Home/Cities/British Columbia/Squamish
Squamish, BC suite & ADU rules

Permission first. Construction second.

Squamish permits secondary suites, accessory dwelling units and small-scale multi-unit housing through zone-specific rules. Start with the property lookup, then confirm the mapped zone and site conditions before design or construction.

Main home
Secondary / ADU
One property · more than one approval layer
Interactive property lookup

Enter your address and see what your property may allow.

Select a B.C. property to check the parcel, available zoning and suite-planning data.

Enter a house number and street name to see matching B.C. addresses.

Before relying on this result, verify the property details.

The automated checker cannot confirm all zoning amendments, overlays, lot restrictions, servicing or building permits. Free human property-review requests are currently paused.

See the official verification steps →
Can’t find your address?

Use the manual property check below.

Start with the municipality and parcel area. The manual check stays open here, but the questions are split into 4 short steps so you do not have to scroll through everything at once.

Manual property check

Check the lot using what you know.

Four short steps. Answer what you know and choose “Not sure” for anything you have not checked.

Step 1 of 4Property basics
Step 1: Property basics

Use the parcel area from your property record, assessment or municipal mapping tool.

This does not change the provincial unit-count math. It only tailors the next-step checklist in your result.

Step 2: Basic zoning checks

If you do not know the zoning, choose Not sure.

What does this mean?

If you have never checked this on a municipal map or plan, choose Not sure.

Why are we asking?

Think houses, duplexes or small multiplexes. If you only know the zone code, choose Not sure.

Step 3: Possible exceptions

This is about subdivision rules, not the size of your current lot. Choose Not sure unless you know.

A TOA is a special mapped area around major transit. If you have never checked the map, choose Not sure.

Choose Yes only if the municipality has specifically confirmed it. Otherwise choose Not sure.

Step 4: Frequent bus check

If you have not checked an official map, choose Not sure.

Private by default: the calculation runs in your browser. No name, phone number or email is required.

Calculator loading…

Municipal rules · reviewed September 20, 2026

Squamish: secondary suites, ADUs and small-scale multi-unit housing

Squamish permits secondary suites and accessory dwelling units through its zoning bylaw and has updated R-1 through R-5 residential zones for small-scale multi-unit housing. The exact principal form and total unit combination still depend on the mapped zone and site conditions.

Secondary suite

  • Secondary suites are permitted in qualifying single-unit and two-unit dwellings under the current zoning framework.
  • The suite remains part of the same real-estate entity as the principal dwelling and requires the applicable building-permit/occupancy path.
  • The principal dwelling type and the zone’s total-unit limit still matter when combining a suite with other housing forms.

Accessory dwelling unit (ADU)

  • ADUs are permitted in zones that permit a single-unit dwelling and include detached coach, carriage and laneway-style forms.
  • One ADU per parcel is the standard accessory path; floor area, setbacks, height and flood/site rules still apply.
  • Confirm the current zone and whether the proposed principal-dwelling/accessory-unit combination stays within that zone’s total unit cap.

Duplex, triplex and fourplex

  • R-1 permits single-unit, duplex, triplex and fourplex principal forms and allows up to five total dwelling units.
  • R-2 permits single-unit and duplex forms with a two-unit total cap; R-3 adds triplex with a three-unit total cap.
  • R-4 and R-5 permit single-unit, duplex, triplex and fourplex principal forms, subject to the current zone/site standards.

Squamish suite / ADU FAQ

Do I need a permit?

Yes. Creating or legalizing a suite or ADU requires the applicable District permit and inspection/occupancy path; zoning permission and Building Code compliance are separate checks.

Can I have a secondary suite or ADU?

Often, but the principal dwelling and current zone matter. Squamish permits these accessory forms through its zoning bylaw, subject to the applicable unit cap and site standards.

Can I build a duplex, triplex or fourplex?

Possibly. The current R-1 through R-5 residential zones allow different principal forms. Confirm the exact property zone before relying on a unit count.

Can I combine a fourplex with another unit?

Some Squamish zones allow accessory units in addition to principal units, but the total-unit cap and the selected principal/accessory combination must fit the exact zone. Check the current zone schedule before design.

How this guide was verified

Guide verification: Targeted municipal-source claim check recorded. Selected citywide guidance or adoption facts were checked against an identified official page on October 12, 2026. This is not a complete current-bylaw, amendment-map or parcel certification.

Property confidence: Not assessed. City-wide guidance does not confirm permission for a particular parcel. Check official zoning, overlays and permits. How verification works →

Official Squamish sources

Reviewed September 20, 2026. Confirm the current property zoning, site constraints, servicing and permit requirements before design or construction.

V69.62 targeted primary-source review · October 12, 2026: Squamish says R1 zoning was adopted June 2024 and R2-R5 February 18, 2025; suites and detached units count toward the zone total, which differs between R2 (two), R3 (three) and R1/R4 (up to five). Official municipal record ↗ Still unverified: Check the current mapped property district, flood hazard and setback rules, and later amendment schedule; these figures are not an address result. No comprehensive current-by-law signoff or parcel approval is claimed.