300 St Clair Ave W, Toronto: Apartment Building Renovation
Apartment Building Renovation at 300 St Clair Ave W, Toronto was permitted on April 23, 2025 with a stated construction value of under $1M. Propoosal to perform alterations to restore balcony. 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 | 300 St Clair Ave W, Toronto |
| Neighbourhood | Casa Loma |
| Project | Apartment Building Renovation |
| Building type | Residential |
| Work | Renovation or alteration |
| Permit issued | April 23, 2025 |
| Stated construction value | under $1M |
| Estimated stage | Likely complete |
| Company named on the permit | MacDonald Myszko Construction Inc |
| Decision makers and contacts | See who to contact — free trial |
From the permit: “Propoosal to perform alterations to restore balcony”
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Where this project is
- April 23, 2025Addition or alteration: Apartment Building Renovation · under $1M (this page)
- May 2025Estimated construction start (estimate)
- November 2025Estimated completion (estimate; it may already be finished)
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
- 155 Balmoral AveNew building · $50M to $100M · June 2026
- 324 R Spadina RdAddition or alteration · $5M to $10M · May 2026
- 150 Heath St WAddition or alteration · $1M to $5M · April 2026
11 projects of $1M+ were permitted within 1 km in the last 12 months. See them all in Builtie →
Which trades are being bought now
Builtie stages each project as it moves; the trades open on it change week to week.
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
- 296 Avenue Rd: Office and Tenant Fit-Out
- 574 Davenport Rd: 3-Storey Apartment Building Renovation
- 284 Avenue Rd: 3-Storey Mixed-Use Building Renovation
- 1 Austin Ter: Parking Structure Renovation
- 454 Avenue Rd: School 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 300 St Clair Ave W?
Apartment Building Renovation. Propoosal to perform alterations to restore balcony
When was the permit issued for 300 St Clair Ave W?
April 23, 2025, by the City of Toronto.
Who is building 300 St Clair Ave W?
MacDonald Myszko Construction Inc is named on the permit. The decision makers and their contacts are in Builtie.
Which trades does 300 St Clair Ave W need now?
It depends on the stage; Builtie tracks it.
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.