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Home Additions in Toronto and the GTA

Rear, side and second-storey additions across Toronto and the GTA.

 

Designed, permitted, and built by one in-house team.
 

No architects to chase, no subcontractors to manage, and no gaps between design and construction.

Get a free, no-obligation estimate

Same day or next day site visits available. No cost, no obligation.

Home additions from $400–650/sq ft

Design, engineering and City of Toronto permits included. Written free estimate before you commit to anything.

Minimum 2-year warranty

Every project backed by a warranty of at least two years.

Licensed trades

Qualified electricians and plumbers, fully WSIB-insured on every job.

$5 Million Coverage

Every project insured, so you're never on the hook if something goes wrong.

Fixed Price

Your price is locked in before work starts, with no surprise changes.

Architect Project Manager

    Your dedicated project manager is an architect, ensuring great design from day one.

Clear Contract

A written agreement covering the work, price, and timeline, before we start.

15+ years in the GTA

Our contractors have 15+ years experience across additions, kitchens, and bathrooms.

Code Compliant

We handle permits, drawings, and inspections, so you don't have to.

What kind of addition fits your home

Rear Addition

A rear addition extends the main floor for a larger kitchen, family room, or dining area. The goal is to connect the new space naturally with the existing layout, so the addition feels planned instead of patched on later.

Modern home additions Toronto featuring a backyard deck.
Modern glass sunroom home additions Toronto

Side Addition

A side addition can add a mudroom, entrance, bedroom, or extra main floor space. We review the available lot space, setbacks, and zoning rules before design begins, so the plan starts with the right constraints.

Second floor addition

A second floor addition adds bedrooms, a home office, or a full upper level without touching your backyard. Because this involves building on top of the existing structure, we start with a foundation and structural assessment to confirm what the house can support and what engineering is needed.

Modern rear home additions Toronto with wooden deck

What homeowners say about working with us

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"The work was timely and of top-notch quality! I couldn't be happier with the results."

- Richard Lash, Toronto

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"Guys, my home addition looks fabulous and so well built. It looks like it has always been part of my home"

- Winny Ko, Toronto.

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"Every contractor who came through was super polite and got the job done fast.  

- Danielle Perry, Mississauga.

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"Very happy with the results. The house now has more space for our in laws, and the work was flawless"

- Max L., Leslieview

Our home addition renovation process

01

Consultation

We visit your home, listen to your ideas, and we provide a clear plan and price.

02

Design

Our team creates the design and take care of the paperwork. Once you are happy, we begin the renovation.

03

Construction

We begin construction, coordinate all inspections, and deliver the completed project.

What to expect from your home addition contractor

Home additions involve design, engineering, permits, structural work, several trades and careful scheduling.


We plan the details before construction begins, protect your home while we work, coordinate the trades and keep you informed until the project is complete.

Before construction

Clear scope, contract, and pricing

Design included

Start and completion dates

Financing options

Discounted finishes

During construction

One project manager

Protection for your home

Permits and inspections

Licensed trades

A clean, organized work area

After construction

Final walkthrough

Final cleanup

Warranty of at least two years

Support after completion

Recent project: a High Park home addition

This existing addition rotted framing and glazing past its life. We took it down and rebuilt it completely: new, structure, insulation, glazing and finishes.

After-closeup

Renovate now. Pay over time.

Flexible financing options are available through iFinance for eligible renovation projects.

Monthly payment options

Terms from 12 to 84 months

Financing can help you spread the cost of your renovation over a payment period that works for you.

Home addition FAQ

How much does a home addition cost in Toronto?


Most home additions in Toronto fall between $400 and $650 per square foot. The final cost depends on the size of the addition, the existing structure, foundation and structural work, exterior materials, interior finishes, and whether the new space includes a kitchen or bathroom. This range is a planning starting point, not a quote — after a site visit, we prepare a detailed estimate based on your home and your plans, so you know the real number before any work begins.

Do I need approval from the city before I can build my addition?
Every addition in Toronto goes through a zoning review before a building permit is issued. Most projects comply with existing zoning rules, but if your addition exceeds height, setback, or lot coverage limits, it may need a minor variance from the Committee of Adjustment — a process that typically adds a few months. We check your zoning situation early, before you've invested in a full design, so you know which path you're on from the start.

How much does it cost to add a second storey in Toronto?
Adding a second storey is typically the most involved type of home addition, and most projects in Toronto fall between $450 and $700 per square foot. The cost depends on the condition of the existing foundation and structure, the size of the new floor, roof and staircase work, mechanical and electrical upgrades, and the finishes you choose. Because the existing house carries the new floor, a structural review is part of the planning. After a site visit, we prepare a detailed estimate so you know the full cost before construction begins.

How do I know you're actually qualified to do this kind of work?
Fair question — it's worth asking any contractor. We're licensed, insured for $5M, WSIB covered, and HomeStars verified, and we're happy to show you completed addition projects in your specific neighbourhood, not just kitchens or bathrooms, so you can see work comparable to what you're planning.

Will I be dealing with a different person at every stage of the project?
No — one project manager stays with you from your first call through the final walkthrough, including all permit coordination, trade scheduling, and inspections. You're not re-explaining your project to a new face every time something moves to the next phase.

Home renovations across Toronto and the GTA

Toronto and surrounding areas:
Toronto, Etobicoke, North York, Scarborough, East York, and York

West GTA:
Mississauga, Oakville, Burlington, and Milton

North GTA:
Vaughan and Richmond Hill

Prefer to talk? (437) 607-3633

You'll reach a person, not a call centre.

Get a free, no-obligation estimate

Same day or next day site visits available. No cost, no obligation.

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