Topdown Renos builds home additions in Etobicoke, covering The Kingsway, Alderwood, Long Branch, Mimico and Islington. A 400 sq ft rear addition typically lands at
Home additions in Etobicoke are some of our busiest projects. Lot sizes in established Etobicoke neighbourhoods support rear and side additions that would not fit on smaller central Toronto lots, and the housing stock includes hundreds of post-war bungalows ready for second-storey additions. We have built rear additions in The Kingsway, two-storey additions in Mimico, and full second-storey additions on Alderwood bungalows.
Most Common Etobicoke Addition Projects
- Two-storey rear addition (400 to 800 sq ft). Adds kitchen and family room downstairs, primary bedroom upstairs. Most popular project type in Etobicoke.
- Full second-storey addition on a bungalow (800 to 1,200 sq ft). Doubles usable floor area on Alderwood, Long Branch and other post-war bungalows.
- One-storey rear addition (200 to 400 sq ft). Common when expanding a kitchen or family room without changing the upstairs.
- Side bump-out (50 to 100 sq ft). Often used to expand a kitchen or primary ensuite where lot setbacks allow.
- Heritage-respecting addition in The Kingsway. Brick-matched, roofline-respecting addition that often blends with original architecture.
Etobicoke Permit and Zoning Considerations
Etobicoke is part of the City of Toronto, so building permits and zoning bylaws are issued by the City of Toronto. Common Etobicoke zoning challenges:
- Lot coverage limits. Many established neighbourhoods cap lot coverage at 33 to 35 percent. Additions often push over this and require Committee of Adjustment.
- Side yard setbacks. Required side setback varies by zone; bump-outs often need a minor variance.
- Floor space index. Some zones cap total floor area as a ratio of lot area.
- Heritage Conservation Districts. The Kingsway and parts of Mimico fall within HCDs, requiring heritage permit approval for visible exterior work.
Reference: City of Toronto zoning bylaws and City of Toronto building permits.
Pricing for Etobicoke Additions
- Bump-out (50 to 100 sq ft): $50,000 to $120,000
- One-storey rear addition (200 to 400 sq ft): $150,000 to $320,000
- Two-storey rear addition (400 to 800 sq ft): $300,000 to $600,000
- Full second-storey on a bungalow (800 to 1,200 sq ft): $400,000 to $750,000
- Heritage-matched addition in The Kingsway: $500,000 to $900,000+
What an Etobicoke Client Recently Said
"Had a second-floor addition done on our bungalow in Etobicoke. The structural work was complex but they managed the whole process including permits. Added 800 sq ft and it looks like it was always there." - James T., Etobicoke
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Frequently Asked Questions
How much does a home addition cost in Etobicoke?
Etobicoke home additions run $400 to $700 per square foot. A 400 sq ft rear addition typically lands at $180,000 to $300,000. A full second-storey addition on an Alderwood bungalow runs $400,000 to $700,000 depending on size and finish level.
Do I need a Committee of Adjustment in Etobicoke?
Often, yes. Many Etobicoke neighbourhoods have lot coverage, side-yard setback or floor space index limits that an addition will exceed. Committee of Adjustment minor variances add 3 to 5 months to the timeline.
Can I add a second storey to my Alderwood bungalow?
Most Alderwood and Long Branch bungalows can accept a wood-framed second storey if the existing foundation passes engineering review. Some require helical piles or footing extensions. We engage the structural engineer during the design phase.
Are there heritage rules in The Kingsway?
Some Kingsway streets have heritage designations or sit within Heritage Conservation Districts. Exterior changes including additions visible from the street need heritage permit approval. We confirm heritage status during the estimate.
How long does an Etobicoke addition take?
Permit phase runs 4 to 8 months including Committee of Adjustment if needed. Construction runs 4 to 8 months depending on size. Plan for 9 to 14 months end-to-end for a typical Etobicoke rear or second-storey addition.
Free Etobicoke Addition Estimate
Tell us about your project. We will visit your home, discuss the addition scope, and prepare a written quote.