ADU Construction Across Toronto, Windsor & Southwestern Ontario
Expand your living space and build secondary rental income with civil-engineered precision. From initial zoning reviews in Toronto to full structural handovers in Windsor-Essex County, our licensed engineering team manages your secondary build from start to finish.
Standards & Certifications
Engineering Tomorrow’s Housing Solutions on Ontario Properties Today
At All Right Construction, we believe your residential lot holds untapped potential. As a premier ADU builder operating across Southwestern Ontario, we specialize in converting underutilized yard spaces, basements, and detached structures into high-end, self-contained living units.
Founded on civil engineering rigor and transparent customer communication, our firm handles the complexities of modern residential densification. Operating out of Windsor and servicing communities through LaSalle, Tecumseh, Belle River, and the Greater Toronto Area, we deliver architectural elegance without structural compromise.
Why Property Owners Choose Us for Their ADU Build
1. Civil Engineering Oversight
Our projects are directed by qualified civil engineers verifying soil bearing capacities, structural framing loads, and thermal envelopes.
2. 100% Turnkey Execution
As your custom ADU builder, we handle drafting, municipal approvals, excavation, framing, finishes, and final utility sign-offs.
3. Local Zoning Expertise
We design strictly within height restrictions, lot coverage limits, and tree protection corridors across Toronto and Essex County.
4. Fixed-Price Contracts
No hidden mid-project surcharges. We break down material costs, labor allocations, and permit fees upfront for total financial clarity.
Comprehensive ADU Building & Engineering Services
1. Detached Backyard Suites
As a dedicated backyard suite builder, we construct standalone homes equipped with kitchens, bathrooms, and separate HVAC systems.
2. Modern Garden Suites
Our garden suite builder services deliver energy-efficient, eco-friendly infill housing utilizing high-R insulation ideal for Toronto and Tecumseh.
3. Custom ADU Design Services
Our in-house ADU design services balance modern architectural aesthetics with structural efficiency to create open-concept living spaces.
4. Turnkey ADU Permit Services
Our dedicated ADU permit services manage structural blueprints, HVAC calculations, and site plan submissions before planning departments.
Our Step-by-Step ADU Construction Process
Property Feasibility
Evaluating lot boundaries, utility capacities, and municipal setback rules across Toronto or Windsor-Essex.
ADU Planning and Design
Engineers and architects create floor plans, 3D elevation renders, and structural blueprints during the ADU planning and design phase.
Permit Approvals
Submitting documentation to your local building department and managing revisions until building permits are issued.
Civil Site Prep & Framing
Excavation, concrete footing pour, underground utility rough-ins, and heavy timber structural framing execution.
The Long-Term Advantages of Building an ADU in Ontario
📈 Substantial Property Equity
Adding a detached ADU or garden suite can significantly increase your overall real estate asset market valuation.
💵 Passive Monthly Rental Income
Offset your primary mortgage by renting out your secondary unit in high-demand markets like Toronto or Windsor.
👨👩👧 Multigenerational Living
Keep parents or young adults close by while providing them with full independence, privacy, and dignity.
🌿 Smarter Urban Density
Utilize existing municipal infrastructure to create sustainable, walkable housing solutions in established neighborhoods.
Serving Homeowners Across Southwestern Ontario & GTA
Toronto & GTA
Specializing in narrow urban lot infill, laneway suites, and garden home developments complying with Toronto City Bylaws.
Windsor & LaSalle
Complete turnkey detached ADU builds for established suburban lots and custom high-end estate properties.
Tecumseh & Belle River
High-efficiency living suites engineered for suburban and semi-rural properties requiring utility planning.
Windsor-Essex & Southwestern Ontario
Serving all adjacent regional municipalities with civil-engineered secondary dwelling builds.
Engineered Quality. Local Accountability.
When you hire All Right Construction as your ADU contractor, you work with local builders who understand Ontario’s climate, soil conditions, and municipal regulations.
What Local Homeowners Say About Our ADU Builds
"We wanted to build a garden suite for my aging mother in LaSalle. All Right Construction handled the permit process with the town seamlessly and completed the build on schedule."
— Marcus & Elena V., LaSalle, ON"Finding a reliable custom ADU builder in Toronto is tough. All Right Construction designed a custom detached unit for our backyard that generates incredible monthly rental income."
— David K., Toronto, ON"From ADU design services to final inspection, these guys were fantastic. Our new secondary suite in Belle River looks like it came straight out of an architectural magazine."
— Sarah L., Belle River, ONFrequently Asked Questions
Q. What is the average cost of ADU construction in Ontario?
ADU construction costs depend on lot conditions, unit size, structural type, and chosen finish levels. Contact our team for an itemized estimate tailored to your property.
Q. Are ADUs legal in Toronto, Windsor, and LaSalle?
Yes. Under Ontario’s provincial housing legislation and municipal zoning by-laws, property owners in residential zones are generally permitted to build secondary dwelling units.
Q. How long does it take to build a detached garden suite?
A standard detached ADU build typically takes 4 to 7 months from site excavation to final handover.
Q. Do I need separate utility connections for an ADU?
Depending on local municipal rules and capacity, ADUs can either tap into primary home services or have independent meters installed.
Ready to Unlock Your Property Value?
Serving Toronto, Windsor, LaSalle, Tecumseh, Belle River, and Southwestern Ontario.