Legal Basement Apartment Contractors
Permits • Fire Code • Egress Windows • Full Turnkey Build
What Makes a Basement Apartment Legal ?
A legal basement apartment must meet specific Ontario Building Code and municipal requirements to ensure safety, proper living conditions, and full permit approval. This includes fire separation, minimum ceiling heights, proper egress windows, interconnected alarms, and passing all required city inspections before occupancy.
- Ontario Building Code compliant construction
- Minimum 6’5″ (1.95 m) finished ceiling height
- Properly sized egress windows for emergency escape
- Fire separation between units (walls & ceilings)
- Interconnected smoke and carbon monoxide alarms
- Separate entrance for independent access
- Building permits and mandatory city inspections
Our Legal Basement Apartment Process
Consultation & Assessment
We review your layout, ceiling height, site plan to confirm whether your space qualifies for a legal apartment
Design & Construction
Detailed floor plans and specifications are prepared to meet OBC and municipal requirements.
Permit & Approval
We handle the building permit submission process with the municpality and coordinate revisions if required.
Code-Compliant Construction
Framing, insulation, plumbing, electrical, HVAC, fire separation, and egress window installation are completed to meet legal standards.
City Inspections
We schedule and coordinate all required inspections to ensure full compliance before final approval.
Final Finishing & Handover
Final details are completed, delivering a fully finished & legal basement apartment ready for occupancy.
Cost & Timeline for a Legal Basement Apartment
Investment Range
Legal basement apartment projects typically start
around $65,000+, with most 800–1,000 sq. ft. premium apartments ranging
between $80,000 – $100,000+,
depending on layout, structural requirements, mechanical upgrades, and finish
selections.
•
Separate entrance construction
• Egress window installation
• Fire separation & soundproofing
• Kitchen, bathroom & premium finishes
• Electrical, plumbing & HVAC upgrades
Typical Project Timeline
Legal basement apartment projects typically take around 6–10 weeks to complete, with most 800–1,000 sq. ft. premium apartments progressing through permit preparation, municipal approvals, structured construction phases, and final inspections, depending on scope, complexity, and scheduling requirements
• 1–2 weeks for design & permit preparation
• 2–4 weeks for permit review & approval
• Site preparation & material procurement
• 4–6 weeks for structured construction
• Final inspections & occupancy approval
Recent Legal Basement Apartment Projects
Legal Basement Apartment
Legal Secondary Unit – Separate Entrance
Modern 3-Piece Bathroom & Full Kitchen
Open Concept Basement Apartment
Premium Basement Suite
Income Suite with Egress Windows
Turn Your Basement Into Rental Income & Long-Term Property Value
Potential Rental Income
A professionally finished legal basement apartment can generate approximately $1,600 – $2,500 per month, depending on size, layout, and finishes.
• Helps offset monthly mortgage payments
• Creates long-term passive income
• Improves overall household cash flow
• Adds financial stability during market shifts
Increased Property Value
A fully legal secondary suite adds measurable resale value by increasing livable square footage and income potential.
• Makes your property more attractive to buyers
• Strengthens appraisal and refinance potential
• Positions your home as an income-producing asset
• Enhances long-term investment returns
Why Homeowners Choose Maple Homes Builder
Permits & Drawings Included
We handle zoning review, permit drawings, and municipal approvals from start to finish.
Fire Code & ESA Compliance
Fully inspected electrical, proper fire separation, and Ontario Building Code compliance.
Clear Scope – No Surprise Costs
Detailed written scope and milestone payments. No vague pricing.
Built for Rental Income
Layouts designed for long-term tenant comfort and maximum return.
Clean, Respectful Worksites
Organized crews, protected finishes, and minimal disruption to your home.
Defined Timelines
From begining till end, structured construction schedule with clear project phases.