In-law Suite Toronto
Full secondary unit — kitchen, bedroom, bath, laundry, separate entrance. One crew, one fixed price, every permit handled. Your basement becomes a legal, rentable suite.
Planning an in-law suite in Toronto? CNB Renovation builds complete secondary units — from structural framing and fire separation to full kitchen, 3-piece bathroom, bedroom, and laundry. We handle the building permit, City registration, and every trade with our own in-house crew. Whether it's a basement in-law suite for a parent, a rentable second unit, or a legal suite for resale value, CNB delivers on a fixed-price written commitment. BCIN certified, WSIB insured, 215 projects across Toronto, Etobicoke, North York, Scarborough, Mississauga, and Brampton.
Everything in-house. One crew, start to finish.
Full Kitchen & Living Area
Custom kitchen cabinets, quartz countertops, full appliance package, pot lights, LVP flooring throughout. All plumbing and electrical rough-in to OBC 2024. Free design consultation included.
3-Piece Bathroom
Below-grade bathroom from scratch: ejector pump, Schluter Kerdi waterproofing, porcelain tile, floating vanity, frameless glass shower. City rough-in inspection arranged and signed off.
Separate Entrance
Interior stair reconfiguration or exterior walkout excavation. Structural engineering, waterproofing, exterior door rough-in, permit filed. Private access maximizes rental income and tenant appeal.
Legal Registration & Fire Code
Type-X drywall fire separation, egress windows to OBC, smoke and CO detectors, City second-unit registration. Suite legally rentable and insurance-compliant. Every certificate handed to you at sign-off.
Three steps from call to completion
Free In-Home Feasibility Assessment
We visit, measure, check ceiling height (OBC min 1.95 m), assess structural and waterproofing. Written fixed-price scope after the visit. No commitment required.
Permit Filing + Design Finalization
We file your Building Permit with the City of Toronto and track it for you. Finalize kitchen layout, tile, fixtures — 3D visual included. Build starts on permit approval.
Build, Inspect, Register — One Crew
Framing, insulation, drywall, kitchen, bath, flooring, electrical, plumbing — same crew throughout. All City inspections arranged. Second-unit registration handed to you at final sign-off.
The CNB Triple Guarantee
Fixed Price
Your quote is your final number. We don't increase the price mid-project. Any change you request gets a written change order — your approval before we proceed.
On Time
We commit to a build schedule before we start and we hold to it. You get a written timeline up front and a status review every week — no vanishing crews, no open-ended jobs.
No Surprises
Every scope in writing. Every inspection scheduled. Every certificate handed to you at the end. We call you before we open walls — never after.
WSIB covered · $2M liability insurance · BCIN certified · 10+ years GTA
What homeowners ask before hiring us
A legal in-law suite adds real rental value and resale uplift in Toronto. We walk through the numbers for your specific home and layout during your free feasibility call.
Yes — always. Secondary units require a Building Permit and must meet OBC 2024 for fire separation, egress, ceiling height, and ventilation. We file with the City of Toronto and schedule every inspection — City permit processing is factored into your schedule upfront.
Ontario Building Code 2024 requires 1.95 m (6'5") minimum for habitable space. Below threshold? Underpinning is an option — we assess it at no charge during the site visit, no obligation.
Legally no — internal-access suites are permitted under the OBC. A private exterior entrance dramatically increases rental value and tenant appeal. We build exterior walkouts or reconfigure interior stairs based on your lot and layout.
Yes — it is not optional. OBC requires 30-minute fire separation: Type-X (5/8") drywall on all shared walls and ceiling, fire-rated door assemblies. Non-compliant suites void home insurance and create personal liability. Every CNB suite passes City inspection.
We give you a firm written timeline from permit through to tenant move-in. Timelines depend on scope and City permit processing — we walk you through the full sequence before you sign, and our On-Time commitment backs the schedule we agree to.
Absolutely. In-law suites are equally popular for aging parents, adult children, or a home office. Same legal build — and you retain the option to generate rental income whenever you choose.
Free on-site walkthrough — no obligation
We come to your home, assess the space, and send a written fixed-price quote after. Serving Toronto, Etobicoke, North York, Scarborough, Mississauga, Brampton and all GTA.
Open 8 AM – 11 PM · 7 days a week · A real person calls you back