Kanata, west Ottawa
Secondary suites in Kanata
The City allows a secondary suite in detached, semi-detached and townhouse homes, so Kanata's basements are realistic candidates. The work is mostly about the code: ceiling height, a separate entrance, fire separation between units, escape windows and alarms, all under a building permit.
Typical secondary suite in Kanata, with HST $104,900 to $140,700 $150 to $201 per sq ft for 700 sq ft
AI imageWhat secondary suites cost in Kanata
Typical project totals and the price per square foot, with HST, by type of job and finish level, priced for suburban Ottawa. Choose a row to open it in the estimator with Kanata prices.
| Typical size | Basic | Mid-range | Premium |
|---|---|---|---|
| Secondary suite700 sq ft | $85,500 to $114,700$122 to $164 per sq ft | $104,900 to $140,700$150 to $201 per sq ft | $133,900 to $179,600$191 to $257 per sq ft |
Prices are estimates based on published Ottawa and Ontario price guides, checked October 2026. They are not an offer. A firm written quote follows a site visit. Prices for Kanata include about 2% over central Ottawa for travel and delivery.
Homes in Kanata
What the local housing means for secondary suites.
Beaverbrook, whose first street went in in 1964, and Glen Cairn are the original neighbourhoods from the 1960s. The Chimo Drive area of Katimavik followed in the early to mid 1970s, the rest of Katimavik-Hazeldean and the first parts of Bridlewood in the 1980s and early 1990s, and Morgan's Grant from the late 1980s, with a northward expansion in the mid to late 1990s. Kanata Lakes, Marchwood and the outer neighbourhoods first appear in census counts from 1991 on.
- Kitchens and bathrooms in the 1960s and 1970s neighbourhoods are often original or on their second round, so layout changes and updated wiring and plumbing come up.
- Homes from the late 1980s and the 1990s are at the age when builder-grade kitchens, bathrooms and lightly finished basements get replaced.
- Basement suites are a realistic project in detached, semi-detached and townhouse homes, with a building permit and the Building Code requirements for height, exits and fire separation.
Permits and approvals
What to check in Kanata before secondary suites work starts. Rules change, so we confirm what applies to your address.
Mississippi Valley Conservation Authority
The Carp River starts in Kanata, and the Mississippi Valley Conservation Authority manages its watershed and has been updating its floodplain maps, which name Kanata and Hazeldean. Additions and alterations in a regulated area (the floodplain plus a 15 m limit, and larger wetlands plus 30 m) need an MVCA permit before the building permit, which MVCA says takes about 30 days.
Building permits
The City generally requires a building permit to finish a basement, move or remove walls, alter plumbing, add or enlarge windows and doors, and build an addition. Replacing kitchen cabinets without moving plumbing fixtures usually does not need one. Electrical work is inspected separately by the Electrical Safety Authority.
Secondary suites
A suite inside an existing house needs a building permit and has to meet the Building Code for ceiling height, exits, fire separation, windows and alarms, with electrical inspected separately. Basement suites have no size limit, the suite needs its own entrance (not a new door in the front wall), and new parking cannot go in the front yard. On lots with City water and sewer, current rules allow more than one additional unit on most residential lots, so we check what your lot can hold.
Zoning
Additions and larger decks have to meet the zoning setbacks, height and lot coverage for your lot. Most of Ottawa's new Zoning By-law 2026-50 is in force (the parts not under appeal took effect from March 2026), and where a provision is still under appeal the stricter of the old and new rules applies, so we check the rules for your address before design starts.
A sample quote
A typical Ottawa secondary suite, priced task by task. Open it, then change it to suit a house in Kanata.
Good to know
How much does a secondary suite cost in Kanata?
A mid-range secondary suite of about 700 sq ft typically comes to $104,900 to $140,700 with HST, based on published Ottawa and Ontario price guides checked October 2026. With basic finishes the same job is about $85,500 to $114,700; with premium finishes, about $133,900 to $179,600. Size, the state of the house and what you add all move the number, so use the estimator for your own project. A firm quote follows a site visit.
Do you work across all of Kanata?
Yes, from Beaverbrook and Glen Cairn to Bridlewood, Morgan's Grant, Kanata Lakes and the newer neighbourhoods. Kanata addresses are priced at suburban rates in the estimator, about 2% over central Ottawa.
Planning a secondary suite in Kanata?
Price it in the estimator with Kanata rates, then send it to us. We confirm the numbers on a site visit and follow up with a written quote.