Seward Park Housing (3&4)

How does Seward Park Housing (3&4) 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. Seward Park Housing (3&4)'s ENERGY STAR score of 43 compares with an average of 63 across the 22,829 that report a score; it scores higher than 26% of them and lower than 73%. Its site EUI of 91.9 kBtu/ft² is about 23% 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 5.4 kgCO₂e/ft² is roughly in line with the group average of 5.2 kgCO₂e/ft².

At 1,025,341 sq ft, it is about 916% above the average floor area of 100,951 sq ft for those buildings. It was built in 1960, 8 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.

What does an ENERGY STAR score of 43 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 43 means the building performs better than about 43% of its national peers. BuildingCensus bands the score into report-card grades; 43 falls in band D — lowest band (1–54). It sits 32 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. Seward Park Housing (3&4)'s 91.9 kBtu/ft² across 1,025,341 sq ft works out to about 94.2 billion Btu (27,616 MWh-equivalent) in 2022. Its source EUI of 127.6 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 5,346,336 kWh of electricity and 4,023 thousand gallons of water for the year.

Which law requires Seward Park Housing (3&4) to report its energy use?

Seward Park Housing (3&4) 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 2022 disclosure (source record nyc:26635736:2022). 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.