Zoning & Feasibility First
We analyze your property for setbacks, Floor Space Index, and as-of-right potential before you invest in full drawings.
Architectural Design & Permits · Toronto & the GTA
From first sketch to your building permit, we handle every step.
In-house architects and permit specialists handle your design, zoning, and building permit approvals across the GTA, under one fixed-price contract.
Of building and renovating in Toronto
Completed across Toronto and the GTA
Fully insured and licensed for your protection
Fully itemized, line by line
Locked before work begins. No surprises
Design, build and warranty under one contract
Permit terrain
Does the design stay inside the zoning by-law: height, setbacks, coverage and FSI?
Is the property listed or designated on the City's Heritage Register?
Start above
Most projects are as-of-right, which is the shortest route. The two questions above are the ones that move a project onto a longer one, and if the answer is "I don't know yet", that is exactly what the zoning review settles first.

Design Build Services in Toronto
Our design-build approach combines design and construction under one roof, so we manage your project's timeline, budget, and quality control as one team, not a handoff between separate firms.
Our architects, designers, and project managers know the GTA's zoning bylaws and the City's permit process. By combining design and permit management, we close the usual gap between what looks good and what the City will actually approve.
We analyze your property for setbacks, Floor Space Index, and as-of-right potential before you invest in full drawings.
Every drawing is certified to meet the latest Ontario Building Code standards.

Design
We work with you to develop detailed design plans that align with your vision and budget, considering every layout, finish, and fixture for both function and style.
Custom designs suited to your site conditions and functional needs, balancing aesthetics with structural integrity.
We confirm your design meets local zoning regulations and land-use requirements from the outset.
A detailed review of municipal codes and by-laws before submission, so nothing stalls your application later.

Permits
Our team handles the entire permitting process, from zoning reviews to building approvals, and keeps your documentation accurate and on schedule.
We compile, prepare, and submit all required documentation, drawings, and forms.
We manage communication with city planners, inspectors, and departments directly, so issues get resolved without stalling your project.
If the city requests changes, we handle the updates and resubmit, advocating for your application until it's approved.

2026 Requirements
Obtaining a permit in Toronto in 2026 takes more than a drawing. Our team also handles this.
Confirming new builds meet the city's current sustainability and energy-efficiency tiers.
Navigating the "Changing Lanes" bylaws for secondary suites.
Streamlining the Preliminary Project Review process.
Our Process
A design-build project typically goes through the same four stages from concept to completion.
Site visits and preliminary reviews to confirm whether your vision fits within current zoning bylaws or needs a Minor Variance.
Detailed architectural drawings and 3D renderings, so you can see your project before a permit is even filed.
We identify and apply for the required permits, finalize designs, and prepare for construction.
We build to the approved plans and coordinate every mandatory city inspection to close your permit successfully.
The work

A ground-up custom home in Cliffcrest, where the 1950s bungalows on the Bluffs are steadily being replaced. Grey stone and limestone across the front, gabled dormers, and the garage set below the entrance so the main floor sits up off the street.

A three-storey infill on a narrow lot, eleven metres from established grade to the top of the parapet. Buff veneer brick under a black-clad set-back top floor.

The coffered ceiling, the panelled hood surround and the glass-front uppers either side of it were settled in the design render before a cabinet was ordered. It was built to match, down to the dark panelled island under a single run of stone.

Fifteen feet of bathroom, planned as three zones: a glass shower just over five feet square, a 6'-7" freestanding tub set under the window, and the water closet behind its own door.
Homeowner reviews
Grand Design Build did a rear addition, second storey, and all our bathrooms on a house in the Beaches. March to September 2025 — we were told end of September and moved back in the second week, so a bit ahead of schedule. Fixed price contract, and the final cost was exactly the contract number. That mattered a lot to us. We decided to change few items for bathrooms and kitchen halfway and there were no issues with the change orders, and the pricing was really fair even though a fixed contract was signed. There were no pushback. The office project coordinators and the site supervisor were really helpful the entire way through. They also kept the site tidy for six months straight and our neighbours never once complained. Respectful crew. Recommend them.
Allen and his team were a dream to work with. Truly an amazing experience and an incredible condo full renovation. The work was top notch and Allen was excellent to work with, respecting our ideas and desires and making our renovation dream a reality.
I had a really good experience working with Grand Design Build on my home renovation and rear addition project. Their team was professional, knowledgeable, and easy to work with throughout the process. They took the time to understand our needs, offered helpful suggestions along the way, and also provided complimentary interior design support, which was a great added value. They were responsive and attentive to questions as they came up, and the project stayed on track from start to finish. I would recommend Grand Design Build to anyone looking for a reliable custom build and design company in Toronto.
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. Overall, we had a very smooth experience with them. Highly recommended!
Grand Design Build exceeded every expectation we had. From the very first consultation, they were professional, transparent, and truly passionate about their work. If you’re considering custom home building in Toronto, you won’t find a more reliable and talented team. Our new home is stunning, and the attention to detail is second to none. We are so grateful for their dedication and highly recommend them.
Grand design build are a master in custom home building in Toronto for sure. They designed and built our place just exactly how we wanted it. They are very reliable when it comes to communication and planning.
Areas We Serve
We build throughout Toronto and the GTA. These are the neighbourhoods we work in most.
Can't find your neighbourhood?
We build across Toronto and the GTA. These are the ones we work in most, not the only ones we work in.

More of what we do

From rear additions to full second-storey builds, Grand Design Build manages everything in-house: design, permits, engineering, and construction. One team, one contract, zero guesswork.

Kitchen, bathroom, basement, and full home renovations, under one fixed-price contract.

A full-service process to build a laneway house in Toronto: design, permits, zoning and construction handled by one team, under one fixed-price contract.

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.

Project management led with precision and transparency: one point of contact from the first idea to the final inspection.
Frequently asked questions
If the answer you need is not here, ask us on the call. We would rather tell you now than at framing.
The timeline depends on the project's complexity. For "as-of-right" projects (those that follow all zoning bylaws), the City of Toronto typically aims for a 10 to 30-day review period. If your project requires a Minor Variance or a Committee of Adjustment hearing, the process can take 4 to 8 months. We manage the entire schedule so no time is wasted on incomplete applications.
In Ontario, you generally need a permit if you are increasing the building's footprint, making structural changes, adding or moving plumbing, or altering exits and fire separations. Cosmetic work like painting or replacing flooring usually doesn't need one. We review your specific scope and confirm before you spend money on drawings you don't need.
We handle the revision and resubmit it. Our team communicates directly with city planners and examiners to resolve the request and keep your timeline moving, rather than leaving that back-and-forth to you.
Yes. We navigate Toronto's "Changing Lanes" bylaws and the zoning applicable law certificates specific to secondary suites, on top of a standard permit application.
Start here
Tell us what you are thinking about. We will come and see it, and you will have a scope and a price broken down line by line within 48 hours.
Contact us (416) 920-6066