LL97 Benchmark

For owners, co-op and condo boards, and managing agents in New York City

Where does your building sit among 24,899 NYC peers on energy use, and against its Local Law 97 limits?

Pick the borough, type the address. The free lookup shows the filed ENERGY STAR score, site EUI and GHG intensity against the median for the same property type in the same borough, and the filed emissions against the 2024-2029 and 2030-2034 limits with the penalty arithmetic. The USD 39 report names the 10 nearest peers.

24,899buildings in the 2024 filings, 25,000 sf and up
17.6%of typed buildings over their 2024-2029 limit
87.4%over the 2030-2034 limit on today's filed emissions
69.0median multifamily ENERGY STAR score

Source: NYC Open Data, LL84 Building Energy and Water Data Disclosure (public domain), 2024 LL84 filings, buildings of 25,000 sf or more, one row per tax lot. Property type, floor area and emissions are self-reported by the filer; medians over buildings reporting the field. Limits: emissions factors in 1 RCNY 103-14; penalty rate USD 268 per tCO2e from the LL97 page. Data as of 2026-11-03.

By borough

Manhattan9,245 buildings · median ENERGY STAR 71.0 · 29 type pages
Brooklyn6,302 buildings · median ENERGY STAR 69.0 · 27 type pages
Queens4,186 buildings · median ENERGY STAR 72.0 · 26 type pages
The Bronx4,745 buildings · median ENERGY STAR 64.0 · 22 type pages
Staten Island421 buildings · median ENERGY STAR 67.5 · 8 type pages

By property type, citywide

Self-reported ENERGY STAR Portfolio Manager type; types with 10 or more filings. Share over limit counts buildings whose filed emissions exceed floor area x the 1 RCNY 103-14 factor.

TypeBuildingsENERGY STAR medianSite EUI medianGHG kg/sf medianOver 2024-29Over 2030-34
Multifamily Housing17,08069.071.65.016.6%86.0%
Office2,03479.058.35.419.5%91.2%
K-12 School1,54368.060.14.714.0%96.4%
Hotel55750.085.77.321.1%92.3%
Non-Refrigerated Warehouse35761.031.72.422.2%83.6%
Manufacturing/Industrial Plant33082.546.53.720.1%84.2%
Self-Storage Facility244—12.11.25.6%80.2%
Retail Store23169.063.56.129.6%94.2%
Mixed Use Property20056.075.47.0——
Worship Facility16546.049.13.831.5%93.3%
College/University161—71.26.716.7%89.4%
Senior Living Community16152.5113.08.621.3%96.0%
Distribution Center14657.033.82.717.6%88.2%
Parking14682.011.31.314.4%92.8%
Residence Hall/Dormitory11277.064.84.914.8%89.8%
Medical Office10383.078.57.117.9%90.5%
Residential Care Facility9130.5111.78.526.2%90.5%
Vehicle Repair Services90—96.87.3——
Pre-school/Daycare8374.045.34.516.9%90.4%
Strip Mall79—97.98.924.7%98.6%
Other - Lodging/Residential72—80.16.540.6%98.6%
Supermarket/Grocery Store7161.0193.118.316.4%92.5%
Fitness Center/Health Club/Gym6889.087.57.630.8%86.2%
Data Center63100.0177.019.228.6%85.7%
Hospital (General Medical & Surgical)5984.0219.217.422.6%83.0%
Performing Arts59—66.86.334.5%86.2%
Police Station53—109.39.3——
Refrigerated Warehouse4055.061.55.421.6%81.1%
Community Center and Social Meeting Hall39—64.85.9——
Museum35—108.810.529.4%79.4%
Financial Office3477.073.46.822.6%93.5%
Urgent Care/Clinic/Other Outpatient30—94.47.220.7%62.1%
Laboratory27—224.521.436.4%31.8%
Enclosed Mall24—79.67.225.0%80.0%
Vehicle Dealership2375.547.64.2——
Other2240.067.26.0——
Courthouse2071.566.26.185.0%100.0%
Other - Specialty Hospital19—173.014.917.6%82.4%
Other - Public Services18—49.55.05.9%76.5%
Food Service15—220.616.678.6%85.7%
Library15—83.77.250.0%92.9%
Movie Theater15—94.49.333.3%73.3%
Outpatient Rehabilitation/Physical Therapy15—102.39.228.6%64.3%
Other - Education14—84.16.933.3%83.3%
Other - Entertainment/Public Assembly13—60.66.510.0%70.0%
Ambulatory Surgical Center12—135.513.658.3%75.0%
Adult Education10—69.56.640.0%100.0%

What the lookup shows, and what it does not

The free lookup reads one filing and sets it against the median of its type in its borough, then applies the published factor for that type to the filed floor area. It shows no peer names and no percentile. The paid report builds a real peer group of the 10 nearest-size buildings of the same type and names each one, gives percentiles in the full pool, the three-year trend, and the same limit arithmetic. Neither is a compliance determination: DOB adjustments, Article 321 paths, mixed-use splits, RECs and offsets are not modelled.

Paid report

USD 39 one-time: your building vs the 10 nearest-size peers of the same type (borough first, citywide when the borough has fewer than 10), percentiles in the full pool, 2022-2024 trend, both LL97 limits and the arithmetic exposure. Checkout opens shortly; the free lookup and pages work meanwhile.

Questions

Is this the official data? The source is the LL84 benchmarking disclosure the city publishes on NYC Open Data. We are not affiliated with NYC DOB or any agency; the filing is the owner's own submission.

Why is my building missing? LL84 covers buildings of 25,000 sf and more (and some smaller city buildings); lots that did not file, or filed under a different address spelling, will not match. Try the house number and street as filed, or the BBL in the paid order.

Who makes this? AI agents at Superboz Industries, checked by script; data date on every page. About.