Renovations
Coquitlam Basement Suite Renovations — Real Costs in 2026
A legal basement suite in Coquitlam typically costs $85,000–$160,000 in 2026, or roughly $130–$210 per square foot depending on existing ceiling height, egress, and whether plumbing rough-in already exists. Permits, fire separation, and egress windows are the items that most often blow the budget.
Coquitlam has some of the most renovation-friendly secondary suite rules in the Lower Mainland, and rental demand is strong from SFU and Burquitlam SkyTrain commuters. Here's what a legal basement suite actually costs in 2026.
All-in budget ranges
- ·Lipstick reno (existing suite refresh): $25,000–$45,000
- ·Standard new legal suite (700–900 sq ft): $75,000–$130,000
- ·Full gut + new suite with separate entrance: $130,000–$200,000+
Where the money goes
| Scope | Typical cost |
|---|---|
| Permits, drawings, City of Coquitlam fees | $3,500–$7,500 |
| Demo & disposal | $3,000–$8,000 |
| Framing & insulation | $8,000–$18,000 |
| Plumbing (kitchen + bathroom + laundry) | $9,000–$18,000 |
| Electrical + separate panel | $7,000–$15,000 |
| Drywall + paint | $7,000–$14,000 |
| Flooring (LVP suite-grade) | $4,000–$9,000 |
| Kitchen cabinets + counters + appliances | $12,000–$25,000 |
| Bathroom | $9,000–$18,000 |
| Finishing carpentry (trim, doors, closets) | $5,500–$12,000 |
| Egress window + separate entry | $4,000–$10,000 |
Things Coquitlam specifically requires
- ·Egress window in every bedroom
- ·Interconnected smoke + CO alarms
- ·One-hour fire-rated ceiling separation
- ·Separate hot water tank (in most cases)
- ·Off-street parking for the suite tenant
ROI math
A legal Coquitlam suite typically rents for $1,800–$2,400/month in 2026. At $100K build cost, that's a 22–28% gross yield — one of the strongest renovation ROIs available in the Lower Mainland.
Why finishing carpentry matters in suites
Tenants notice trim, doors, and cabinet quality more than landlords think. A suite with proper casing, solid-core doors, and real cabinetry rents faster and holds rent better than one with builder-basic finishes.
Thinking about a basement suite in Coquitlam? Get a free quote — we manage the full build including permits.
Frequently Asked
Questions we get asked
How much does a legal basement suite cost in Coquitlam?
Expect $85,000 to $160,000 for a legal Coquitlam basement suite in 2026, or roughly $130 to $210 per square foot. Existing ceiling height, egress windows, and available plumbing rough-in are the biggest variables.
What is required for a suite to be legal in Coquitlam?
A legal secondary suite needs a building permit, minimum ceiling height, compliant egress windows, fire separation between units, interconnected smoke alarms, dedicated heating and ventilation, and separate parking as required by the zoning bylaw.
How long does a basement suite renovation take?
Once permits are issued, construction usually takes 10 to 16 weeks. Permit review itself commonly adds two to four months in Coquitlam, so plan for a six to nine month total timeline.
Does a legal suite increase home value?
Yes. A legal, permitted suite adds both rental income and resale value, and lenders will count a portion of documented suite income when qualifying a mortgage — unpermitted suites usually get neither benefit.