2025, after permit drawings. Larger structural additions take longer and are scheduled once drawings and permits are in place.
- Does a home addition need a permit?
- Yes. New rooms, bathrooms and structural changes need building permits, and usually plumbing and electrical permits. We prepare drawings and handle the applications; the West Vancouver project was permitted through the District of West Vancouver.
- How is it priced and guaranteed?
- You get a fixed-price proposal before construction starts, and completed work is backed by our 365-day workmanship warranty.
An addition changes how a home works
A new bedroom, an ensuite where there was no plumbing, or space taken from a loft, closet or underused room can give a growing household what it needs without the cost of moving.
QUAY Construction designs and builds additions across Vancouver and the Lower Mainland, planned with structure, plumbing and permits in mind from the first visit.
Back to residential renovationsTypes of home additions
We assess structure, plumbing routes and permits on site before recommending an approach.
New bedrooms
Open lofts, studies or large rooms enclosed into private bedrooms, with doors, closets and light planned in.
Ensuites and bathrooms
New bathrooms where there was no plumbing, including ensuites and accessible ground-floor bathrooms. See bathroom additions.
Converted space
Closets, hallways and part of an adjoining room turned into usable rooms.
Basement suites
A self-contained legal basement suite inside the existing home.
Structural changes
Wall changes, openings and additions planned with engineering where walls are load-bearing.
Permits and drawings
Site measurements, permit drawings, applications and inspections.
Structure and plumbing decide what is possible
Where a new room can go depends on what the floor and walls can carry and how drains and vents can reach a new bathroom. Load-bearing walls need engineering; plumbing far from the main stack may mean opening floors or ceilings below.
We explain the options and what each involves before you commit.
An open loft study turned into a bedroom with an ensuite.
The top floor of this West Vancouver home was an open study at the head of the stairs. The owners wanted a proper bedroom with its own bathroom.
- New walls: framed up from the stairs to enclose the room, with a new swing door and closet
- Light kept: a tall glass opening so stairwell light still reaches the bedroom
- New ensuite: built where there was no plumbing, with a Schluter shower base and waterproofing
- Permits: drawings and permits through the District of West Vancouver
- Budget: about $58,000 before GST, including design, permits and two small changes
- On site: October to December 2025
Additions we have built.
Real budgets from completed QUAY projects, before GST unless noted.
View Renovation ProjectsWest Vancouver bedroom and ensuite
An open loft study enclosed into a bedroom with a new ensuite, about $58,000 before GST with permits, completed December 2025.
Shaughnessy accessible bathroom
A closet converted into a new ground-floor bathroom with a curbless shower and grab bars for a parent moving in, about $42,000 (2023).
Bathroom additions
New ensuites, powder rooms and basement bathrooms, and how plumbing decides where they can go.
Home addition cost guide
Published Vancouver ranges for bump-outs, rear additions and second storeys, plus design, engineering and permit costs.
Planned as a whole. Finished in the details.
New walls, floors, trim and paint are matched so the addition looks like it was always there.
One addition. One accountable team.
Planning, pricing, approvals and construction are coordinated through one renovation process rather than managed as isolated pieces.
One Point of Contact
Design, trades, materials and scheduling are coordinated by QUAY, so you are not managing separate contractors or chasing updates.
Fixed-Price Proposal
Scope and pricing are established before construction so you know what is included and what the renovation is expected to cost.
Plan Before Construction
Approvals, materials, trades and sequencing are settled before demolition starts.
365-Day Warranty
Our workmanship is backed by QUAY's 365-day We-Fix-It-Free warranty after project completion.
Local service. Across the region.
We plan and build additions throughout Vancouver, the North Shore and the surrounding municipalities.
All service areasClear before construction. Organized through completion.
Each stage is defined before the next begins so decisions, approvals and trades stay connected.
Discovery Call
We discuss your home, priorities, timeline and expected investment to decide the right next step.
On-Site Consultation
We review the space, measurements, building conditions and the approvals the project will need.
Scope & Proposal
The work is defined through a detailed scope, selections, pricing and schedule before anything is opened up.
Construction
Trades, materials and inspections are coordinated through one schedule with consistent communication through completion.
Plan the addition. Understand the investment.
Addition cost is driven by structure, plumbing and permits, not just square footage.
Recent QUAY additions came in at about $42,000 and $58,000. Larger structural additions cost more; local builders publish roughly $350–$600 per square foot, and design, engineering and permits for a Vancouver addition typically add $11,500–$35,000 by published ranges. We define the scope with you and give you a fixed-price proposal before construction begins.
Home addition questions answered
What does a home addition cost per square foot in Vancouver?+
Local builders publish roughly $350–$600 per square foot in 2026, with complicated projects higher. Our home addition cost guide breaks this down by type.
Can I add a bedroom without building out?+
Often. Open lofts, studies and large rooms can be enclosed into bedrooms, as in our West Vancouver project, which is far less costly than a structural addition.
Can I add a bathroom where there is no plumbing?+
Usually, if drains and vents can be connected. The West Vancouver ensuite was built where there was no plumbing.
Do I need an engineer?+
For load-bearing walls and structural additions, yes. We coordinate engineering and drawings as part of the permit process.
Do you renovate older and character homes?+
Yes. We check older homes for outdated wiring, old plumbing and hazardous materials so these are part of the plan instead of a surprise mid-project.
Does QUAY Construction provide a warranty?+
Yes. QUAY Construction provides a 365-day workmanship warranty following completion.
Thinking about adding space?
Tell us about your home, your priorities and when you'd like to renovate. We'll help you determine the right next step.