Custom Home Builder in Mississauga and the GTA
Leedway Group designs and builds custom homes in Mississauga, Oakville and across the GTA. Lot feasibility, design, permits, construction and Tarion warranty are handled by one family-owned team that has been building since 2009.
Building a house in Ontario typically costs $325 to $550 per square foot in 2026, and custom homes in Toronto start around $400 per square foot.
- Tarion Registered and HCRA Licensed
- Family-owned Ontario builder since 2009
- Design, permits and construction under one contract
- Monthly cost reporting
Custom Home Services
Whether you already own a lot, plan to tear down and rebuild, or are still looking for land, we start by confirming what your zoning allows, so the design you pay for can actually be approved.
Knock-Down and Rebuild
Replace an older house on a lot you love. We handle the demolition permit, utility disconnections, the new design and construction. Demolition permit guide.
New Homes on Your Lot
A home designed around your family, your lot and your budget, from first sketch to final inspection. See our Weldon Drive home in Oakville.
Luxury and Lakefront Homes
Larger homes with premium finishes and complex sites, including lakefront builds like our Thorah Park home in Beaverton.
Lot Feasibility and Purchase
Check zoning, setbacks and servicing before you buy. Through Leedway Realty you can buy the lot and build with the same team, so feasibility is confirmed before you close.
Net Zero and Energy-Efficient Homes
High-performance building envelopes, ICF construction and heat pumps for lower running costs. Learn about net zero homes.
Multigenerational Homes
Homes planned for extended families, with in-law suites, separate entrances and accessible main floors. Multigenerational home guide.
What a Custom Home Costs in Ontario
Typical 2026 construction costs per square foot of heated living area. Land, permit fees, design and other soft costs are budgeted separately.
| Type | Typical cost |
|---|---|
| Ontario average | $325 to $550 per sq ft |
| Toronto custom homes | From $400 per sq ft |
| Luxury residences | $950+ per sq ft |
| Typical timeline, design to move-in | 12 to 24 months |
Why Build Your Custom Home With Leedway
One team designs, permits and builds your home, so decisions are made once, nothing falls between a designer and a contractor, and you see the costs every month.
- Lot and zoning feasibility checked before design starts
- Permit drawings, applications and inspections handled for you
- One contract and one point of contact from design to handover
- Monthly cost reporting, so you see every dollar as it is spent
- Tarion warranty: 1-year workmanship, 2-year systems, 7-year structural
Our Custom Home Process
01. Private Consultation
Understanding how you live, your site conditions and what the addition needs to do.
02. Feasibility and Design
Zoning review, conceptual design, scope definition and a budget you can plan around.
03. Planning and Permits
Permit drawings, engineering, consultant coordination and scheduling.
04. Construction and Oversight
Hands-on site management, quality control, inspections and monthly cost reports.
05. Completion and Care
Final walkthrough, orientation and warranty support after you move in.
Custom Home FAQs
Building a house in Ontario typically costs $325 to $550 per square foot in 2026. Custom homes in Toronto start around $400 per square foot, and luxury residences can exceed $950. These figures exclude land, permit fees and design costs.
Most custom homes in Ontario take 12 to 24 months from the start of design to move-in. Design and permit approval come first; construction time depends on size, site and finishes. You get a schedule at the planning stage.
No. Through Leedway Realty we can help you find and buy a lot, and we check its zoning and servicing before you close, so you know what you can build.
Yes. Every home we build is enrolled with Tarion: one-year workmanship, two-year systems and seven-year structural coverage. We respond to warranty items directly.
Yes. For knock-down and rebuild projects we handle the demolition permit, utility disconnections and site preparation before construction starts.
Yes. We build across the GTA and the Greater Golden Horseshoe, including Oakville, Burlington, Brampton, Milton and lakefront properties further north.
Areas we serve: Mississauga, Oakville, Burlington, Brampton, Milton, Toronto and across the GTA.
More custom home guides: Custom home cost in Ontario · Cost per square foot · Custom home build timeline · Mississauga neighbourhoods for custom homes
Plan Your Custom Home With Leedway
Tell us about your lot and the home you have in mind. We will check what your zoning allows and give you a realistic budget range before any drawings are paid for.
Call 905-736-3559 or send the form.