Office buildings in The Bronx: energy benchmarks and Local Law 97 exposure
83 Office buildings in The Bronx of 25,000 sf or more filed for 2024. Median ENERGY STAR score 71.0, site EUI 60.3 kBtu/sf, GHG intensity 5.5 kgCO2e/sf (quartiles 4.0-7.5), median size 53,250 sf, median year built 1,939. On filed emissions, 23.5% of the 81 with an emissions figure are over their 2024-2029 limit and 90.1% over the 2030-2034 limit.
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.
Medians here (bar) vs Office citywide (2,034) (mark):
Local Law 97 limits for this type
| Period | Factor (tCO2e/sf) | Buildings over the limit | Share | Median arithmetic exposure, those over | Sum |
|---|---|---|---|---|---|
| 2024-2029 | 0.00758 | 19 of 81 | 23.5% | $41,074/yr | $1,135,765/yr |
| 2030-2034 | 0.00269085 | 73 of 81 | 90.1% | $40,797/yr | $7,242,925/yr |
"Over the limit" = filed total location-based emissions above GFA x factor for the self-reported type; exposure = excess tCO2e x USD 268. Arithmetic on 2024 filings, not a prediction of what any owner pays: adjustments, Article 321, mixed-use splits, RECs and offsets are not modelled.
Where your building sits
Use the free lookup with the address for your own figures against these medians and limits, or get the USD 39 report for the 10 nearest-size named peers in The Bronx.
Paid report
USD 39 one-time: a Office building in The Bronx 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.
Office in other boroughs
Manhattan (1,463) · Brooklyn (249) · Queens (211) · Staten Island (28) · citywide
Other types in The Bronx
Multifamily Housing (3,738) · K-12 School (306) · Non-Refrigerated Warehouse (65) · Self-Storage Facility (54) · Manufacturing/Industrial Plant (47) · Senior Living Community (40) · Parking (38) · Retail Store (35) · Other - Lodging/Residential (25) · Residential Care Facility (25) · Medical Office (21) · Hotel (20)