Home Addition Permits & Design in Ontario
Adding space to your home is a major investment that starts with the right design and proper building permits. Sandhu Design Build provides complete home addition services — from initial concept design and permit drawings through to full construction.
About Our Home Addition Services
Home additions range from simple sunroom extensions to full second-storey additions that double your living space. Every addition requires a building permit with drawings showing compliance with the Ontario Building Code, zoning by-law setbacks, lot coverage limits, and height restrictions. Our designer produces complete permit drawing sets including site plans, floor plans, elevations, sections, and construction details. We coordinate with structural engineers for foundation and load-bearing calculations, and handle all municipal submissions.
Why Choose Sandhu Design Build for Your Home Addition?
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 home addition 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 home addition project. Call us at (416) 809-0005, email [email protected], 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 home addition project.
Most home addition 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.