55 Mill St, Toronto: School Renovation
School Renovation at 55 Mill St, Toronto was permitted on January 9, 2026 with a stated construction value of under $1M. Proposed interior alterations to areas of an existing building for new tenant at Level 2, including installation of new convenience stair from Level 1 up to Level 2. 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 | 55 Mill St, Toronto |
| Neighbourhood | St Lawrence-East Bayfront-The Islands |
| Project | School Renovation |
| Building type | Institutional |
| Work | Renovation or alteration |
| Permit issued | January 9, 2026 |
| Stated construction value | under $1M |
| Estimated stage | Framing |
| Company named on the permit | Cityzen Developments |
| Decision makers and contacts | See who to contact — free trial |
From the permit: “Proposed interior alterations to areas of an existing building for new tenant at Level 2, including installation of new convenience stair from Level 1 up to Level 2”
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Where this project is
- Since June 1998100 other permits at this address
- March 27, 2003Addition or alteration: interior alteration · $1M to $5M
- November 7, 2003Addition or alteration: demolition · under $1M
- December 8, 2005Addition or alteration: interior alteration · under $1M
- January 10, 2023Addition · under $1M
- July 11, 2025Addition or alteration: elevator · under $1M
- January 9, 2026Addition or alteration: School Renovation · under $1M (this page)
- February 2026Estimated construction start (estimate)
- August 2026Estimated 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, including 3 more renovations within 1 km
- 285 Queen St EConditional Permit · $100M to $250M · May 2026
- 285 Shuter StAddition or alteration: plumbing · $1M to $5M · January 2026
- 275 Shuter StAddition or alteration: structural work · $1M to $5M · April 2026
- 25 Henry Lane TerMechanical · $1M to $5M · August 2026
- 275 Queen St EAddition or alteration: interior alteration · $1M to $5M · April 2026
10 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.) | Feb 2026 – Aug 2026 | Estimate |
| Construction Site Security | Jan 2026 – Mar 2026 | Window passed (est.) |
| Painting | Feb 2026 – Apr 2026 | Window passed (est.) |
| Masonry | Feb 2026 – Mar 2026 | Window passed (est.) |
| Waterproofing | Feb 2026 – Mar 2026 | Window passed (est.) |
| Roofing | Feb 2026 – Apr 2026 | Window passed (est.) |
| Windows, Doors and Glazing | Feb 2026 – Mar 2026 | Window passed (est.) |
| Electrical | Mar 2026 – Apr 2026 | Window passed (est.) |
| HVAC and Mechanical | Mar 2026 – Apr 2026 | Window passed (est.) |
| Plumbing | Feb 2026 – Apr 2026 | Window passed (est.) |
| Fire Protection | Mar 2026 – Apr 2026 | Window passed (est.) |
How we estimate: each bar is the share of the build, from the estimated start (February 2026) to the estimated completion (August 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
- 38 The Esplanade: Office and Tenant Fit-Out
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- 56 The Esplanade: Office and Tenant Fit-Out
- 37 Front St E: Office and Tenant Fit-Out
- 15 York St: Office and Tenant Fit-Out
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 55 Mill St?
School Renovation. Proposed interior alterations to areas of an existing building for new tenant at Level 2, including installation of new convenience stair from Level 1 up to Level 2
When was the permit issued for 55 Mill St?
January 9, 2026, by the City of Toronto.
Who is building 55 Mill St?
Cityzen Developments is named on the permit. The decision makers and their contacts are in Builtie.
Which trades does 55 Mill St 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.