Garden Suite & ADU Permits in Ontario
Garden suites — also known as accessory dwelling units (ADUs), laneway houses, or backyard homes — are now permitted in most Ontario municipalities. Sandhu Design Build designs and builds garden suites from the ground up.
About Our Garden Suite Services
Ontario's housing legislation has expanded permissions for garden suites across the province. These detached residential units built in your backyard offer rental income potential, multigenerational living flexibility, and significant property value increases. Our BCIN-qualified designer produces complete permit drawing sets for garden suite construction, including site plans, architectural drawings, and coordination with structural, mechanical, and electrical engineers.
Why Choose Sandhu Design Build for Your Garden Suite?
Sandhu Design Build brings together BCIN-qualified design expertise and hands-on construction experience under one roof. When you work with us, you get a single point of contact for your entire project — from initial consultation and feasibility assessment through permit drawings, municipal submission, plan review, and construction. Our principal designer holds BCIN 512242 and has direct experience with GTA municipal building departments, meaning your permit application is prepared correctly the first time.
We serve homeowners and property owners across the Greater Toronto Area, with particular expertise in Brampton, Mississauga, Vaughan, Oakville, Milton, Toronto, Markham, and Richmond Hill. Every municipality has its own submission requirements, fee schedules, and review processes — and we know them from firsthand experience.
Our Process
Every garden suite project begins with a free consultation. We visit your property, discuss your goals, review zoning and code requirements, and provide a detailed quote. Once you approve, our designer produces your permit drawings, we coordinate with any required engineers, and submit your complete permit application. After permit issuance, our construction team builds your project to the approved drawings, managing all trades and inspections through to completion and final occupancy.
Get Started Today
Contact Sandhu Design Build for a free, no-obligation consultation about your garden suite project. Call us at (416) 809-0005, email prince@sandhudesignbuild.ca, or fill out the form below. We respond within 24 hours.
Frequently Asked Questions
Costs vary by project scope and complexity. Contact Sandhu Design Build at (416) 809-0005 for a free, no-obligation quote specific to your garden suite project.
Most garden suite projects in Ontario require a building permit. Our BCIN-qualified designer will assess your project and advise on permit requirements during your free consultation.
Timelines depend on project scope. Permit drawings are typically completed in 5–10 business days. Municipal review adds 2–8 weeks. Construction timelines vary by project size.
We serve the entire Greater Toronto Area including Brampton, Mississauga, Vaughan, Toronto, Oakville, Milton, Markham, Richmond Hill, Newmarket, and Caledon.