812 West 181st Street

How does 812 West 181st Street compare with other multifamily housing buildings in New York City?

The latest disclosures cover 33,022 multifamily housing buildings in New York City, out of 48,310 buildings citywide. 812 West 181st Street's ENERGY STAR score of 55 compares with an average of 63 across the 22,829 that report a score; it scores higher than 36% of them and lower than 63%. Its site EUI of 105.9 kBtu/ft² is about 41% above the average of 74.9 kBtu/ft² — it uses more energy per square foot than the typical building in that group. Its emissions intensity of 8.4 kgCO₂e/ft² is about 61% above the group average of 5.2 kgCO₂e/ft².

At 58,642 sq ft, it is about 42% below the average floor area of 100,951 sq ft for those buildings. It was built in 1920, 32 years earlier than the group's average year built (1952). Across all 24 jurisdictions BuildingCensus covers, the 59,945 multifamily housing buildings average an ENERGY STAR score of 70 and a site EUI of 59.0 kBtu/ft².

How has 812 West 181st Street's energy performance changed over time?

BuildingCensus holds 3 New York City disclosures for 812 West 181st Street, covering report years 2022–2024. Its ENERGY STAR score went from 40 in 2022 to 55 in 2024 (+15 points); its best year on file was 2023, at 99. Site EUI moved from 121.5 kBtu/ft² (2022) to 105.9 kBtu/ft² (2024), a 13% decrease. Reported emissions went from 522 tCO₂e to 491 tCO₂e over the same span (down 6%).

What does an ENERGY STAR score of 55 mean?

ENERGY STAR scores run from 1 to 100 and are computed by the EPA's Portfolio Manager as a percentile against similar buildings nationwide, adjusted for climate, size and use: a score of 55 means the building performs better than about 55% of its national peers. BuildingCensus bands the score into report-card grades; 55 falls in band C — below median (55–69). It sits 20 points below 75, the threshold for ENERGY STAR certification. In New York City, 43% of scored buildings are at 75 or above.

Site energy-use intensity (EUI) is the energy a building uses on site in a year divided by its floor area, in thousand Btu per square foot — lower is more efficient. 812 West 181st Street's 105.9 kBtu/ft² across 58,642 sq ft works out to about 6.2 billion Btu (1,820 MWh-equivalent) in 2024. Its source EUI of 146.5 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 371,441 kWh of electricity and 12,190 therms of natural gas for the year.

Which law requires 812 West 181st Street to report its energy use?

812 West 181st Street reports under Local Law 84 (LL84), the legal basis of New York City's Energy and Water Data Disclosure program, which publishes each covered building's annual benchmarking results. The record shown here is the report-year 2024 disclosure (source record nyc:2705504:2024). Under Local Law 97, buildings over 25,000 sq ft face carbon caps with fines of $268 per metric ton of CO₂e over the limit, phasing in from 2024.