Danforth Village's stock of 1920s–1940s bungalows and semis — stretching along the Danforth corridor from Greektown to Woodbine — is well-suited for second storey additions that double living space without sacrificing location. Kopman Build has been building second storey additions on Toronto homes since 1999, and we know how to integrate a new upper floor seamlessly with an older structure.
Danforth Village is a family renovation market. Owners who bought into the neighbourhood for its walkability, school catchments, and transit access want more space — but not a different postal code. A second storey addition on an existing bungalow or semi is the most efficient way to get there: you keep the lot, the street, and the community while fundamentally transforming the home.
The housing stock along this stretch of the Danforth tends to be structurally honest — solid masonry or wood-frame construction from an era when things were built to last — but every property requires careful assessment before design begins. Load paths, party walls on semis, and existing mechanical systems all shape the scope and the budget.
Dustin Kopman founded the company in 1999 after growing up in construction through his family's firm, G&G Enterprise. Every project is managed by someone who understands the craft at the trade level — not just the sales pitch.
A complete upper floor added above an existing bungalow — bedrooms, bathrooms, and hallway — fully integrated structurally and architecturally.
Second storey additions on semis require party-wall coordination and structural analysis. We manage both, including any required neighbour notification.
Adding dormers to a 1.5-storey home to create full-height usable space on the upper level — a cost-efficient path to added bedrooms.
Dedicating the new upper floor to a primary suite with ensuite and walk-in — a popular scope for growing Danforth Village families.
Second storey additions often prompt updating older electrical panels, plumbing stacks, and HVAC — we coordinate all trades under one contract.
We offer full design-build delivery: architecture, engineering, permits, and construction managed by a single team from concept to occupancy.
We visit your Danforth Village property, review the existing structure, and document the project in writing — scope, budget, and timeline.
A detailed line-item estimate with allowances and contingencies, so you know the number before committing to anything.
We manage all City of Toronto permit applications, structural engineering, and any Committee of Adjustment filings — nothing falls through the cracks.
Full-time site supervision, weekly updates, and open-book cost tracking throughout. Your home is treated with care during an inherently disruptive scope.
Structured handover with all documentation, warranties, and a 12-month attendance window post-completion.
A full second storey addition on a Danforth Village bungalow typically runs $350,000–$650,000+ depending on the footprint, structural requirements, and finish level. Semis require additional party-wall coordination, which can affect cost and scheduling. Kopman Build provides a detailed pre-construction estimate before any commitment.
Yes. A second storey addition requires a building permit from the City of Toronto. Because many Danforth Village properties are semis or sit on lots with tight setbacks, a Committee of Adjustment minor variance application is sometimes also required. Kopman Build manages the full permit and approval process.
From permit approval to occupancy, a second storey addition typically takes 8–14 months. City of Toronto permitting can add 4–8 months before construction begins. We give you a realistic total timeline at the outset so there are no surprises.
Yes, though it requires careful structural planning and coordination with the shared party wall. Many Danforth Village semis from the 1920s and 1930s were built with party walls suitable for vertical expansion. Kopman Build assesses structural feasibility as part of the initial consultation and works with licensed structural engineers throughout the project.
Kopman Build builds second storey additions on Danforth Village bungalows and semis. No-obligation consultation — we come to your property.
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