Canadian suite & ADU planning reference

Can this property legally hold another home?

Secondary suites, basement units, garden suites, laneway homes and ADUs—mapped through provincial frameworks and municipal permit routes.

100 suite/ADU cities10 provincial frameworksHousing permit source routesSep 14, 2026 housing sources reviewed
BC eligibility baseline

Three, four or six units? Start with the provincial framework.

For BC properties, the new checker translates the SSMUH lot-size and frequent-transit thresholds without pretending it can approve a parcel.

Try the BC planning checker →
It refuses false certainty
3 / 4 / 6
provincial baseline
Local
source shown with result
Parcel
approval still required
Before drawings

Prove the extra unit works on this property.

01

Confirm permission

Province-wide housing changes still leave property-specific zoning questions.

02

Choose the unit form

Internal suite and detached ADU rules can diverge quickly.

03

Build the file

Plans, permits, inspections and occupancy records matter as much as the finished room.

Change log

Freshness that says what actually changed.

Verified program note

Barrie, ON

Barrie’s current additional-residential-unit material was rechecked and the local guide notes the city’s 2026 permit-fee incentive while keeping zoning and building-permit approval separate.

Source review

Canada-wide

All 100 suite/ADU city routes were rechecked. Dedicated local housing sources are distinguished from general municipal planning or permit routes.

See the full update log →