Secondary Suite Costs Across Canada
Typical project range
$65,089 – $111,376
Based on 367 data points across 4 provinces
Detailed Cost Breakdown
Specific costs by job type, extracted from industry sources across Canada.
Total Project Costs
| Job Type | Low | High | Sources |
|---|---|---|---|
| Garden Suite Build | $230,000 | $400,000 | 2(2 prov) |
| Laneway House Construction | $187,500 | $375,000 | 4 |
| Garden Suite Mid Range | $250,000 | $315,000 | 2(2 prov) |
| Garden Suite Basic | $190,000 | $250,000 | 2(2 prov) |
| Garden Suite Construction | $126,667 | $243,333 | 3 |
| Secondary Suite Construction | $80,000 | $200,000 | 2 |
| Above Garage Suite Basic Conversion | $115,000 | $185,000 | 2(2 prov) |
| Complete Secondary Suite Conversion | $70,000 | $170,000 | 2 |
| Basement Apartment | $80,000 | $150,000 | 2 |
| Secondary Suite Conversion | $66,667 | $146,667 | 3(2 prov) |
| Basement Apartment Conversion | $51,667 | $121,667 | 3(2 prov) |
| Legal Basement Suite | $60,000 | $120,000 | 2(2 prov) |
| Basement Secondary Suite | $59,688 | $116,563 | 16(3 prov) |
| Basement Underpinning | $48,000 | $114,000 | 5(3 prov) |
| Basement Secondary Suite Conversion | $53,667 | $111,333 | 15(4 prov) |
| Legal Basement Apartment Conversion | $50,000 | $105,000 | 2 |
| Basement Secondary Suite Full | $58,333 | $100,000 | 3(2 prov) |
| Basement Suite Conversion | $54,583 | $100,000 | 12(3 prov) |
| Basement Secondary Suite Complete | $46,667 | $91,667 | 3(3 prov) |
| Garage Conversion Secondary Suite | $45,000 | $83,333 | 3(2 prov) |
| Basement Inlaw Suite | $50,000 | $80,000 | 2 |
| Legal Basement Suite Complete | $42,500 | $80,000 | 2(2 prov) |
| Basement Suite Construction | $37,500 | $67,500 | 2(2 prov) |
| Secondary Suite Kitchen | $27,500 | $57,500 | 2 |
| Separate Entrance Install | $8,333 | $25,000 | 3(2 prov) |
| Suite Kitchen Install | $9,333 | $22,667 | 3(2 prov) |
| Basement Suite Kitchen Bathroom Finishes | $9,000 | $20,000 | 2(2 prov) |
| Fire Separation | $6,500 | $16,000 | 2(2 prov) |
| Exterior Entrance Construction | $6,000 | $15,667 | 3(2 prov) |
| Secondary Suite Entrance | $5,333 | $15,667 | 3(3 prov) |
| Fire Separation Upgrade | $5,667 | $15,000 | 3(2 prov) |
| Separate Entrance | $5,333 | $12,667 | 3(3 prov) |
| Secondary Suite Separate Entrance | $5,500 | $11,500 | 2(2 prov) |
| Fire Separation Basement Suite | $4,000 | $11,500 | 4(2 prov) |
| Fire Separation Assembly | $5,200 | $11,400 | 5(3 prov) |
| Architectural Drawings | $3,750 | $9,250 | 4(2 prov) |
| Basement Suite Electrical | $4,000 | $9,000 | 2 |
| Fire Rated Separation | $3,600 | $8,400 | 5(3 prov) |
| Fire Separation Install | $3,000 | $8,000 | 2(2 prov) |
| Egress Window Install | $3,000 | $7,000 | 2(2 prov) |
| Secondary Suite Drawings | $3,000 | $5,500 | 2(2 prov) |
| Structural Engineering | $2,500 | $4,500 | 2 |
| Structural Engineer Assessment | $1,200 | $2,600 | 5(4 prov) |
Per-Unit Costs
| Job Type | Low | High | Sources |
|---|---|---|---|
| Egress Window Install | $2731/unit | $6538/unit | 13(4 prov) |
| Fire Damper Install | $175/unit | $450/unit | 2(2 prov) |
By Province
British Columbia$78,206 – $130,950
New Brunswick$78,150 – $116,550
Ontario$57,583 – $105,975
Alberta$42,795 – $76,242
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