Cambridge, MA · Reviewed November 2026

Cambridge BEUDO compliance, filed for you

The Cambridge Building Energy Use Disclosure Ordinance (BEUDO) requires covered buildings to report energy and water use every year. We gather the data, check it, and file it — usually within a week.

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Who’s covered

Non-residential buildings of 25,000 sq ft or more, residential buildings with 50 or more units, and city buildings over 10,000 sq ft.

Annual deadline

May 1 for the previous calendar year.

Verification

Third-party data verification for larger buildings on the city’s schedule.

Penalties

A warning for a first violation, then up to $300 per day.

What to report

All energy and water used by the whole building — including tenant spaces — for January 1 to December 31:

Electricity — every meter serving the building
Natural gas
District steam, hot or chilled water, if you have it
Delivered fuels (oil, diesel, propane) — all delivery receipts for the year
On-site solar production, if any
Water — whole-building water use

Leave out backup generator fuel. Note any meters added or removed during the year.

Good to know

BEUDO now includes emissions reduction requirements that tighten toward net zero.
Massachusetts’s statewide program may also apply.

What we’ll need from you

Building address, plus any utility service addresses that differ from it
Gross floor area for the whole building and each use (office, retail, residential…), number of units and year built
Your Cambridge BEUDO ID (we can look it up)
Utility data for the full calendar year, January 1 – December 31 (usually 13 months of bills)
If tenants pay their own utilities: whole-building (aggregated) data from the utility, or signed tenant authorization forms
Access to your ENERGY STAR Portfolio Manager account, if you have one
Any notice or letter you received about this law

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FAQ

Cambridge BEUDO questions

When is the Cambridge BEUDO deadline?

Reports are normally due May 1 each year, covering the previous calendar year’s energy and water use.

Does Cambridge BEUDO apply to my building?

Non-residential buildings of 25,000 sq ft or more, residential buildings with 50 or more units, and city buildings over 10,000 sq ft. Exemptions are limited — if you’re not sure, send us the address and we’ll check.

What happens if I miss it?

A warning for a first violation, then up to $300 per day. If you’ve already missed the deadline, we can usually get you filed quickly and help you respond to any notice.

Is third-party verification required?

Third-party data verification for larger buildings on the city’s schedule. We provide verification in-house.

Official program information: Cambridge BEUDO website. Requirements change — we confirm current rules for every filing.

Let us handle your Cambridge BEUDO filing

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