Building a basement suite is one of the most practical and profitable home improvements a homeowner can make. Whether you’re looking to create a mortgage helper, make space for extended family, or increase your property value, a well-designed suite brings long-term benefits.
At Home Affairs, we specialize in legal basement suite construction in compliance with BC Building Code and municipal regulations. Here’s what to know in 2025.
Average Cost of a Basement Suite in 2025 (Canada)
The average cost to build a legal basement suite ranges between $45,000 and $90,000+ depending on the space, finish level, and code requirements.
Key Factors That Impact Price:
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Size of basement (square footage)
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Plumbing & electrical work required
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Separate entrance construction
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Kitchen & bathroom additions
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Permits & zoning compliance
Small Suite (500–700 sq ft): $45,000–$60,000
Medium Suite (800–1,000 sq ft): $60,000–$75,000
Large/Luxury Suite (1,100+ sq ft): $75,000–$100,000+
What’s Included in a Basement Suite Build?
When you build a suite with Home Affairs, your project may include:
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Full kitchen with cabinets & appliances
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Bathroom with toilet, shower, and vanity
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Living room and one or more bedrooms
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Separate laundry (optional)
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Separate private entrance
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Soundproofing & fire separation as required
Is a Permit Required for a Basement Suite?
Yes. In most BC municipalities, a legal suite requires:
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Building permits
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Electrical & plumbing permits
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Fire separation upgrades
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Zoning bylaw compliance
We help homeowners navigate the entire permit process to ensure compliance and long-term peace of mind.
Benefits of Building a Basement Suite
Rental Income — Earn $1,200–$2,000/month depending on your area
Boost Property Value — Great return on investment at resale
Multigenerational Living — Give family members their own space
Better Space Utilization — Maximize unused square footage
Why Choose Home Affairs for Basement Suite Projects?
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We handle permits, design, and construction
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Licensed trades and quality workmanship
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Transparent quotes and project timelines
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Code-compliant, comfortable, and beautiful spaces
Build Smarter, Earn More
Turn your basement into something valuable. Contact Home Affairs today for a free basement suite consultation and estimate — and let’s explore how to make your space work harder for you.