Luxury custom home builder · Greater Toronto Area
Custom Home Builders Mississauga Since 1995
For the last 3 decades we have been the top choice for families’ dream homes across the GTA. From start to completion, we manage, design, approvals, construction, and finishing with one dedicated team.
Years Building
30+
Three decades of GTA permits, sites and seasons.
LICENSED & WARRANTED
HCRA + Tarion
Ontario licensed, every new home registered.
Homes Delivered
100+
From Empty lot to Keys in Hand
Google rating
5.0 ★
Every review left by someone who lived through the build.
Following the Work
39K
We post the process, not just the finish.
Every Number Here Has a Name Behind it
Grand Homes Built in Mississauga and GTA
Our recent builds projects show the range of residence. Each project reflects careful planning, quality materials, expert craftsmanship and attention to every detail.
Palgrave
Redstone Road
3114 Bonaventure
What We Build in Mississauga and GTA
Everything Under One Contract
Custom home builds
New homes from the lot up, designed and built end to end. As an HCRA-licensed builder, every home we deliver is registered with Tarion and covered by the Ontario New Home Warranty, architecture, permits, construction and finishes all under one contract.
Home additions and expansions
Second storeys, rear additions and structural expansions. We handle the zoning review, Committee of Adjustment application where a minor variance is needed, and the building permit, then build around the home you are living in.
Basement and income suites
Legal secondary units, walkouts and finished lower levels. Ceiling heights, egress windows and fire separation are built to the Ontario Building Code and inspected, so the unit is legally rentable the day it is finished.
Garden and secondary suites
Detached garden suites and Additional Residential Units (ARUs). We check your lot against current zoning and, where required, conservation authority approvals before you commit, then build to the Ontario Building Code.
Home Renovations
Full-house renovations and kitchen and bathroom rebuilds. One team through demolition, mechanical, drywall and finishes, with a fixed written scope and schedule before we start, no allowances that quietly grow.
Insurance and fire restoration
Rebuilds after fire, flood and structural loss. We work directly with your adjuster on scope and pricing, and bring the property back to current Ontario Building Code, not just back to what was there.
Real estate investment projects
Build-to-sell and build-to-rent for investors and developers. Budgets, timelines and finish levels set against your return, with HST and closing costs accounted for from day one.
Land and property
Help finding a lot to build on, and selling the home you are in. We review sites for buildability, zoning, setbacks, servicing and conservation constraints, before you put an offer in.
How a Custom Home Build Runs
Six Steps. One Point of Contact
The lot
Have one, or need one. We help you find land across Mississauga and the GTA, and sell the home you are in. Then we stand on the property together and tell you what it will realistically take, before you commit to it.
Design
Architectural drawings developed around the lot, the zoning and how you actually live. You see the home before it is built, and you sign off before anything moves forward.
Permits and approvals
Zoning, engineering, conservation authority and municipal approvals are ours to manage. Thirty years as a custom home builder in Mississauga means we know which desk your file lands on. You are not chasing the city.
Fixed price
Your number is itemized line by line and agreed before we break ground. No moving target, and no allowances that quietly grow.
Build
One team on site, one schedule, one person you call. Clean, organized, and inspected at every stage.
Handover
Final walkthrough, deficiencies closed, Tarion warranty registered and your 30-day form filed. Then we stay reachable, the way a builder should be after handover.
Land First? We Handle that Too
Most of our clients come to us before they own the land. We help you find the property, sell the home you are in, and tell you what a lot can actually support, before you put an offer in.
Why You Should Choose Us as Custom Home Builders in Mississauga
30+ Years of Building Experience
A family-run builder creating quality custom homes across Mississauga and the GTA since 1995.
One Team From Start to Finish
We manage design, permits, construction, and finishing through one accountable team.
Transparent Planning and Communication
Clear expectations, honest pricing, and regular guidance throughout your build.
Tarion Warranty Protection
Your new home is backed by trusted warranty coverage for long-term confidence.
HCRA Licensed and Insured
Licensed by Ontario’s Home Construction Regulatory Authority and fully insured, verifiable on the public registry.
Help With Land and Planning
We assist with evaluating opportunities and preparing your project before construction begins.
Hands-On Project Management
Work directly with an experienced team dedicated to your home.
Pricing
We publish our numbers.
Most builders make you book a call to find out whether you can afford them. We would rather you knew before you picked up the phone. These are real starting ranges from real builds across Mississauga and the GTA, not marketing numbers.
Signature Series — $350–450 / sq ft
A high-quality custom home on a standard GTA lot. Design and permits coordinated in-house, quoted as a separate line.
Estate Series — $450–800+ / sq ft
Landmark homes. Architectural design, interior design and permit fees included.
Typical project — From $1,050,000
A 3,000 sq ft Signature Series home. Construction scope.
Your quote — Fixed after discovery
Itemized line by line before we break ground. It does not move.
Ranges are typical, not quotes. Land, landscaping, driveway and appliances are budgeted separately. Full Tarion warranty on both series.
Trusted by Clients We Built for
Areas We Serve in Mississauga and the GTA
GrandBuild Homes handles design and custom home building across the Greater Toronto Area. We work as a luxury custom home builder in Mississauga and throughout the neighbourhoods below, from teardown-and-rebuild lots in Lorne Park to estate properties in King City.
Mississauga
Lorne Park, Gordon Woods, Mineola, Applewood, Lakeview, Rattray Marsh, Port Credit, Clarkson
Oakville & Burlington
Old Oakville, Morrison, Eastlake, Roseland, Shoreacres
Etobicoke
The Kingsway, Humber Valley, Sunnylea, Princess-Rosethorn
North York
York Mills, St. Andrew-Windfields, Hoggs Hollow, Willowdale
Also serving
Toronto, Vaughan, Brampton, Richmond Hill, Caledon, Kleinburg, King City
Questions We Get Asked
How much does it cost to build a custom home in Mississauga?
The cost depends on your home size, design, materials, and finishes. We provide clear pricing based on your property, goals, and custom home construction requirements.
How long does it take to build a custom home?
Timelines vary based on design, approvals, and project complexity. We provide a realistic schedule for your custom home builds before construction begins.
Do you handle permits, architecture, and engineering?
Yes. We manage permits, engineering, and approvals with experienced custom home designers to keep your project organized.
What areas do you build custom homes in?
We build across Mississauga and the GTA, helping homeowners create personalized custom homes with a complete building process.
Can you help me find land or assess my property?
Yes. We review properties, assess building potential, and help you make informed decisions before starting your project.
Am I covered by a warranty?
Yes. Every home is registered with Tarion, providing warranty protection from the start. As an experienced custom home builder GTA, we support you through completion.
NO OBLIGATION · NO PRESSURE
Let's stand on the lot.
Have a lot, or are you still looking? Either way, we walk the property with you, tell you what can realistically be built on it, and give you a number before you spend anything.
We respond within one business day.