521 Warden Ave, Toronto: 3-Storey Retail Building
3-Storey Retail Building at 521 Warden Ave, Toronto was permitted on March 9, 2026 with a stated construction value of under $1M. Proposed new 3-storey fourplex. Builtie tracks the project's stage, the trades still being bought and the people who decide.
The same four steps, whether the buyer is a builder, a designer, an owner or a company you want to acquire.
The project
| Address | 521 Warden Ave, Toronto |
| Neighbourhood | Oakridge |
| Project | 3-Storey Retail Building |
| Building type | Residential |
| Work | New building |
| Permit issued | March 9, 2026 |
| Housing units | 4 |
| Stated construction value | under $1M |
| Estimated stage | Framing |
| Company named on the permit | Reveal the builder — free trial |
| Decision makers and contacts | See who to contact — free trial |
From the permit: “Proposed new 3-storey fourplex”
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Where this project is
- Since March 202613 other permits at this address
- March 4, 2026New building · under $1M
- March 4, 2026New construction: demolition · under $1M
- March 4, 2026Demolition
- March 9, 2026Demolition
- March 9, 2026New construction: 3-Storey Retail Building · under $1M (this page)
- March 9, 2026New construction: demolition · under $1M
- April 2026Estimated construction start (estimate)
- October 2026Estimated completion (estimate)
How we estimate: from the permit date and its stated value, with the build lengths Builtie's project feed uses (about 7 months for a job this size). It is not the builder's schedule.
Other big projects nearby
- 313 Pharmacy AveAddition or alteration · $1M to $5M · June 2026
- 644 Warden AveAddition or alteration · $1M to $5M · May 2026
2 projects of $1M+ were permitted within 1 km in the last 12 months. See them all in Builtie →
Which trades are being bought now
When each trade on this project is usually picked, in calendar months (estimate). As of October 2026 every window below has passed (est.): the project may already be finished.
| Trade | When to approach (est.) | Status |
|---|---|---|
| Construction (est.) | Apr 2026 – Oct 2026 | Estimate |
| Construction Site Security | Mar 2026 – May 2026 | Window passed (est.) |
| Painting | Apr 2026 – Jun 2026 | Window passed (est.) |
| Masonry | Apr 2026 – May 2026 | Window passed (est.) |
| Waterproofing | Apr 2026 – May 2026 | Window passed (est.) |
| Roofing | Apr 2026 – Jun 2026 | Window passed (est.) |
| Windows, Doors and Glazing | Apr 2026 – May 2026 | Window passed (est.) |
| Electrical | May 2026 – Jun 2026 | Window passed (est.) |
| HVAC and Mechanical | May 2026 – Jun 2026 | Window passed (est.) |
| Plumbing | Apr 2026 – Jun 2026 | Window passed (est.) |
| Fire Protection | May 2026 – Jun 2026 | Window passed (est.) |
How we estimate: each bar is the share of the build, from the estimated start (April 2026) to the estimated completion (October 2026) above, when the builder usually picks that trade. It is not the builder's schedule.
What Builtie adds
In Builtie: the decision makers on this project and their verified contacts, the trades already credited on it, the builder's other active permits, and LinkedIn and email outreach that runs while you work.
Other major projects in Toronto
- 525 Warden Ave: 3-Storey Retail Building
- 58 Mystic Ave: Residential Project
- 2 Thora Ave: Self-Storage Building
- 777 Victoria Park Ave: Residential Project Renovation
- 256 Johnston Ave: Residential Project Renovation
All of them: construction projects in Toronto by address. Builtie's Toronto data is the amalgamated City of Toronto, including Etobicoke, North York, Scarborough, East York and York. Mississauga, Brampton, Vaughan, Oakville and Burlington issue their own permits; Builtie has read them separately since October 2026, so a Toronto count is not a GTA count. Toronto states a construction cost on about a third of 2026 permits.
Plans
Builtie's Starter plan is $79 per seat per month for 20 projects; Growth is $99 for 50 projects and adds the LinkedIn and email outreach you run yourself. Opening a project spends one credit, and the decision makers, emails, phones and AI call script inside it are included. Your monthly credits reset at each renewal, and extra credit packs are valid for 30 days. The free trial runs 7 days with 10 projects. Custom, where Builtie's team runs the outreach for you, starts from $1,500 a month on top of a Growth seat.
Frequently asked questions
What is being built at 521 Warden Ave?
3-Storey Retail Building. Proposed new 3-storey fourplex
When was the permit issued for 521 Warden Ave?
March 9, 2026, by the City of Toronto.
Who is building 521 Warden Ave?
Builtie resolves the builder or general contractor behind the permit and attaches a verified decision maker.
Which trades does 521 Warden Ave need now?
Estimated from the permit date, the award windows for site security; painting; masonry; waterproofing; roofing; window, door and glazing; electrical; HVAC; plumbing; fire protection had passed by October 2026; the project may already be finished. Builtie tracks the builder's next projects.
What does Builtie cost?
Starter is $79 per seat per month for 20 projects; Growth is $99 for 50 projects and adds LinkedIn and email outreach. There is a 7-day free trial with 10 projects.