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Start Your Project➔

CUSTOM HOME BUILDING TORONTO

Building Custom Homes in GTA

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15+
Years in Business
2500+ sqf
Design Studio
250+
Projects Completed
10+
Project Coordinators

HCRA Licensed & Insured

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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 2011. 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 7-year structural guarantee because we don’t just build homes. We stand behind them.

Stages of a Custom Home Build Project

A custom build project typically goes through several stages from concept to completion. While the exact stages may vary depending on the project and the design-build team, the following is the usual process of a custom home build project:

1. Conceptualization

 In this stage, 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.

With your vision confirmed, our in-house architects and designers develop the full design of your home. This includes 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. No costly revisions later.

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, not after.

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, regardless of what happens to material costs or labor during your build.

At completion, we walk through the finished home with you, address every item on the punch list, and hand over your dream home to you.

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Cliffcrest Project | Custom Home Builder Toronto

What’s Included in a Custom Home Build
with Grand Design Build

  • 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 and focus on utility with design.
  • 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 (MEP): Full coordination and installation of HVAC, electrical, lighting, and plumbing systems. 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 7-year structural guarantee and Tarion enrolment where applicable.
OUR PROJECTS

Custom Home Building in Toronto’s Premium Neighborhoods

Grand Design Build is a custom home builder working across Toronto’s most sought-after neighborhoods. Our clients in Forest Hill, Rosedale, Lawrence Park, and Yorkville come to us for one reason: 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. We’ve navigated the City’s approval process hundreds of times, and we know how to get it right the first time.

Beyond the city, we also serve custom home clients in North York, Etobicoke, Oakville, Mississauga, and Thornhill.

Neighborhood we cover

  • 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
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Why Homeowners Choose Grand Design Build

Point 1: Fixed-Price Contracts

Most builders work cost-plus, meaning every material price spike, every unforeseen issue, gets passed on to you. GDB works on fixed-price contracts. The number we agree on is the number you pay. We carry the budget risk, not you.

Point 2: HCRA Licensed & Insured

Grand Design Build is fully licensed with the Home Construction Regulatory Authority (HCRA), the body that regulates new custom home building in Ontario. This is not a standard every builder meets. It means you have legal protections, warranty rights, and the assurance that your builder is held to provincial standards.

Point 3: 7-Year Structural Guarantee

Every custom home build we deliver is backed by a 7-year structural guarantee. If something goes wrong with the structure of your home, we stand behind it. This is the commitment we make to every client, not as a marketing promise, but as a contractual obligation.

Point 4: One Team, Start to Finish

You communicate with our site managers and do not worry about the minute details of communication. No hand-offs to subcontractors you’ve never met. No communication gaps between the design team and the build team. Just one firm, accountable for all of it.

" Grand Design Build did a great job on our renovation. Their team was organized, kept us informed through each step, and also delivered quality work. They were reliable with timelines and very clear about costs and materials. "
Lima Rodwesko
" We did our designing and building process for our custom home with Grand Design Build. The team is fabulous, they did a marvellous job on our home building "
Veronika
" They were amazing! From the beginning to the end. They were quick and worked clean. And even quick to responds after they were done the project. I will use them again for future projects. "
Nicole Khetani
" Absolutely thrilled with our experience building our house with Grand Design Build! The team was incredible to work with – professional, friendly, and super knowledgeable. They made the entire process smooth and enjoyable. Couldn’t be happier with the results and the journey. Highly recommend! "
Marisa Ciolfi
" We used Grand Design Build for a reno of our semi in Leslieville. The team did quality work on budget and were very responsive afterwards. They guarantee their work. We were delighted with the results and would recommend them. "
Ivo Gonzalez-Vucina

FAQs

1. How much does a custom home cost in Toronto?

In the current GTA market, high-end custom home builds typically range from $400 to $700+ per square foot. Total cost of a custom build depends on architectural complexity, material selections, and neighborhood-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 (4–6 months): Architectural design, engineering, and City of Toronto permit approvals.
  • Phase 2 (10–16 months): Demolition, foundation, framing, and full interior/exterior construction.

No. Our custom build service is truly “turnkey.” Our in-house interior design team works alongside our architects from the beginning. This ensures that the 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 labor shortages. Unlike cost-plus builders who pass every extra dollar onto you, our fixed-price model ensures we manage the budget risks. You get a guaranteed price for your defined scope of work, providing financial peace of mind from start to finish.

A standard building permit for a new home usually takes 3 to 5 months. However, if your design requires a “Minor Variance” through the Committee of Adjustment, you should plan for an additional 4 to 6 months. We help you handle the entire application to keep your project moving as fast as municipal timelines allow.

Neighborhoods that Grand design Build work in span across Central Toronto, North York, Scarborough and other GTA areas.

We regularly work 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.

SERVICES

Explore Our Other Services

Your home is one of the biggest investments you’ll ever make. Whether you’re building a custom home, adding space with an addition, transforming your space through a renovation, or maximizing your property with a laneway suite, you deserve a builder you can trust to get it right.

At Grand Design Build, we’ve spent over 15 years earning that trust. Through meticulous planning, honest pricing, and efficient construction, we deliver exceptional results without the stress, surprises, or budget creep that too often come with the territory. Every project, no matter the size, is backed by our guarantee, because we don’t just build homes. We stand behind them.

From initial concept to building permit approval in Toronto, we handle the paperwork so you can focus on the vision.

Design And Permits

Transform your living space with full-house remodels, bathroom and kitchen upgrades or basement suites.

Home Renovations

Seamless home additions and house extensions in Toronto that blend perfectly with your existing architecture.

Home Additions

Create the perfect space for family or guests with expert garden suite and laneway house construction

Laneway Suites

Ensure that your vision is executed on time and accurately without having to monitor the work yourself.

Project Management

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