Serving Mississauga, Oakville, Burlington, Milton, Halton Hills & the GTA — Call or Text 647-289-2823

Legal Basement Apartments · Mississauga

Legal Basement Apartments in Mississauga

Serving Mississauga and surrounding neighborhoods including Port Credit, Streetsville, Erin Mills, Meadowvale, Cooksville, Lorne Park, Clarkson.

Typical Project Range

$75,000–$150,000+

ScaleBig Construction is based in Mississauga and builds legal basement apartments throughout the city — from Port Credit and Lorne Park to Streetsville, Erin Mills, Meadowvale, and Cooksville. Mississauga's Additional Residential Unit bylaw makes legal second suites one of the strongest ROI plays for local homeowners, and we handle the entire process so you don't deal with the city directly.

Every Mississauga build is permitted, ESA-inspected, and signed off — protecting your property value, your insurance, and any future sale. With a two-bedroom legal suite in Mississauga renting for $2,000+/month, most clients see their investment paying for itself in well under a decade.

Finished legal basement apartment in Mississauga

Why Build a Legal Basement?

Earn $1,500–$2,500+/month

Generate consistent rental income to help cover your mortgage or build wealth.

Increase Property Value

A legal second unit can add $100,000+ to your home's market value.

Full Legal Compliance

Proper permits protect you from fines, insurance issues, and liability concerns.

Get a Free Mississauga Quote

What's Included

Building permit application & engineering
Architectural drawings & floor plans
Separate entrance with fire separation
Full kitchen with plumbing rough-in
Bathroom with shower/tub
Egress windows meeting fire code
Electrical panel upgrade & wiring
HVAC / heating system
Drywall, flooring & trim finishing
All municipal inspections