Who We Are
We Are Not Your Average
Toronto Construction Company
We are builders, problem solvers, and perfectionists, operating at the intersection of design and craftsmanship. From custom homes to full-scale renovations, we don't just transform spaces. We transform the way people live.
How It Started
Our Story
Allen Misaghi didn't build Grand Design Build overnight. He built it the hard way, through relentless dedication, an uncompromising eye for quality, and a refusal to settle for anything less than exceptional.
What started as one man's pursuit of excellence grew into one of Toronto's most recognized names in construction and architectural development. Project by project. Client by client. Building by building.
"This isn't just a company. It's what never stopping looks like."
On every jobsite. For every client. Through every challenge. That's not a slogan. That's how Grand Design Build was built, and it's how we operate every day.
Our Founder
Led by Allen Misaghi
Toronto is growing and we are partly responsible for it.
Grand Design Build has been working in Toronto since 2010, led by Allen Misaghi, who has 15+ years of experience in construction, including hotel builds for Hilton, Sheraton, St. Regis and Hotel X Toronto, a BMW Canada dealership, and walk-in and dental clinics across the GTA.
The company delivers home additions, full renovations, laneway and garden suites, and custom homes across Toronto. Grand Design Build has completed 250+ projects in Toronto.
As Allen puts it: "A design only survives construction if someone is accountable for protecting it the whole way through, not just building what's easiest or cheapest on site."
HCRA licensed. Seven-year structural guarantee, backed by The Grand Warranty.
What We Do
What We Build
We take on the projects others won't. We finish what we start. And we do it at a standard that speaks for itself long after the last nail is driven.
Architect, interior designer and builder are all in-house, on one contract. One team is accountable from first drawing to final walkthrough.
Why Toronto Trusts Us
We Don't Just Build Structures. We Build Trust.
Since 2010, delivering on our promises. A client list built entirely on referrals, reputation, and results.
Fully Insured & Licensed
Licensed by the HCRA and fully insured under all provincial and municipal regulations: structural construction and specialized trades alike. Your project is protected, compliant, and run by qualified professionals.
Seven-Year Structural Guarantee
A seven-year structural guarantee on every new home we build, plus a satisfaction guarantee on the process itself. You should love the build and the result.
Exceptional Craftsmanship
A high-quality finish free of defects at handover. We take a limited number of projects each year, so yours gets the time and attention to detail it deserves.
Fixed-Price Contracts
Sign a fixed-price contract with detailed, itemized quotations. Your price is final and includes everything in the contract. No hidden extras, no surprises, no increases for unforeseen items.
Our commitment is simple: transparent communication, disciplined execution, and exceptional results.
Homeowner Reviews
What clients say about working with us.
“Professional, knowledgeable, and easy to work with throughout. They took the time to understand our needs and provided complimentary interior design support. The project stayed on track from start to finish.”
Hasan G., Renovation & Addition“After a frustrating experience with another builder who left us with poor workmanship, we had to start over. From day one the team listened, understood, and genuinely cared about making things right. The finished home speaks for itself.”
Mark F., Full Home Renovation“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 Build4.9 average rating across Google reviews.