AF - 55 Mt Hope Place

How does AF - 55 Mt Hope Place 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. AF - 55 Mt Hope Place's ENERGY STAR score of 36 compares with an average of 63 across the 22,829 that report a score; it scores higher than 21% of them and lower than 78%. Its site EUI of 113.8 kBtu/ft² is about 52% 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 9.3 kgCO₂e/ft² is about 78% above the group average of 5.2 kgCO₂e/ft².

At 30,805 sq ft, it is about 69% below the average floor area of 100,951 sq ft for those buildings. It was built in 1921, 31 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 AF - 55 Mt Hope Place's energy performance changed over time?

BuildingCensus holds 2 New York City disclosures for AF - 55 Mt Hope Place, covering report years 2023–2024. Its ENERGY STAR score went from 35 in 2023 to 36 in 2024 (+1 points). Site EUI moved from 113.6 kBtu/ft² (2023) to 113.8 kBtu/ft² (2024), an 0% increase. Reported emissions went from 279 tCO₂e to 285 tCO₂e over the same span (up 2%).

What does an ENERGY STAR score of 36 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 36 means the building performs better than about 36% of its national peers. BuildingCensus bands the score into report-card grades; 36 falls in band D — lowest band (1–54). It sits 39 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. AF - 55 Mt Hope Place's 113.8 kBtu/ft² across 30,805 sq ft works out to about 3.5 billion Btu (1,027 MWh-equivalent) in 2024. Its source EUI of 155.6 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 204,176 kWh of electricity, 1,607 therms of natural gas and 41 thousand gallons of water for the year.

Which law requires AF - 55 Mt Hope Place to report its energy use?

AF - 55 Mt Hope Place 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:35399907:2024). 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.