Licensed ADU Builders in Ontario
Unlock secondary revenue and add property equity. From custom garden suites to laneway houses, our civil engineers handle complete turnkey **ADU Construction** across Toronto, Windsor, and the GTA.
Engineered to comply with the Ontario Building Code & local municipal bylaws.
Choose Your ADU Unit Type
Click the tabs below to explore architectural options engineered for Ontario lots.
Detached Backyard Garden Suites
A fully independent standalone residential cottage built in your backyard. Perfect for aging parents or high-yield rental income in Toronto and Windsor.
- Independent HVAC, plumbing, and electrical connections
- Full municipal permit filing with Toronto & Windsor City Planning
- High-R value Canadian winter insulation standard
Specialized Build Capabilities in Ontario
Click on any specialization below to explore our general contracting services.
ADU Builders Toronto
Premier ADU builders toronto homeowners hire for complex urban lot developments, laneway suites, and garden homes.
ADU Builders Windsor
Turnkey secondary suite installation by top ADU builders windsor trust across Essex County.
Engineering ADU Construction
End-to-end ADU Construction from concrete footings to final utility hookups, supervised by Civil Engineers.
Frequently Asked Questions
Q. Are ADUs legal to build in Toronto and Windsor, Ontario?
Yes! Recent Ontario housing legislation allows homeowners in most residential zones to add up to three legal units (including secondary suites and detached garden homes) on a single property lot.
Q. Do ADU builders manage architectural drawings and municipal permits?
Yes. As experienced **ADU builders**, we handle site feasibility studies, architectural drafting, structural engineering calculations, and municipal building permit filings with Toronto or Windsor authorities.
Q. What is the average timeline for complete ADU Construction?
A detached backyard garden suite or laneway home typically takes 4 to 7 months from site excavation to final occupancy approval.
Book Your ADU Consultation
Serving Toronto, Windsor, and Greater Ontario.