What will Local Law 97 cost your building?
Most NYC buildings are over their 2030 emissions cap and don’t know it. Find your number in 60 seconds — free.
Roughly 63% of NYC buildings exceed their 2030 caps. A typical 50-unit building goes from about $6,000 a year in fines today to about $42,000 a year in 2030.
Find your number
This free Local Law 97 penalty calculator estimates your LL97 fine for both the 2024–2029 and 2030 compliance periods. Enter what you know — or switch on a typical building like yours and refine later.
From a photo of a bill to your cheapest path under the cap.
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Forward us a utility bill — a photo is fine.
No account setup, no engineering audit to get your number.
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We track your emissions against your cap, continuously.
Not once a year in a report that's stale by the next bill.
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You get your penalty exposure, your filings, and the cheapest path under the cap.
The dollar figure, the deadlines, and what to do about them.
We’re onboarding a limited group of early buildings now.
A 50,000 sq ft multifamily building, before and after 2030.
per year in emissions fines
per year — a 7× jump as the cap tightens
per month — $0.50/sq ft, separate from the fine
The non-filing penalty is often worse than the emissions fine itself — and it’s entirely avoidable.
How this Local Law 97 penalty calculator works
Local Law 97 sets an annual carbon cap for most NYC buildings over 25,000 square feet, and fines every metric ton of CO₂e over that cap at $268. This LL97 penalty calculator turns your building’s energy use into an estimated fine for two compliance periods: 2024–2029, and the much tighter 2030–2034 limits.
We convert your electricity, natural gas, fuel oil, and district steam into emissions using the coefficients published for LL97 — for example, 0.000288962 tCO₂e per kWh of electricity — then compare your total against the cap for your building type. Multifamily, office, retail, and hotel each get their own occupancy-group cap; “other” uses office limits and is labeled approximate.
The result is an estimate to show you the order of magnitude and which side of the cap you’re on — not a certified compliance filing. Your actual obligation depends on your building’s specific characteristics, adjustments, and credits.
The five we get asked most.
Most NYC buildings over 25,000 gross square feet — and clusters of smaller buildings on the same lot that add up past it. If that’s you, you have both an emissions cap and an annual filing obligation.
Still have a question? founders@uniplexa.com