High Park's surrounding streets are lined with 1910s–1940s homes — Edwardian and interwar houses with low basement ceilings, stone foundations, and limited natural light. Kopman Build specializes in transforming these older basements into legal secondary suites, finished family rooms, and home offices, navigating the structural and permit complexities that come with century-old construction.
Park proximity drives premium in this neighbourhood. Homes around High Park command strong resale values, making a well-executed basement renovation one of the highest-return investments available — whether you're adding a legal secondary suite for rental income or finished living space that buyers will pay for. The key is doing it right: properly permitted, structurally sound, and code-compliant from the first nail to the final inspection.
The varied 1910s–1940s housing stock in High Park demands a contractor who understands heritage construction. Stone and brick foundations, low headroom, aging services, and existing knob-and-tube wiring all require careful assessment before any finishing begins. Kopman Build has worked extensively in this neighbourhood's older homes — we know what to look for and how to plan around it.
Dustin Kopman founded the company in 1999 after growing up working in construction through his family's firm. That hands-on background means every High Park project is managed by someone who understands the craft, not just the sales pitch — and who won't be surprised by what's behind the walls of a 100-year-old house.
Full secondary suite creation compliant with Toronto zoning, Ontario Building Code, and City of Toronto Second Suite requirements — including egress, fire separation, and dedicated mechanical.
Finished basement family rooms, home theatres, and play areas with proper insulation, sound isolation, and lighting suited to older-home basements.
Dedicated basement home offices with appropriate egress compliance, modern electrical, and natural or designed lighting for daily work-from-home use.
New basement washrooms and ensuites, including rough-in plumbing, tiling, and fixture installation in homes where plumbing access requires careful planning.
Basement underpinning and bench-pinning to increase ceiling height — essential for many of High Park's pre-war homes to reach livable and code-compliant headroom.
Interior and exterior waterproofing, sump pits, and drainage solutions for the stone and block foundations common in this neighbourhood's older housing stock.
We visit your 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 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.
Basement renovation in High Park typically costs $65,000–$140,000 for a standard finish. The 1910s–1940s homes common to this neighbourhood often require additional work — waterproofing aging stone or block foundations, upgrading knob-and-tube wiring, and underpinning for low ceilings — which can add $30,000–$80,000+ to the overall budget. We provide detailed, line-item estimates before any commitment.
Many of the pre-war homes around High Park have basement ceiling heights below the 1.95m minimum required for a legal secondary suite, and below the 2.1m–2.2m most owners want for a comfortable living space. Underpinning or bench-pinning can increase ceiling height by 12–24 inches. Kopman Build assesses your existing foundation and recommends the right approach before any finishing work begins.
Yes. High Park falls within the City of Toronto's zoning that permits second suites in most residential properties. Your basement must meet Ontario Building Code minimums for ceiling height, egress windows, fire separation, and dedicated heating. Given the age of the housing stock in the area, most projects also require foundation waterproofing and electrical upgrades. Kopman Build handles permitting, inspections, and all required code work from start to finish.
A standard basement finish in a High Park home takes 10–16 weeks. If underpinning is required to increase ceiling height, add 4–8 weeks before finishing can begin. A full legal secondary suite — including plumbing, fire separation, egress windows, and mechanical — typically runs 14–20 weeks. Older homes often surface unexpected conditions during demolition; we build contingency time into our schedules accordingly.
Kopman Build delivers permitted, code-compliant basement renovations in High Park and across Toronto. No-obligation consultation.
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