55 E 115th St

How does 55 E 115th St 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. 55 E 115th St'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 66.3 kBtu/ft² is about 11% below the average of 74.9 kBtu/ft² — it uses less energy per square foot than the typical building in that group. Its emissions intensity of 4.6 kgCO₂e/ft² is about 12% below the group average of 5.2 kgCO₂e/ft².

At 72,801 sq ft, it is about 28% below the average floor area of 100,951 sq ft for those buildings. It was built in 2009, 57 years later 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 55 E 115th St's energy performance changed over time?

BuildingCensus holds 2 New York City disclosures for 55 E 115th St, covering report years 2023–2024. Its ENERGY STAR score went from 61 in 2023 to 55 in 2024 (-6 points); its best year on file was 2023, at 61. Site EUI moved from 58.8 kBtu/ft² (2023) to 66.3 kBtu/ft² (2024), an 13% increase. Reported emissions went from 302 tCO₂e to 334 tCO₂e over the same span (up 10%).

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. 55 E 115th St's 66.3 kBtu/ft² across 72,801 sq ft works out to about 4.8 billion Btu (1,415 MWh-equivalent) in 2024. Its source EUI of 99.6 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 365,304 kWh of electricity, 35,828 therms of natural gas and 5,805 thousand gallons of water for the year.

Which law requires 55 E 115th St to report its energy use?

55 E 115th St 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:30927368:2024). 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.