Thinking about building a garden suite on your property? You’re not alone — more Ontario homeowners are adding secondary units than ever before. Here are answers to the most common questions we receive from Toronto, Aurora, and Newmarket property owners.
1. What is a garden suite and how is it different from a laneway suite?
A garden suite is a small, self‑contained home built in the backyard of a residential property (without a rear laneway), while a laneway suite backs directly onto a public laneway. Both are considered Accessory Dwelling Units (ADUs), but the approval rules differ slightly depending on lot layout.
Ontario Concrete Inc. helps you design and construct the right option for your lot configuration across the GTA and York Region.
2. How much does a garden suite cost in the Toronto GTA?
Average costs range between $250,000 and $450,000, depending on size, structure type (ICF, wood frame, modular), and finishes.
Ontario Concrete does the best price for home additions and garden suite projects, ensuring unmatched value. And yes 💥 we beat up to 20% off any written price.
3. Do I need a permit to build a garden suite in Aurora or Newmarket?
Yes, but the process is relatively straightforward. You’ll typically need a building permit plus compliance with setback, height, and lot coverage rules. As licensed contractors, Ontario Concrete Inc. manages all architectural drawings, city submissions, and building code compliance.
4. Can I rent out my garden suite legally in Toronto?
Yes — garden suites are legal rental units if built under the Ontario More Homes Built Faster Act regulations. They must comply with fire codes, parking, and zoning standards. We design all our Garden Suites to meet or exceed Ontario’s residential rental requirements.
5. How long does it take to build a garden suite?
Construction timelines depend on site conditions and permits, but most projects take 6–9 months from approval to completion. Our detailed schedules keep you informed every step of the way.
Expand Smart with Ontario Concrete Inc.
Add value, flexibility, and income to your home with a custom garden suite built by Ontario Concrete Inc. — the best contractors for home additions and garden suites across the Toronto GTA, Aurora, and Newmarket.
💥 We beat up to 20% off any written price — guaranteed.

(647) 474-2225
Toronto & Greater Toronto Area
Monday - Saturday: 9am - 6pm
Sunday: By Appointment