Kingsway's 1920s and 1940s custom homes on generous ravine-adjacent lots are among Etobicoke's most coveted — and their basements often hold the neighbourhood's greatest untapped potential. Kopman Build brings the same custom-calibre standard to below-grade as above, delivering permitted, code-compliant basement renovations that match the character of one of Etobicoke's finest enclaves.
Kingsway's pre-war housing stock brings specific basement renovation challenges that generic contractors are rarely prepared for. Low original ceiling heights — often 6 to 6.5 feet in homes built between the wars — mean underpinning is frequently the starting point, not an optional upgrade. The proximity to the Humber River ravine also introduces moisture considerations that demand proper waterproofing strategy before any finishing work begins.
The neighbourhood's premium standing means finishes and details need to match the calibre of the home above. Kopman Build has worked across Etobicoke's most prestigious streets since 1999, and we understand that a Kingsway basement renovation is not the place to cut corners on materials, craftsmanship, or code compliance. Every project is permitted, inspected, and signed off — and built to last as long as the home it sits beneath.
Dustin Kopman founded the company in 1999 after growing up working in construction through his family's firm, G& G Enterprise. That hands-on background means every project is managed by someone who understands the craft — not just the sales pitch.
Full secondary suite creation compliant with Toronto zoning, Ontario Building Code, and City of Toronto Second Suite requirements — finished to Kingsway's custom standard.
Finished basement family rooms, home theatres, play areas, and entertainment spaces with proper insulation and sound isolation suited to Kingsway's generous floor plates.
Dedicated basement home offices with appropriate lighting, egress compliance, and electrical for modern work-from-home setups in Etobicoke's premium enclave.
New basement washrooms and ensuites, including rough-in plumbing, tiling, and fixture installation to complement the home's overall renovation standard.
Basement underpinning and bench-pinning to address the low ceiling heights common in Kingsway's 1920s–1940s housing stock before finishing begins.
Interior and exterior waterproofing, sump pits, weeping tile, and drainage solutions — essential preparation given Kingsway's Humber River ravine setting.
We visit your Kingsway 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 Kingsway typically runs $70,000–$140,000 for a high-quality finish suited to the neighbourhood's custom home standard. The 1920s–1940s housing stock often requires underpinning to achieve usable ceiling heights, which adds $35,000–$90,000 depending on depth and footprint. Legal secondary suites in Kingsway range from $90,000–$160,000+ fully permitted. Kopman Build provides detailed line-item estimates before any commitment.
Many Kingsway homes built in the 1920s and 1930s have basement ceiling heights of 6–6.5 feet — below the 6'9" minimum recommended for comfortable finished space and below the 6'5" (1.95m) required for a legal secondary suite. Underpinning or bench-pinning is a common first step in Kingsway basement renovations. Kopman Build handles both the structural underpinning and the subsequent finishing as a single managed project.
Kingsway is not a designated heritage district, but many properties are in lower-density residential zones with specific lot coverage and setback rules. Secondary suite permissions are governed by Toronto's city-wide Second Suite bylaw. Any structural work — including underpinning, new openings, or egress windows — requires a City of Toronto building permit. Kopman Build manages all permit applications, engineering consultants, and inspections.
A premium basement finish in Kingsway typically takes 10–16 weeks. If underpinning is required — which is common in the neighbourhood's pre-war housing stock — add 5–8 weeks before finishing begins. Legal secondary suites require additional inspections and systems work, typically extending the schedule to 14–20 weeks total. Kopman Build provides a detailed project schedule before construction starts.
Kopman Build delivers permitted, code-compliant basement renovations in Kingsway and across Etobicoke. No-obligation consultation.
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