Every cost guide for this trade quotes a per-square-foot rate and stops. The rate is the easy part. What decides your final number is how much of the job is edge — and a widening is almost all edge.
The rates
| Tier | Installed, per sq ft | What you get |
|---|---|---|
| Basic | $18–22 | Standard concrete paver, straightforward access, simple rectangle |
| Mid-range | $25–30 | Better paver, borders, some cutting, proper base depth for a driveway |
| Premium | $30–40+ | Natural stone or premium lines, curves, steps, drainage work |
For reference, paver material alone runs roughly $3–7 per square foot for basic concrete, $7–15 for premium concrete and $15–30 or more for natural stone. That gap is why two quotes for "the same" driveway can differ by thousands.
What a widening actually comes to
| Scope | Typical area | Indicative total |
|---|---|---|
| Narrow strip down one side | 120–200 sq ft | $3,000–5,500 |
| Full single-car widening | 200–350 sq ft | $4,000–9,000 |
| Widening plus a parking pad | 350–550 sq ft | $7,000–15,000 |
| Full driveway replacement, for comparison | 600–900 sq ft | $6,000–12,000+ |
Why small widenings cost more per foot
Several costs are fixed no matter how narrow the strip is:
- Mobilisation. Getting a crew, a plate compactor, a saw and a dump trailer to your house costs the same for 150 square feet as for 800.
- Excavation and disposal. A driveway base wants real depth, and the spoil has to go somewhere. Disposal is charged by volume, not by how tidy the shape is.
- Cutting and matching. A widening has a long seam against existing work. Every paver along it gets cut, and matching an existing colour that has weathered for a decade is slow, fussy work.
- Edge restraint. The new outer edge needs proper restraint or it will spread. That is linear cost, and a narrow strip has almost as much edge as a wide one.
The line items people forget
- Access permit fee — set by the City, due at application, and non-refundable. Budget it as a real cost and confirm the current figure with the City. (Placeholder to fill in: PERMIT_FEE_TODO.)
- Road cut permit — a second permit, required after the access permit is approved, before work in the right of way.
- Culvert work — in rural and village areas, widening an entrance usually means extending or rebuilding the culvert, which needs its own permit and is a genuine excavation job. More on rural entrances →
- Curb cut — where there is a curb, widening the access means altering it. Curb cuts →
- Utility locates — Ontario One Call before anyone digs. Free to request, but it takes time, so it belongs in your schedule if not your budget.
- Drainage. More hard surface means more runoff. Sometimes that is free to solve, sometimes it is a swale or a soakaway.
If you build the widening in permeable pavement and your address sits in a Priority Stormwater Retrofit Area, the City's Rain Ready Ottawa program rebates up to $5,000. On a typical widening that can cover most of the job. It has to be approved before you start — the rebate is not retroactive.
How to compare two quotes properly
Ask all three of these and the cheap quote often stops being the cheap quote:
- How deep is the granular base, and is it compacted in lifts? Driveway base is not patio base. This is the single biggest hidden difference between prices.
- Who files the access permit, and is the fee in your price?
- Do you hold a City of Ottawa hardscaping contractor licence? It is mandatory for any business paving an access here.
Get a real number for your driveway
Send the frontage and rough dimensions and we'll come back with a range, then a firm written price after a measure.