Home Additions in North York
From second storeys on postwar bungalows in Lansing, Newtonbrook and Willowdale to rear extensions in Don Mills and York Mills, we design and build North York home additions from our office on Yonge Street.
Why North York Additions Need a Different Approach
Much of North York was built in the 1950s and 1960s, and the bungalows and side-splits of Willowdale, Lansing, Newtonbrook, Bayview Village and Don Mills sit on some of the more generous lots in the city. That makes North York one of the best places in Toronto to add space instead of moving: a second storey on a bungalow, a rear family room and kitchen extension, or both.
North York is also one of the busiest areas in the GTA for teardown-and-rebuild, which shapes what neighbours and the Committee of Adjustment are used to seeing. A well-designed addition keeps more of the existing house, avoids demolition and often needs fewer variances than a full rebuild. We help you decide which route makes sense for your lot before you pay for drawings.
Every North York addition follows the City of Toronto process: a zoning certificate, a minor variance if the design breaks a zoning rule, and then the building permit. In 2025 the next available North York Committee of Adjustment hearing was about six weeks out. Lots backing onto the Don River ravines may also need a TRCA permit. Our office is at 6021 Yonge Street, minutes from most North York projects.
- Licensed & insured contractors
- Transparent, itemized pricing
- Permits & approvals handled for you
- On-time delivery, every project
Home Additions We Build in North York
Every kind of North York addition and extension, from a few extra feet to a whole new floor.
Second-Storey Additions
A full new floor on a Willowdale, Lansing or Newtonbrook bungalow, with structural review of the existing house.
Rear Extensions
Larger kitchens, family rooms and main-floor bedrooms built out the back of the house.
Side-Split Additions
Adding a level or extending over the garage on the side-splits common across North York.
Bump-Outs
A few extra feet for a kitchen, primary bedroom or mudroom, with the same zoning check and permit.
Additions Instead of Rebuilds
Keeping the existing house and adding to it, often with fewer variances than a full teardown.
Ravine Lot Additions
Additions on lots backing onto the Don valley system, coordinated with TRCA review.
What Makes an Addition in North York Different
These are the things that actually decide what you can build in North York, how long approvals take and what it costs.
1950s and 1960s Lots
Many North York bungalows sit on wide, deep lots with room to build up or out without crowding the yard.
Zoning Certificate First
Toronto requires a zoning certificate before a permit application is complete. The 2026 fee for a house addition is $644.38.
Committee of Adjustment
The 2026 minor variance fee is $2,228.98. North York hearings were about six weeks out in 2025.
Reduced Setbacks
Since November 21, 2025, most minimum setbacks are deemed 90% of the by-law figure, except within 120 m of a ravine or 300 m of a railway.
Ravine Regulation
Lots backing onto the Don ravines may sit in a TRCA regulated area and need a separate permit before construction.
Large Additions Need Notice
Additions over 100 m² must post a public infill notice at the property when the permit is applied for.
What a Home Addition Costs in North York
Across the GTA, a small bump-out typically costs $30,000 to $70,000, a single-storey rear or side addition $80,000 to $200,000, and a second-storey addition $150,000 to $400,000 or more. Per square foot, most single-storey additions land between $300 and $500, and second storeys between $350 and $550, because the existing structure has to carry the new floor and a staircase is added.
In North York, lot size often makes a larger addition practical, so projects here tend to sit toward the middle and top of these ranges. A second storey on a bungalow is the most common large project; a rear extension with a new kitchen costs more than one built as a family room. Budget separately for the survey, drawings, engineering, approvals and a 10 to 15% contingency.
North York Neighbourhoods We Serve
We build additions right across North York from our office on Yonge Street.
Our Simple 5-Step Process
From the first site visit to the final inspection, we make adding space to your North York home clear and stress-free.
Reach Out
Call us or fill out our quick form to tell us how much space you need.
Free Consultation
We visit your home, review your lot and zoning, and talk through design, budget and approvals.
Detailed Estimate
You receive a transparent, itemized estimate within 2 to 3 business days.
Review & Refine
We walk through the proposal together until you are fully confident.
Sign & Start
We lock in your start date and handle scheduling, permits and coordination.
Recent Additions and New Living Space
A look at additions, extensions and new living space we have built across Toronto and the GTA.
North York Home Addition FAQs
How much does a home addition cost in North York?
How long does a home addition take in North York?
Is it better to add on or rebuild in North York?
Do I need a permit for a home addition in North York?
How long does the City take to issue an addition permit?
Do you have an office in North York?
Ready to Add Space to Your North York Home?
Book a free consultation. We will check what your lot allows, tell you which approvals your design needs and give you an itemized estimate.
Serving North York from our North York office — 6021 Yonge St, North York, ON M2M 3W2 · All North York renovation services