Home Addition Costs Across Canada
National Average
$91,069 – $151,190
Based on 62 data points across 3 provinces
Detailed Cost Breakdown
Specific costs by job type, extracted from industry sources across Canada.
Total Project Costs
| Job Type | Low | High | Sources |
|---|---|---|---|
| Laneway House Construction | $225,000 | $275,000 | 2 |
| Single Storey Addition | $80,000 | $120,000 | 2 |
| Four Season Sunroom | $35,000 | $85,000 | 2(2 prov) |
| Bump Out Addition | $27,500 | $60,000 | 2 |
| Three Season Sunroom | $20,000 | $47,500 | 2(2 prov) |
| Structural Engineer Assessment | $825 | $2,000 | 2(2 prov) |
Per-Unit Costs
| Job Type | Low | High | Sources |
|---|---|---|---|
| Single Storey Addition | $250/sq ft | $400/sq ft | 3 |
| Second Storey Addition | $205/sq ft | $350/sq ft | 6(3 prov) |
| Inset Dormer | $130/sq ft | $170/sq ft | 2(2 prov) |
By Province
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