New York City · Local Law compliance
NYC energy audits for Local Law 87 and Local Law 97.
We help New York City building owners meet LL87, LL97, LL84 and LL88 with audits that do double duty: a compliant filing and a practical plan to lower energy costs and carbon penalties.
NYC Climate Mobilization & Greener Greater Buildings laws
Four laws, one coordinated plan.
Most large NYC buildings fall under several of these laws at once. We handle them together, so data collected for one filing feeds the next.
Local Law 87Every 10 yearsEnergy audits & retro-commissioning
Covered buildings file an Energy Efficiency Report (EER) with the Department of Buildings, including an ASHRAE Level II audit and retro-commissioning of base building systems. The filing year follows the last digit of the tax block number.
Local Law 97AnnualBuilding carbon emission limits
Annual greenhouse gas limits by occupancy group, with stricter limits from 2030 and a path to net zero by 2050. Owners report emissions each year and pay penalties for any excess.
Local Law 84AnnualEnergy & water benchmarking
Energy and water data reported through ENERGY STAR Portfolio Manager. The results produce the letter grade that must be posted at the building entrance.
Local Law 88UpgradeLighting upgrades & sub-metering
Lighting in non-residential spaces upgraded to current Energy Code, and electric sub-meters for large non-residential tenant spaces with monthly energy statements.
LL97 exposure: a 100,000 sq ft office
Annual emissions against the two compliance periods.
Illustrative example. Penalties at $268 per metric ton CO₂e above the limit.
LL97 compliance planning
Know your penalty before it arrives.
We calculate your building's emissions against each compliance period, then build a phased plan that sequences measures to avoid penalties at the lowest total cost.
- Emissions & penalty forecastFor 2024–2029, 2030–2034 and beyond, using the city's emissions coefficients.
- Phased capital planMeasures timed with equipment replacement cycles and lease events.
- Electrification optionsHeat pump conversion studies and grid-impact considerations.
- IncentivesCon Edison Clean Heat, NYSERDA and NYC Accelerator resources.
Our LL87 process
From data request to DOB filing.
Start at least a year before your filing deadline. Retro-commissioning issues found in the audit usually need correcting before the report is filed.
- Eligibility checkConfirm coverage and your filing year from the tax block number.
- ASHRAE Level II auditFull site survey, utility analysis and costed ECMs.
- Retro-commissioningTesting of base building systems against the RCx checklist.
- CorrectionsDeficiencies fixed by your staff or contractors and re-verified.
- EER filingReport prepared and submitted to the Department of Buildings.
Service area
Energy audits in every borough.
New York City
- Manhattan
- Brooklyn
- Queens
- The Bronx
- Staten Island
New York State
- Westchester County
- Nassau County
- Suffolk County
- Rockland County
FAQ
Does my building need a Local Law 87 audit?
Local Law 87 applies to buildings over 50,000 gross square feet, and to groups of buildings on one tax lot or condo regime that total over 100,000 square feet. Covered buildings file an Energy Efficiency Report every ten years. The filing year is set by the last digit of the building's tax block number.
What is the difference between LL87 and LL97?
LL87 requires an energy audit and retro-commissioning every ten years. LL97 sets annual carbon emission limits for most buildings over 25,000 square feet, with penalties for emissions above the limit. An LL87 audit is a good starting point for an LL97 compliance plan.
What are the Local Law 97 penalties?
Buildings that exceed their annual emissions limit can be fined $268 for every metric ton of CO₂e over the limit, in addition to penalties for late or missing reports.
Do you cover all five boroughs?
Yes. We work in Manhattan, Brooklyn, Queens, the Bronx and Staten Island, as well as Westchester and Long Island.
Is your LL87 filing or LL97 deadline coming up?
Tell us your building's address and size. We will confirm which laws apply and when, and send a fixed-fee proposal.