Kanata, west Ottawa
Decks and porches in Kanata
A rear deck is the simplest way to add outdoor space to most Kanata homes, and many decks from the 1980s and 1990s may be due for new footings, framing or boards. Raised decks need a building permit, and lots near the Carp River or its wetlands can need conservation authority review.
Typical raised deck in Kanata, with HST $21,200 to $27,800 $88 to $116 per sq ft for 240 sq ft
Stock photoWhat decks and porches 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.
| Type of deck or porch | Pressure-treated decking | Cedar decking | Composite decking |
|---|---|---|---|
| Ground-level deck200 sq ft | $9,900 to $13,100$50 to $66 per sq ft | $12,500 to $16,400$63 to $82 per sq ft | $15,600 to $20,500$78 to $103 per sq ft |
| Raised deck240 sq ft | $16,400 to $21,500$68 to $90 per sq ft | $21,200 to $27,800$88 to $116 per sq ft | $27,900 to $36,600$116 to $153 per sq ft |
| Upper-level deck200 sq ft | $20,300 to $26,700$102 to $134 per sq ft | $25,500 to $33,400$128 to $167 per sq ft | $32,700 to $42,800$164 to $214 per sq ft |
| Covered front porch100 sq ft | $18,800 to $24,500$188 to $245 per sq ft | $23,500 to $30,800$235 to $308 per sq ft | $30,300 to $39,700$303 to $397 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 decks and porches.
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 decks and porches 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.
Beaverbrook heritage study
Council approved a Heritage Conservation District study for Beaverbrook in early 2026. The City says nothing changes for owners now. If a district is designated later, exterior work such as additions, porches and window replacement would follow a district plan and some of it would need a heritage permit.
Decks and porches
An attached deck needs a building permit when its surface is more than 600 mm (about 24 inches) above the ground, or when it is the main way into the house. A freestanding deck needs one when it is larger than 10 square metres (about 108 sq ft) and more than 600 mm up. Porches generally need a permit when they are larger than 10 square metres.
Trees
On urban lots of one hectare or less, the City's Tree Protection By-law requires a permit to remove or injure a distinctive tree, which the current by-law sets at 30 cm or more across at chest height. Footings and trenches near big trees are planned around their roots. The thresholds have changed in recent years, so we check the by-law in force.
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 deck or porch, priced task by task. Open it, then change it to suit a house in Kanata.
Good to know
How much does a deck or porch cost in Kanata?
A cedar raised deck of about 240 sq ft typically comes to $21,200 to $27,800 with HST, based on published Ottawa and Ontario price guides checked October 2026. With pressure-treated decking the same job is about $16,400 to $21,500; with composite decking, about $27,900 to $36,600. 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.
Does the Beaverbrook heritage study affect my renovation?
Not today. The City says the study designates nothing and owners need do nothing now. If a district is designated in future, exterior changes such as additions, porches and window replacement would have to follow the district plan. Interior work like kitchens and bathrooms is not what a district plan controls.
Do I need conservation authority approval in Kanata?
Only if your lot is in a regulated area, mainly along the Carp River, its tributaries and larger wetlands. There an addition or alteration needs a Mississippi Valley Conservation Authority permit before the City building permit. We check the mapping for your address early.
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 deck or porch 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.