Forest Hill's 1920s–1950s custom homes — across both the North and South districts and along Forest Hill Village — are among Toronto's most architecturally considered properties, and adding onto them demands the same standard. Kopman Build has been building home additions in Forest Hill and across Toronto since 1999, with second-storey additions and rear extensions that integrate structurally and visually with the existing home.
Forest Hill is a premium custom home market where the cost of acquiring a larger property far outpaces the cost of intelligently expanding the one you already own. A well-executed second-storey addition or rear extension on a Forest Hill home delivers substantial additional living space while preserving the lot, the address, and the neighbourhood connection that made the property valuable in the first place.
Working on homes built between the 1920s and 1950s requires more than standard construction competence. These homes have character worth protecting — original masonry, distinctive window proportions, period detailing — and any addition must be designed and built to extend that character, not contradict it. Kopman Build coordinates architects with direct experience in period-sensitive design on every Forest Hill project.
South Forest Hill's proximity to the Eglinton subway corridor also means that thoughtfully expanded homes here hold strong long-term value. Dustin Kopman founded the company in 1999 after working through his family's firm, G&G Enterprise, and that hands-on background informs how every Forest Hill project is managed — with direct oversight, not delegation to a rotating crew.
Full second-storey additions on Forest Hill bungalows and storey-and-a-half homes — doubling living space without leaving the lot or the neighbourhood.
Single-storey and multi-storey rear additions that extend your main floor, carefully integrated with the existing structure and exterior detailing.
Combined whole-home gut renovations with addition components — common on Forest Hill properties undergoing a complete transformation.
Formal entry additions and mudroom extensions designed to complement the architecture of older Forest Hill homes without disrupting the street elevation.
Converting attached or detached garages into living space, home office, or ancillary accommodation as permitted under current zoning.
Garden suites in rear yards under Toronto's expanded as-of-right zoning — assessed property by property for feasibility and fit.
We visit your Forest Hill property, listen to your goals, 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.
We manage all permit applications, engineering consultants, and any Committee of Adjustment approvals — nothing falls through the cracks.
Full-time site supervision, weekly updates, and open-book cost tracking throughout the project.
Structured handover with all documentation, warranties, and a 12-month attendance window post-completion.
Forest Hill is a premium custom home market, and addition costs reflect that. A rear addition typically runs $250,000–$500,000+ depending on size and finish level. A full second-storey addition on a Forest Hill bungalow or split-level runs $400,000–$700,000+. The quality of materials and detailing expected in this neighbourhood means budgets trend toward the upper range. Kopman Build provides a detailed pre-construction estimate before any commitment.
Yes. All home additions in Forest Hill require City of Toronto building permits. Many Forest Hill properties also fall under Residential Infill requirements and may need a Committee of Adjustment minor variance if the proposed addition exceeds as-of-right zoning permissions for lot coverage, setbacks, or height. Kopman Build manages the full permit and approval process, including any Committee of Adjustment applications.
Yes — second-storey additions are among the most common projects we undertake in Forest Hill. Many of the neighbourhood's 1920s–1950s homes — particularly in Forest Hill South and along the Village streets — are single-storey or storey-and-a-half homes on premium lots where adding a full second floor dramatically increases livable space and long-term value without sacrificing the property.
Architectural continuity is central to any addition on an older Forest Hill home. We work with architects experienced in period-sensitive design — matching brick tone and coursing, replicating original window proportions, and detailing eaves and trim consistently with the existing structure. The goal is an addition that reads as part of the original building, not an obvious afterthought, which also protects resale value in this design-conscious market.
Kopman Build builds home additions across Forest Hill and Toronto. No-obligation consultation — we come to your property.
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