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DEADLINE GUIDE · TORONTO
Toronto's 2027 energy reporting rule: buildings of 10,000 to 49,999 sq ft
Thousands of smaller Toronto offices, plazas, low-rise apartments and condos report their energy and water use for the first time in 2027. The data they need is being created right now.
THE SHORT ANSWER
- Who: Toronto buildings of 10,000 to 49,999 sq ft (929 to 4,645 m²)
- When: first report due July 2, 2027, 234 days from today
- What: the building's energy and water use for calendar year 2026, filed through ENERGY STAR Portfolio Manager
Is my building affected?
| Gross floor area | City of Toronto | Ontario EWRB |
|---|---|---|
| Under 10,000 sq ft | Not required | Not required |
| 10,000 to 49,999 sq ft | First report by July 2, 2027, then every year | Not required |
| 50,000 sq ft and up | Every July 2 (already reporting) | Every July 1 |
Use gross floor area, not leasable area. The free reporting checker confirms it in three questions.
Buildings newly caught by the rule
Smaller offices and medical buildings
Two- to four-storey offices, clinics and professional buildings.
Retail plazas and strip malls
Including plazas where tenants pay their own utilities, which makes collecting the data harder.
Low-rise apartments and condos
Walk-ups, townhouse condominiums with common buildings, and smaller rental buildings.
Light industrial and places of worship
Small warehouses, workshops, churches and community buildings in this size range.
Why to start now, not next June
The 2027 report covers 2026. Every utility bill you'll need already exists or is arriving this month. Owners who wait until spring usually find missing months, tenant meters they can't get data for, and a floor area nobody can confirm, all with a deadline weeks away.
What to do this winter
- Confirm the gross floor area. It decides whether the rule applies at all.
- List every utility account: electricity, natural gas, water and any district energy, including tenant-paid meters.
- Request 2026 data from Toronto Hydro, Enbridge Gas and Toronto Water, or authorize someone to request it for you.
- Set up ENERGY STAR Portfolio Manager once, correctly: building profile, property uses and meters.
- File by July 2, 2027, then repeat each year with the new year's data.
Turn the report into savings
The same data shows how your building compares with others like it. That's what our free benchmark does in two minutes: your ranking, what closing the gap is worth in dollars, and the incentives that apply. If you'd rather not handle any of it, we collect the data, set up Portfolio Manager and file the report for you.
Also see: Ontario EWRB vs Toronto reporting · What reporting costs.
Sources: City of Toronto: Energy and water reporting for buildings · Ontario: Report energy and water use in large buildings · ENERGY STAR Portfolio Manager.
Quick answers
When is the first deadline for Toronto buildings of 10,000 to 49,999 sq ft?
July 2, 2027. The report covers energy and water use for the 2026 calendar year.
Which buildings are affected?
Buildings in the City of Toronto with a gross floor area of 10,000 to 49,999 sq ft (929 to 4,645 m²), such as smaller offices, retail plazas, low-rise apartment buildings and condominiums. Buildings of 50,000 sq ft and up already report every year.
Do smaller buildings also report to Ontario?
No. Ontario's EWRB rule starts at 50,000 sq ft. Buildings of 10,000 to 49,999 sq ft report to the City of Toronto only.
Is data verification required for smaller buildings?
No. Ontario's data verification applies to buildings of 100,000 sq ft and up.
What happens if a building does not report?
Not reporting is a breach of the City's bylaw (Municipal Code Chapter 367) and can lead to enforcement and fines. The City accepts late submissions, but it is simpler to file on time.