631 Beach 9th Street

How does 631 Beach 9th 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. 631 Beach 9th Street's ENERGY STAR score of 69 compares with an average of 63 across the 22,829 that report a score; it scores higher than 50% of them and lower than 49%. Its site EUI of 78.6 kBtu/ft² is roughly in line with the average of 74.9 kBtu/ft². Its emissions intensity of 4.8 kgCO₂e/ft² is roughly in line with the group average of 5.2 kgCO₂e/ft².

At 73,905 sq ft, it is about 27% below the average floor area of 100,951 sq ft for those buildings. It was built in 1957, 5 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 631 Beach 9th Street's energy performance changed over time?

BuildingCensus holds 3 New York City disclosures for 631 Beach 9th Street, covering report years 2022–2024. Its ENERGY STAR score went from 95 in 2022 to 69 in 2024 (-26 points); its best year on file was 2023, at 100. Site EUI moved from 56.7 kBtu/ft² (2022) to 78.6 kBtu/ft² (2024), an 39% increase. Reported emissions went from 217 tCO₂e to 356 tCO₂e over the same span (up 64%).

What does an ENERGY STAR score of 69 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 69 means the building performs better than about 69% of its national peers. BuildingCensus bands the score into report-card grades; 69 falls in band C — below median (55–69). It sits 6 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. 631 Beach 9th Street's 78.6 kBtu/ft² across 73,905 sq ft works out to about 5.8 billion Btu (1,702 MWh-equivalent) in 2024. Its source EUI of 100.7 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 225,740 kWh of electricity, 50,370 therms of natural gas and 2,956 thousand gallons of water for the year.

Which law requires 631 Beach 9th Street to report its energy use?

631 Beach 9th 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:4406043:2024). 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.