Toronto Architecture Firm for Custom Homes, Commercial Buildings & Multiplexes Across the GTA

Quadrant Architects is an OAA–licensed Toronto architecture firm trusted throughout the GTA to solve complex zoning challenges, streamline building permits, and design residential, commercial, industrial, and hospitality spaces that work flawlessly and look remarkable.

We navigate Toronto and GTA zoning laws and building codes, so your project moves
forward smoothly and without costly delays

Architectural SERVICES

Got Questions? Get Expert Guidance

RESIDENTIAL ARCHITECTS IN TORONTO & THE GTA

DESIGNS THAT ELEVATE EVERYDAY LIFE - HOMES, SUITES, AND ADDITIONS THAT LOOK REMARKABLE AND ARE ENJOYABLE TO LIVE IN EVERY DAY

Modern custom house design in North York by Quadrant Architects

RESULTS THAT MATTER TO YOU

  • Clear – We cut through Toronto’s by-laws and show you exactly what your property allows – no guesswork, no surprises.
  • Compliant – Drawings and permits prepared to satisfy zoning, OBC, heritage, and Committee of Adjustment requirements, so approvals move faster.
  • Compelling – Designs that elevate everyday life – homes, suites, and additions that look beautiful and function effortlessly

WHAT WE DELIVER

  • Homes tailored to your lifestyle – custom builds, infills, and full replacements designed around your lot and how you want to live.
  • More space without moving – additions and renovations that expand living areas while keeping you in the home you love.
  • Legal rental suites for extra income – laneway, garden, and basement suites designed as compliant, income–ready rentals.
  • Multiplex conversions that unlock zoning potential – projects that take advantage of Toronto’ updated bylaws to maximize property use.
  • Heritage renovations with modern value – preserving character while unlocking grants, incentives, and long–term livability
  • Homes tailored to your lifestyle
  • More space without moving 
  • Legal rental suites for extra income
  • Multiplex conversions that unlock zoning potentia
  • Heritage renovations with modern value
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COMMERCIAL ARCHITECTS IN TORONTO & THE GTA

COMMERCIAL SPACES THAT DELIVER MORE — DESIGNED TO OPEN SOONER, ATTRACT TENANTS, AND DELIVER LASTING RETURNS

Medical office design service in Scarborough, Ontario

RESULTS THAT MATTER TO YOU

  • Clear – Straight answers on approvals, timelines, and budgets- so you can plan with confidence
  • Compliant – Permit – ready drawings that meet zoning by-laws and Ontario Building Code requirements the first time – accelerating approvals and reducing risk.
  • Compelling – Retail, office, and mixed-use spaces that attract tenants, welcome customers, and deliver lasting value

WHAT WE DELIVER

  • Faster retail and office openings – fit-outs designed to get businesses operating sooner and generating revenue faster.
  • Ground-up builds without delays – layouts planned for compliance, flexibility, and long-term value.
  • Profitable property transformations – adaptive reuse projects that convert underused spaces into income-producing assets.
  • Planning approvals – Committee of Adjustment and change-of-use applications prepared and defended for approval success
  • Faster retail and office openings
  • Ground-up builds without delays
  • Profitable property transformations
  • Planning approvals
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HOSPITALITY ARCHITECTS – HOTELS & RESORTS IN ONTARIO

HOTELS AND RESORTS THAT WIN NEW VISITORS AND EARN REPEAT BOOKINGS, DESIGNED TO IMPRESS GUESTS, SIMPLIFY OPERATIONS, AND GROW REVENUE.

RESULTS THAT MATTER TO YOU

  • Clear – A structured process from concept to completion – giving you visibility, accountability, and confidence at every stage.
  • Compliant – Accessibility, brand standards, fire safety, and Ontario Building Code requirements built into every drawing set – reducing delays and avoiding costly rework.
  • Compelling – Guest-focused designs that attract new visitors and earn repeat bookings – resulting in premium rates and long-term profitability.

WHAT WE DELIVER

  • Guest spaces that impress – lobbies, dining areas, spas, and suites designed for comfort, flow, and visual impact.
  • Efficient back-of-house layouts – reducing wasted steps, improving staff productivity, and lowering operating costs.
  • Seamless brand integration – full coordination with hotel operators and brand reps to ensure compliance and a consistent brand experience
  • Guest spaces that impress
  • Efficient back-of-house layouts
  • Seamless brand integration
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INDUSTRIAL ARCHITECTS IN TORONTO, THE GTA & ONTARIO

INDUSTRIAL SPACES DESIGNED FOR THE WAY YOU WORK - EFFICIENT TODAY, FLEXIBLE FOR TOMORROW

Industrial Architecture design in Markham by Quadrant Architects

RESULTS THAT MATTER TO YOU

  • Clear – Site plans, layouts, and construction timelines planned around your operations – keeping workflow predictable and downtime minimized.
  • Compliant – Ontario code and safety standards planned in from the beginning – so your project avoids delays and costly rework.
  • Compelling – Facilities that cut operating costs now and scale seamlessly with your business as it grows.

WHAT WE DELIVER

  • Warehouses built for efficiency – optimized racking, truck flow, and dock access to keep goods moving smoothly.
  • Manufacturing plants that boost productivity – process-driven layouts that improve output and ensure worker safety.
  • Specialized facilities for critical needs – tailored spaces for cold storage, pharmaceuticals, and e-commerce fulfillment.
  • Energy-efficient systems with lasting savings – designs that lower utility costs and qualify for Ontario rebates and incentives.
  • Warehouses built for efficiency
  • Manufacturing plants that boost productivity
  • Specialized facilities for critical needs
  • Energy-efficient systems with lasting savings
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ARCHITECT INTERIOR DESIGN SERVICES IN TORONTO & THE GTA

ARCHITECT-DESIGNED INTERIORS THAT DELIVER ON EVERY LEVEL

RESULTS THAT MATTER TO YOU

  • Clear – Technical awareness before design begins, showing you what’s truly possible with your structure, systems, and space.
  • Compliant – Interior layouts developed with full consideration of mechanical, electrical, and structural requirements, minimizing conflicts and delays.
  • Compelling – Sophisticated commercial and residential interiors that elevate experiences, boost productivity, and increase property value.

WHAT WE DELIVER

  • Offices that attract top talent – workplaces designed for smooth approvals and optimized for employee performance.
  • Retail spaces that maximize revenue – customer flow planning, coordinated layouts, and branded interiors that drive sales.
  • Healthcare facilities that exceed standards – medical offices designed for compliance, efficiency, and patient comfort.
  • Residential interiors with lasting value – architect-designed homes and condos blending luxury finishes with technical excellence.
  • Strategic repositioning that unlocks potential – adaptive reuse and change-of-use transformations that turn underperforming properties into profitable spaces.
  • Offices that attract top talent
  • Retail spaces that maximize revenue
  • Healthcare facilities that exceed standards 
  • Residential interiors with lasting value
  • Strategic repositioning that unlocks potential
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LAND DEVELOPMENT & SEVERANCE IN TORONTO, GTA & ONTARIO

TURN ONE PROPERTY INTO MULTIPLE OPPORTUNITIES

Three modern homes built after lot severance in Toronto showing multiple properties created from single lot development.

RESULTS THAT MATTER TO YOU

  • Clear – Feasibility studies that reveal what your property can support under current zoning by-laws and municipal requirements, so you plan with confidence.
  • Compliant –Applications for lot severance, subdivision, rezoning, and minor variances prepared to satisfy the Ontario Building Code (OBC) and local by-laws.
  • Compelling –Development strategies that increase density, add value, and create projects that strengthen communities.

WHAT WE DELIVER

  • Land severance that creates sellable lots – Split single properties into multiple parcels, multiplying value without rezoning delays
  • Toronto subdivision planning with faster approvals –  Integrated servicing and parkland design that municipalities actually approve
  • Rezoning for higher density development –  Official plan amendments that transform single lots into multi-unit opportunities
  • Build more without the rezoning delays – Strategic applications that maximize building potential without full rezoning
  • Development feasibility before you spend – Zoning analysis revealing what’s actually possible on your property
  • Land severance that creates sellable lots 
  • Toronto subdivision planning with faster approvals 
  • Rezoning for higher density development
  • Build more without the rezoning delays
  • Development feasibility before you spend
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Portfolio

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Meet Our Team

Every member of our team has advanced education in architecture and design

Sara Rahgozar

M.Arch Architect, OAA
Principal

Farzad Esnaashari

M.Arch Architect., OAA
Principal

Sean K. Zadeh

M.Arch.BCIN
Principal

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What’s Clients Say

I’ve had the great pleasure of collaborating with Studio Quadrant on several projects, interior and architectural design for 3 town house, 4 semi-detached and my own detached house in Ottawa. Studio Quadrant, the driving force behind the firm has a unique way of balancing environmental stewardship, great design, and realistic budgets. They never cease to impress me with their ability to come up with ideas on unique design, weaving them together in beautiful, creative ways. The studio’s attention to detail doesn’t stop at design, they stay with the project through construction and add real value to the process. They made working together enjoyable and brought an intense committed work ethic to the team. I look forward to our next opportunity and highly recommend them to those who are looking for a fresh take on their projects. They will bring ideas to the table that have real meaning.
Peyman Sheikhghasemi
Peyman SheikhghasemiPrincipal at My Home Builder Corporation
Studio Quadrant designed my modern, new house in Scarborough Bluffs. The final product is above an beyond expectations! Studio Quadrant was creative, detailed and thorough. They also helped during the committee of adjustment process, and the result was more than my expectation. Studio Quadrant designs were very creative and responded directly to my needs. and I would highly recommend them to others looking for both commercial and residential architecture and interior services, and I would pass their information on to friends and family without hesitation.
Violet Farid
Violet FaridReal Estate Agent
We were particularly excited about the creative solutions from Farzad, which were always developed anew on the basis of our ideas. Right the first planning distinguished itself by an excellent and individual design. The various 3D display variants always gave us a very detailed feeling for the planned living space. The adjustment and coordination during the planning process was always a pleasure – despite the distance (from Germany), we experienced simplicity here. The matching, consulting, and tuning of the plans was possible any time and was characterized by a high level of engagement and absolute flexibility. Thank You Farzad!!
Michael Schafisade
Michael SchafisadeAccount manager