Custom Home Building
Custom Home Building in Toronto
From initial concept through to final handover, our integrated design-build team delivers your custom home on time, on budget, to the standard the GTA's most discerning homeowners expect.
Designing & Building Custom Homes Across the GTA
Designing & Building Custom Homes Across the GTA
One team for design, build and warranty, with a fixed-price contract locked before work begins, a detailed itemized quote within 48 hours, and interior design and material selection included on every project.
By the Numbers
Custom Home Building, By the Numbers
48 hrs
Get a detailed, itemized quote for your project.
2,500 sq ft
Design centre, with supplier pricing on every material.
Fixed Contract
Locked before work begins. No surprises, no extra charges.
On Time
On-schedule project handover, tracked at every milestone.
Included
Interior design services and material selection on every project.
One Team
Design, build and warranty. Full accountability.
Overview
Custom Home Construction Across Toronto & the GTA
Grand Design Build manages every detail of your custom home building project, from initial concept and design through to final handover. Whether it's a modern infill, a classic family home in Lawrence Park, or something entirely custom, our integrated design-build team delivers it on time, on budget, and to a standard the GTA's most discerning homeowners expect.
We've been building custom homes across Toronto since 2010. Our clients come from Forest Hill, Rosedale, Yorkville, North York, Etobicoke, Oakville, and throughout the GTA, and they choose Grand Design Build because we treat their project the way it deserves to be treated. One team, fixed price and zero surprises.
As an HCRA licensed builder, every project we take on is backed by our structural guarantee, because we don't just build homes, we stand behind them.
Talk to us about your project.
Free, no obligation. You get a clear, fixed price.
Our Process
Stages of a Custom Home Build Project
A custom build project typically goes through several stages from concept to completion. While the exact stages vary with the project and the design-build team, this is the usual process.
Concept & Scope
You sit down with our design-build team to discuss your vision, your site, your budget, and your timeline. We conduct a detailed feasibility study, reviewing zoning bylaws, lot coverage rules, setback requirements, and any variances that may affect your design. You leave this stage with a clear picture of what's possible, what it will cost, and how long it will take.
Design Development
With your vision confirmed, our in-house architects and designers develop the full design of your home: architectural drawings, structural engineering plans, 3D renderings, and interior design concepts. Having design and build under one roof means your interior flow, custom cabinetry, and lighting plans are built into the structural blueprints from day one, with no costly revisions later.
Pre-construction
Before construction begins, we handle every permit, approval, and regulatory requirement on your behalf. In Toronto, a standard building permit takes 3 to 5 months; if your design requires a Minor Variance through the Committee of Adjustment, add 4 to 6 months. We manage the entire City of Toronto application process so your project starts moving the moment permits are issued.
Construction and Completion
Construction is managed by a dedicated project coordinator who is your single point of contact from approvals to handover. We coordinate all trades, manage the site daily, and keep you updated at every milestone. Our fixed-price contract means the number you agreed to is the number you pay. At completion, we walk through the finished home with you and address every item on the punch list.
What's Included
What's Included in a Custom Home Build with Grand Design Build
Every custom home we build carries the same scope of work, priced and documented before construction starts.
Permit Acquisition & Zoning Approvals
Full handling of building permits, variances, and City of Toronto approvals. We manage the paperwork so your project doesn't stall.
Project Budgeting & Cost Estimation
Transparent pricing from day one. We produce a detailed, line-by-line budget and lock it into a fixed-price contract before construction begins.
Structural Engineering & Code Compliance
Engineering drawings, load calculations, and full adherence to Ontario Building Code requirements. Our builds are designed to last.
Custom Millwork & Built-In Solutions
Kitchens, vanities, closets, built-in shelving, and feature walls, all built to your specification by our in-house millwork team.
Mechanical, Electrical & Plumbing
Full coordination and installation of HVAC, electrical, lighting, and plumbing. Every system is planned at the design stage, not retrofitted during construction.
Post-Construction Walkthrough & Warranty
Final client walkthrough, punch list completion, and a full warranty package, including our structural guarantee and Tarion enrolment where applicable.
Areas We Serve
Custom Home Building in Toronto's Premium Neighbourhoods
Grand Design Build is a custom home builder working across Toronto's most sought-after neighbourhoods. Our clients in Forest Hill, Rosedale, Lawrence Park, and Yorkville come to us because they want a home built with the same attention to craft as the neighbourhood it sits in. We understand the zoning nuances, the Committee of Adjustment requirements, and the heritage considerations that come with building in established Toronto communities, and beyond the city we also serve clients in North York, Etobicoke, Oakville, Mississauga, and Thornhill.
Central Toronto
Old Toronto, Downtown, Rosedale, Forest Hill North, Bloor West Village.
North York
North York, Bayview Village, Ledbury Park.
East York & Scarborough
East York, Leaside, Leslieville, The Beaches, Danforth Village, Cliffside.
Greater Toronto Area
Oakville, Mississauga, Thornhill, Richmond Hill.
Why Us
Why Homeowners Choose Grand Design Build
Fixed-Price Contracts
Most builders work cost-plus, meaning every material price spike and every unforeseen issue gets passed on to you. We work on fixed-price contracts. The number we agree on is the number you pay. We carry the budget risk, not you.
HCRA Licensed & Insured
Grand Design Build is fully licensed with the Home Construction Regulatory Authority, the body that regulates new custom home building in Ontario. It means you have legal protections, warranty rights, and the assurance that your builder is held to provincial standards.
Structural Guarantee
Every custom home we deliver is backed by a structural guarantee. It's written into your contract.
One Team, Start to Finish
You communicate directly with our site managers throughout the project. One firm, accountable for design, build, and everything in between.
Selected Work
Custom homes we have built
Finished houses, photographed after handover.
Areas We Serve
Custom Homes Across Toronto
We build throughout Toronto and the GTA. These are the neighbourhoods we work in most.
Homeowner Reviews
What clients say about this service.
“Grand Design Build exceeded every expectation we had. From the very first consultation, they were professional, transparent, and truly passionate about their work. Our new home is stunning, and the attention to detail is second to none.”
Will, Custom Build“Grand Design built our custom dream home. I like how they simplified the building process with in-house architect, interior design and builder. The team came up with lots of great ideas to make the house both functional and beautiful.”
David Mitchell, Custom Build“They took care of everything, from designing to my zoning permits to building the whole house. The project was delivered on time. I really appreciate the team for building my dream home, exactly the way I wanted it to be.”
Shanker Maniyari, Custom BuildFrequently Asked Questions
Everything you'd ask before committing.
In the current GTA market, high-end custom home builds typically range from $400 to $700+ per square foot. Total cost depends on architectural complexity, material selections, and neighbourhood-specific requirements. We provide a detailed feasibility study during our initial consultation to establish a realistic, all-in budget.
In the GTA, a custom build typically takes 12 to 20 months. Phase 1, 4 to 6 months, covers architectural design, engineering, and City of Toronto permit approvals. Phase 2, 10 to 16 months, covers demolition, foundation, framing, and full interior and exterior construction.
No. Our custom build service is truly turnkey. Our in-house interior design team works alongside our architects from the beginning, so interior flow, custom cabinetry, and lighting plans are integrated into the structural blueprints, preventing costly changes later in the build.
In a volatile market, a fixed-price contract protects the homeowner from material price spikes and labour shortages. Unlike cost-plus builders who pass every extra dollar on to you, our fixed-price model means we manage the budget risk. You get a guaranteed price for your defined scope of work.
A standard building permit for a new home usually takes 3 to 5 months. If your design requires a Minor Variance through the Committee of Adjustment, plan for an additional 4 to 6 months. We handle the entire application to keep your project moving as fast as municipal timelines allow.
We work across Central Toronto, North York, Scarborough and the wider GTA, regularly in Old Toronto, Downtown, Rosedale, Forest Hill North, Bloor West Village, North York, Bayview Village, Ledbury Park, East York, Leaside, Leslieville, The Beaches, Danforth Village, Cliffside, Richmond Hill, Oakville, and Eglinton West.