The Leighton House Condominium (360 East 88th Street)

How does The Leighton House Condominium (360 East 88th 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. The Leighton House Condominium (360 East 88th Street)'s ENERGY STAR score of 53 compares with an average of 63 across the 22,829 that report a score; it scores higher than 34% of them and lower than 65%. Its site EUI of 75.2 kBtu/ft² is roughly in line with the average of 74.9 kBtu/ft². Its emissions intensity of 5.3 kgCO₂e/ft² is roughly in line with the group average of 5.2 kgCO₂e/ft².

At 284,630 sq ft, it is about 182% above the average floor area of 100,951 sq ft for those buildings. It was built in 1989, 37 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 The Leighton House Condominium (360 East 88th Street)'s energy performance changed over time?

BuildingCensus holds 2 New York City disclosures for The Leighton House Condominium (360 East 88th Street), covering report years 2023–2024. Its ENERGY STAR score went from 56 in 2023 to 53 in 2024 (-3 points); its best year on file was 2023, at 56. Site EUI moved from 72.9 kBtu/ft² (2023) to 75.2 kBtu/ft² (2024), an 3% increase. Reported emissions went from 1,395 tCO₂e to 1,517 tCO₂e over the same span (up 9%).

What does an ENERGY STAR score of 53 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 53 means the building performs better than about 53% of its national peers. BuildingCensus bands the score into report-card grades; 53 falls in band D — lowest band (1–54). It sits 22 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. The Leighton House Condominium (360 East 88th Street)'s 75.2 kBtu/ft² across 284,630 sq ft works out to about 21.4 billion Btu (6,273 MWh-equivalent) in 2024. Its source EUI of 116.7 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 1,796,774 kWh of electricity, 152,840 therms of natural gas and 10,043 thousand gallons of water for the year.

Which law requires The Leighton House Condominium (360 East 88th Street) to report its energy use?

The Leighton House Condominium (360 East 88th 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:2961623:2024). 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.