How much does it typically cost per unit when a townhouse complex in Ottawa repaves the common driveway?

Townhouse complex driveway repaving in Ottawa typically costs $4.00 to $7.00 per square foot for full replacement, with economies of scale reducing the per-unit cost significantly compared to individual residential driveways. For a typical 20-unit complex with 2,000 to 4,000 square feet of common driveway area, total project costs range from $15,000 to $35,000, translating to roughly $750 to $1,750 per unit depending on the scope and complexity.

Project scope dramatically affects pricing. Full removal and replacement with proper base preparation costs more but provides a 20 to 25-year lifespan in Ottawa's harsh climate. This involves excavating the existing asphalt, addressing any base failures, installing fresh Granular B sub-base (minimum 300mm) and Granular A base (150mm) to handle Ottawa's 1.2 to 1.5-metre frost depth, then placing a binder course and surface course of hot-mix asphalt. Resurfacing over stable existing pavement costs $2.50 to $4.50 per square foot but only works if the underlying base is sound and drainage is adequate.

Ottawa's extreme climate makes proper base preparation non-negotiable for multi-unit properties. Townhouse complexes experience heavier traffic than single-family driveways, with multiple vehicles, delivery trucks, snow plows, and garbage collection creating more stress on the pavement structure. The 60+ degree temperature swings between Ottawa's -30°C winters and +35°C summers, combined with 50+ freeze-thaw cycles annually, will quickly expose any shortcuts in base depth or compaction. Clay soils prevalent in areas like Barrhaven, Orleans, and Riverside South require geotextile fabric and deeper granular base to prevent heaving and settling.

Economies of scale benefit larger projects significantly. Mobilizing paving equipment, ordering hot-mix asphalt, and coordinating crews becomes more cost-effective per square foot as project size increases. A 4,000 square foot townhouse complex driveway might cost $5.50 per square foot, while an individual 600 square foot residential driveway could cost $8.00 per square foot for equivalent work. However, complexes often require more complex drainage solutions, catch basins, and coordination with underground utilities, which can offset some savings.

Timing and logistics add complexity to multi-unit projects. Townhouse driveway repaving typically requires phased construction to maintain resident access, temporary parking arrangements, and coordination with the property management company or condo board. Work must be scheduled during Ottawa's limited paving season (May through October) when hot-mix asphalt can be properly compacted. September is often ideal for complex projects as weather is stable and contractors have more availability than the busy spring season.

Additional costs to consider include drainage improvements, catch basin adjustments, line painting, and potential utility relocations. Many older townhouse complexes have inadequate drainage that becomes apparent during excavation, requiring French drains or additional catch basins. Electrical conduits, gas lines, or cable installations may need protection or relocation. Factor an additional 10 to 20 percent contingency for unexpected conditions commonly discovered in multi-unit projects.

The condo corporation or property management should obtain at least three detailed quotes from experienced commercial paving contractors. Residential driveway contractors may not have the equipment or experience for larger multi-unit projects. Verify WSIB coverage, liability insurance, and references from similar townhouse or condominium projects. The lowest bid often reflects inadequate base preparation that will fail within 5 years, requiring expensive tear-out and replacement that far exceeds the initial savings.

Need help finding commercial paving contractors experienced with multi-unit residential projects? Ottawa Driveways can match you with professionals through the Ottawa Construction Network who specialize in townhouse complex and condominium driveway work.

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Looking for experienced contractors? The Ottawa Construction Network connects Ottawa homeowners with qualified professionals:

• Luxe Painting and Renovations
• JC Carpentry
• Prime Property Works
• Geerts Roofing Inc
• Floor-2-Wall Inc