A home for your parents. More independence for an adult child. A smaller place for yourself without leaving the neighbourhood.
Those are different goals from replacing a property with several homes. Before comparing coach houses and multiplexes in West Vancouver, decide which problem you are trying to solve.
The most useful project is the one that fits your household, property and capacity to undertake the work.
What is the practical difference?
A coach-house proposal typically considers a separate dwelling alongside the main home. A multiplex proposal considers several dwellings within a broader development plan. Their suitability depends on the current rules for the address, physical site constraints and the intended ownership and use. For more on each route, see our pages on coach houses, multiplexes and townhouses and lot assembly in West Vancouver.
Do not assume that a housing-policy headline confirms the number, size or configuration of homes permitted on a particular lot. Check the District’s current small-scale multi-unit housing information and obtain address-specific advice.
Is there room in the zoning as well as in the garden?
An open backyard does not establish unused development capacity. The District’s published coach-house guidance calls for a review of available floor area and site coverage, including the conditions for any exemption. It also distinguishes proposals that require a form-and-character development permit from those that may be exempt.
Ask for a simple feasibility sketch and a calculation showing the existing house, proposed dwelling, access and outdoor space. Check the applicable approval route before commissioning detailed plans.
What about Bylaw 5446?
Council gave proposed Bylaw 5446 first, second and third readings on September 21, 2026. It is not yet adopted: it still needs approval from the provincial Ministry of Transportation and Transit before Council can adopt it, and the rules in force until then are the current ones. Check its status on the District's SSMUH page, and see Bylaw 5446 explained for what it would allow.
Have Planning confirm the rules currently in force for your address, including any applicable exemptions. A scheduled reading, proposed map or online calculator is not confirmation of an approved development.
First decide whether keeping the main house is a priority
If you like the existing house and want one additional home for family, preserving it may be central to the brief. Test whether an additional dwelling can fit without making access, privacy or outdoor space work poorly for either household.
If the existing building no longer suits your needs, evaluate a broader redevelopment concept. That requires a different conversation about scope, disruption and the arrangement of the whole property.
Avoid deciding by unit count alone. A home that is theoretically possible may still be an uncomfortable fit for the people who will use it.
Compare the options through five decisions
| Your priority | Coach-house questions | Multiplex questions |
|---|---|---|
| Family | Can two households have privacy and useful proximity? | Which household needs which home, now and later? |
| Existing house | Can it remain with workable access and services? | What is retained, altered or removed? |
| Outdoor space | How will the garden be shared or divided? | Does each home have suitable outdoor space? |
| Project scale | What supporting work is needed beyond the small building? | Can you support the full redevelopment program? |
| Long-term use | How might the occupants’ needs change? | What ownership and occupancy arrangements require advice? |
Use sketches to test the answers. Written intentions are easier to agree on when everyone can see where the entrances, windows and outdoor spaces would be.
A small building still needs a complete project budget
A coach house can be compact while requiring significant supporting work. Ask about surveys, consultant input, approvals, services, access and landscaping as well as the building itself.
For a multiplex, assess the whole development. Do not multiply a generic single-home budget by the proposed unit count and assume the result reflects the site.
Both comparisons need clearly identified assumptions. If rental or sale proceeds are part of the decision, have the appropriate independent advisers assess them. The construction budget should not rely on optimistic income assumptions supplied to make the project look easier.
Design for relationships, not just floor area
For a family project, discuss the awkward questions early:
- Can each household arrive without passing through another household’s private space?
- Where will visitors go?
- How will deliveries, bins and maintenance work?
- What happens if mobility needs change?
- How much sharing does everyone actually want?
A separate front door does not answer all of those questions. Entrances, sightlines, storage and exterior circulation need to be planned as part of the home.
Establish the planning route before detailed design
West Vancouver’s coach-house guidance advises discussing a proposal with Planning staff before preparing detailed plans. Use current guidance for the particular form you are considering.
Eurohouse’s West Vancouver lot-density tool can help start the conversation. Treat an online result as preliminary information, not approval or a substitute for reviewing the current bylaw and property constraints.
Frequently asked questions
Is a coach house always the less expensive option?
It is a different scope. Compare the building and all supporting work, especially when access or servicing is difficult.
Can we assume additional homes can be sold separately?
No. Establish the applicable planning, ownership and legal requirements with the appropriate advisers before making separate-sale assumptions.
Can we explore both options before deciding?
Yes. A preliminary comparison can identify which option deserves further investigation before you commission detailed design.
Explore what would work for your family
Send the address, a brief description of the existing house and who you hope to accommodate. Include whether retaining the main home matters to you.
Book a free initial property review with Eurohouse. We can discuss the potential routes and the questions to resolve next.
Planning sources checked September 2026. Confirm current rules and approvals for the specific address before proceeding.