Luxury Custom Home Builder · GTA
Your Dream Home, Built to Outlast Generations.
Tarion-licensed luxury custom home builder serving the GTA and beyond — for over 30 years.
30+
5 ★
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Luxury Custom Home Builder in GTA
For over 30 years, GrandBuild Homes has built homes that go beyond expectations — crafted with precision, designed for longevity, and finished to a standard that reflects the life you’ve worked hard to build.
Based in Mississauga and trusted across the Greater Toronto Area — from Oakville and Vaughan to Brampton, Caledon, Richmond Hill, and Toronto — we are a Tarion-licensed, full-service design-build firm that takes complete ownership of your project, from the first conversation to the final walkthrough.
No chasing multiple trades. No losing control of your vision. One experienced team managing every detail — land acquisition, architectural drawings, permits, construction, and curated finishes — with the discipline and transparency a project of this scale demands.
This is how a custom home should be built. And this is what every GrandBuild client experiences.
- Modern Builds, Executed With Discipline
- Premium Materials. Refined Craftsmanship.
- Licensed, Experienced Professionals Who Lead the Process
Full-Service Construction & Development
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Custom Home Builds
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Home Additions & Expansions
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Real Estate Investment Projects
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Basement & Income Suites
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Garden & Secondary Suites
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Insurance & Fire Restoration
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Renovations
Built With Confidence.Backed by 30 Years of Discipline.
- 30+ Years in the GTA
- HCRA Licensed & Regulated
- Fully Insured
- Tarion Warranty Protection
- 5-Star Client Rated
The Right Team for a Build This Important
Building a custom home is one of the most important investments you will make, and our team is dedicated to making that experience seamless and rewarding. As trusted luxury custom home builders serving Mississauga, Toronto, Lorne Park, Mineola, Port Credit, Vaughan, King City, King Township, Oakville, Richmond Hill, Markham, Brampton, and across the GTA, we focus on delivering homes that combine design excellence with long-term performance. Every element is carefully planned and executed to ensure your home not only looks exceptional but also stands strong for decades.
Licensed & Trusted
A fully HCRA-licensed builder you can feel confident inviting in
Protected for Years
Every home comes Tarion-backed, so your peace of mind lasts long after move-in
Homeowners Love Us
Rated 5 stars by families we've built for across the GTA
Homes Crafted With Pride, Built With Purpose
5-Star Rated by Clients
See what clients say about working with our team from start to finish.
Frequently Asked Questions
How much does it cost to build a custom home in the GTA?
Cost depends on size, design, materials, and complexity. Our custom homes typically start at $300 per square foot. After an initial consultation, we provide a detailed, transparent estimate for your specific project.
How long does it take to complete a custom home?
Most custom homes take 12–18 months from design to move-in, depending on the size of the home, municipal permit timelines, and design complexity. We build a realistic schedule with you up front — and manage it with discipline.
Do you handle permits, architecture, and engineering?
Yes. We are a full-service design-build firm. Architectural design, structural engineering, permits, inspections, and construction are all managed by one accountable team — you never have to chase multiple trades.
Are you licensed and insured?
Yes. GrandBuild Homes is Tarion-licensed, HCRA-regulated, and fully insured. Every new home we build is covered by Tarion warranty protection.
What areas do you serve?
We’re based in Mississauga and build across the Greater Toronto Area — including Toronto, Oakville, Brampton, Vaughan, Caledon, Richmond Hill, and surrounding communities.
Ready to build the home you've always envisioned?
Service Area
Serving the GTA & Surrounding Areas
Phone
Open Hours
9:00 AM – 5:00 PM