Custom Builds, Renovations & Additions
Custom Builds, Renovations & Additions in Willowdale
One of the most active custom build neighbourhoods in Toronto. Wide lots, mature streets, and teardown economics that work the way they do almost nowhere else in the city.
Willowdale has become one of the most active custom build neighbourhoods in Toronto. The 1950s and 1960s ranch bungalows, split-levels, and side-splits that defined the area for decades are being steadily replaced with custom homes designed for how families live now, larger, lighter, and built to a standard the original stock was never meant to reach. Wide lots, mature streets, and proximity to the Yonge subway line keep demand high, and the teardown-and-rebuild economics in Willowdale work in ways they don’t in most of the city. Grand Design Build has been working in Willowdale and across North York since 2010, and every project we take on comes with a fixed-price contract, full HCRA licensing, and full insurance on every project.
The Housing Stock
What Building in Willowdale Looks Like
Most of the original Willowdale housing stock was built between the late 1940s and the early 1970s, predominantly modest ranches, bungalows, and split-levels on lots that were generous for their era and are even more so by today’s standards. As the families that originally bought these homes have aged out and the area has remained desirable, the natural lifecycle has been teardown and rebuild. New builds in Willowdale typically range from 3,500 to 7,000 square feet on the same footprint or expanded, designed to take full advantage of the lot, the canopy, and the streetscape.
The work in Willowdale is dominated by custom builds, but renovations and additions matter too, particularly on homes from the 1980s and 1990s that don’t justify teardown but need significant updating. Underpinning for basement height and rear additions for kitchen-and-family-room expansion show up regularly.
What We Do
Services We Offer in Willowdale
Custom Homes
The most common Willowdale project. Ground-up custom homes typically 3,500 to 7,000 square feet, with architectural design, structural engineering, demolition, and construction handled in-house. Most projects begin with the existing home being torn down.
Home Additions
Rear additions, second-storey additions, and full renovation-plus-addition projects on homes that don’t justify a full teardown. Common on 1980s and 1990s Willowdale homes.
Home Renovations
Full-home renovations on Willowdale homes that have the bones to support major reconfiguration without a teardown. Layout changes, kitchen and bathroom rebuilds, structural openings, and finish-level upgrades.
Basement Underpinning & Finishing
Where existing Willowdale homes have low basement ceilings, underpinning adds the height needed to make the lower level genuinely usable as a family room, in-law suite, or rentable secondary unit.
Design & Permits
In-house architectural design, zoning analysis, Committee of Adjustment representation, demolition permits, and full City of Toronto permit coordination.
Project Management
A dedicated project manager, weekly site meetings, and full portal access from contract through handover.
Talk to us about your project.
Free, no obligation. You get a clear, fixed price.
Good To Know
What Willowdale Projects Actually Involve
Almost every custom build in Willowdale begins with tearing down the existing home. We handle demolition permits, environmental screening for pre-1980 homes, asbestos abatement where required, site hoarding, and waste management.
Willowdale’s mature canopy is protected under City of Toronto tree bylaws. Any tree with a 30 cm trunk diameter or larger requires an arborist assessment, and removal applications go through Urban Forestry. We work the arborist’s recommendations into the design from the start.
Most Willowdale lots fall under RD zoning with specific limits on lot coverage, height, and setbacks. Designs that maximize the lot almost always require minor variances through the Committee of Adjustment. We prepare and present the full application.
New builds often involve upgrading the water and sewer connections, relocating gas and hydro services, and managing temporary disconnections without disrupting the neighbourhood.
Willowdale streets are busy with construction, and active neighbour communication is the difference between a smooth build and stop-work complaints. We notify neighbours before demolition and run sites that don’t make us unwelcome.
Our Process
Our Process
We believe building a home should be an exciting journey, not a source of stress. As one of the top custom home builders in Toronto, since 2010 we’ve been perfecting a simple, 6-step process that keeps your project on track, on budget, and exactly the way you envisioned it.
Consultation
We walk the property, review zoning, assess the existing structure, and discuss what’s feasible, including whether your project is a candidate for renovation or for teardown and rebuild.
Design and Drawings
Architectural and interior design developed in-house, with the option to bring in your own architect if you’ve already engaged one.
Cost Estimation and Price
Every line specified, including demolition, site servicing, and any anticipated permit costs.
Permits and Approvals
We handle demolition permits, building permits, and any minor variance work required for your design.
Demolition and Build
Teardown plus construction typically runs 14 to 20 months. Renovations and additions are shorter. Dedicated project manager, weekly meetings and daily access throughout.
Final Completion and Handover
We walk through the finished home with you and deal with anything outstanding before it becomes yours.
Why Willowdale Clients Choose Grand Design Build
One Contract, One Team
Fixed-price contractsEvery contract is fixed-price, with every material, allowance, and line item specified before signing.
Custom build depthWillowdale is custom build country, and that’s what we do most. We’ve built across North York since 2010 and know the local inspectors, the Committee of Adjustment, and the site conditions.
HCRA licensed and fully insuredFully licensed under Ontario’s Home Construction Regulatory Authority, and insured on every project.
One contract, one teamArchitectural design, interior design, demolition, construction, and project management all coordinated under one roof.
Homeowner Reviews
What clients say about working with us.
“Grand Design Build exceeded every expectation we had. From the very first consultation, they were professional, transparent, and truly passionate about their work.”
Will, Custom Build“I had a really good experience working with Grand Design Build on my home renovation and rear addition project.”
Hasan G., Renovation & Addition“Organized, kept us informed through each step. Reliable with timelines and very clear about costs and materials.”
Lima Rodwesko, RenovationFrequently Asked Questions
Everything you'd ask before committing.
It depends on the existing structure, the lot, and what you want to end up with. Generally, original 1950s and 1960s ranches and bungalows in Willowdale don’t justify the cost of significant renovation; the foundation, framing, mechanical systems, and floor plan are all from a different era, and the work required to bring them to modern standards approaches what a new build costs. Homes from the 1980s and 1990s, particularly larger ones, more often justify renovation or addition. We assess each home individually during the consultation rather than defaulting to either path.
Willowdale lots vary in size, but most fall in the 50 to 65 foot frontage range with depths of 100 to 150 feet, which supports custom homes in the 3,500 to 7,000 square foot range. The actual size you can build depends on lot coverage limits (typically 35% to 45% depending on zoning), height limits, setback requirements, and floor space index where it applies. Most designs that maximize lot size require Committee of Adjustment approval for minor variances. We assess what’s feasible on your specific lot during the consultation.
From the first consultation to handover, most Willowdale custom builds take 18 to 26 months. That breaks down into roughly 4 to 6 months for design, drawings, and engineering, 3 to 5 months for permits and Committee of Adjustment work, and 12 to 18 months for demolition and construction. We map out the full schedule before contract signing.
Demolition requires a City of Toronto demolition permit, environmental screening for pre-1980 homes, asbestos and lead abatement where applicable, site hoarding, utility disconnections, and proper waste management. We coordinate all of it as part of the build contract, including arranging temporary services if needed and managing the disposal of any salvageable materials. Demolition itself typically takes two to three weeks once permits are in hand.
Often, yes. New custom builds in Willowdale frequently require upgraded electrical service, new gas connections, and sometimes water and sewer upgrades depending on the size of the home and what the existing services support.