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TORONTO · DESIGN. PERMIT. BUILD.

Home Renovations and Additions in Toronto

905 Reno is a design-build contractor based in North York. We design, permit and build home additions, second storeys, full home renovations, kitchens, bathrooms and basements across Toronto, with one team from the first site visit to move-in. Site visits are free.

Before and after of a house on Delaware Ave N in Toronto with new front and rear extensions and a third floor
566 Delaware Ave N, Toronto: before, and after the front and rear extensions and a new third floor.
45+ five-star Google reviewsWSIB and $5 million liability insurance2-year workmanship warrantyFeatured on HGTV's StyledToronto Star feature, January 11, 2025

Our recent work in Toronto

Real Toronto jobs, real photos. Every one was designed, permitted and built by our team.

Rear of the house on Delaware Ave N with the new rear extension, third floor and deck
ADDITIONS · THIRD FLOOR

566 Delaware Ave N

Rear and front extensions plus a new third floor. The foundation was strengthened and the basement slab repoured.

See the project
Before and after of a two-storey rear addition on Eileen Ave in Toronto
TWO-STOREY REAR ADDITION

Eileen Ave, York

A rear addition with a second floor above and a full basement under it, about 1,000 sq ft, plus an interior remodel.

Third-floor ensuite with a double vanity and lit mirrors on Logan Ave
ADDITION · ATTIC CONVERSION

Logan Ave

A rear addition, the attic turned into a third-floor bedroom and ensuite, and a rooftop deck.

New kitchen after a full gut renovation on Palmerston Gardens
FULL GUT RENOVATION

Palmerston Gardens

A full gut interior renovation, taken down to the brick and the joists, with a new kitchen, bathrooms, floors and stairs.

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Before and after of a condo kitchen on Yonge St in Toronto
CONDO RENOVATION

Yonge St condo

New flooring throughout, a new kitchen, a renovated bathroom, built-ins, smooth ceilings, lighting, paint, doors and trim.

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Permits in Toronto, plainly

The City of Toronto has its own zoning by-law and building department. Here is what that means for your project.

  • Every addition needs a building permit, and so do structural changes, new plumbing and second suites
  • Zoning By-law 569-2013 sets how deep, wide and tall you can build. Past those limits, the design needs a minor variance from the Committee of Adjustment first, which adds months
  • The City aims to review a complete house application within 10 business days. Overall, permits take 1 to 4 months, longer with a variance
  • We prepare the drawings, the engineering and the application, and answer the examiner's comments. See the City's small residential additions guide

How it works

  1. 1Site visitFree. We see the house and hear what you need
  2. 2Budget rangeBefore any drawings are done
  3. 3Design and drawingsPriced as they come together
  4. 4EngineeringStructure sized and sealed
  5. 5PermitWe apply and answer the examiner
  6. 6BuildThe same team that designed it

Where we work in Toronto

Across the city, including Riverdale, York, Palmerston and the west end. We also work in North York, Scarborough, Etobicoke, Mississauga, Markham and across the GTA.

Questions we get asked in Toronto

Do you charge for a site visit?

No. Site visits are free.

Do I need a permit for an addition in Toronto?

Yes. Every addition needs a building permit, whether it goes out the back or up. Drawings, engineering and a zoning review come first.

How long does an addition take in Toronto?

Plan on 2 to 6 months for design and approvals and 5 to 9 months of construction, depending on the size of the job.

What does an addition cost in Toronto?

As a rough budget, $300 to $500 per sq ft, depending on finishes and the type of work. See our home addition cost guide.

Planning a renovation in Toronto?

Send us a few photos or your survey and we'll come out and walk the house with you. Site visits are free.

Design. Permit. Build. We stand behind every space we build.