How much does a commercial interior fit-out cost in Toronto?
Interior alteration permits across Toronto — offices, retail, restaurants and clinics — with declared value and, where the permit states floor area, real declared dollars per square foot.
The full spread, not an average
| Percentile | Declared value |
|---|---|
| P25 — smaller jobs | $30K |
| Median | $90K |
| P75 — larger jobs | $300K |
| Largest in sample | $275.7M |
6,585 permits with a declared value, trailing 36 months. Medians and quartiles only — one outlier can't move them.
Why two of these quote differently
- Base-building condition: a second-generation space with usable HVAC and washrooms costs a fraction of a raw shell.
- Mechanical and electrical are usually the largest packages, not the finishes.
- Use: a restaurant's kitchen exhaust, grease interceptor and make-up air put it in a different band from an office.
- Timing — after-hours work in an occupied building carries a premium.
Check it against the record
| Applied | Address | Declared value |
|---|---|---|
| Oct 2026 | 130 KING ST W
Tenant fit up work for renovation on existing food-court restaurant |
$200,000 |
| Oct 2026 | 1299 DUNDAS ST E
Proposed interior alterations to a single-family dwelling, including removal of a... |
$5,000 |
| Oct 2026 | 3126 KINGSTON RD
Proposal for interior alterations to create 2 additional suites in the basement,... |
$60,000 |
| Oct 2026 | 5999-6023 YONGE ST
Interior alterations to 6005 Yonge Street, Unit A |
$25,000 |
Where these numbers come from
Declared construction values on City of Toronto building permits (tier C), trailing
36 months, minimum 12 permits before a guide is published. A declared value is
what the applicant stated the work is worth — it can sit below final hard cost,
which is exactly why GROUND also publishes
awarded contract prices.
This is the single largest category in GROUND's corpus and the one with the most credible $/SF sample.
Data: Open Government Licence — Toronto. Recomputed automatically as new
permits land; the figures above are current as of October 16, 2026.
Pricing a project like this?
The numbers above are the market. For your project specifically — your address, your scope — we'll read the comparables, flag the permits you'll need, and check any quote you've been given against real awarded prices.
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