1083 Longfellow Avenue: 1083 Longfellow Avenue

How does 1083 Longfellow Avenue: 1083 Longfellow Avenue 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. 1083 Longfellow Avenue: 1083 Longfellow Avenue's ENERGY STAR score of 63 compares with an average of 63 across the 22,829 that report a score; it scores higher than 43% of them and lower than 56%. Its site EUI of 95.5 kBtu/ft² is about 28% 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 5.9 kgCO₂e/ft² is about 14% above the group average of 5.2 kgCO₂e/ft².

At 40,998 sq ft, it is about 59% below the average floor area of 100,951 sq ft for those buildings. It was built in 1924, 28 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 1083 Longfellow Avenue: 1083 Longfellow Avenue's energy performance changed over time?

BuildingCensus holds 3 New York City disclosures for 1083 Longfellow Avenue: 1083 Longfellow Avenue, covering report years 2022–2024. Its ENERGY STAR score went from 54 in 2022 to 63 in 2024 (+9 points); its best year on file was 2023, at 81. Site EUI moved from 85.0 kBtu/ft² (2022) to 95.5 kBtu/ft² (2024), an 12% increase. Reported emissions went from 205 tCO₂e to 242 tCO₂e over the same span (up 18%).

What does an ENERGY STAR score of 63 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 63 means the building performs better than about 63% of its national peers. BuildingCensus bands the score into report-card grades; 63 falls in band C — below median (55–69). It sits 12 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. 1083 Longfellow Avenue: 1083 Longfellow Avenue's 95.5 kBtu/ft² across 40,998 sq ft works out to about 3.9 billion Btu (1,147 MWh-equivalent) in 2024. Its source EUI of 124.0 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 162,588 kWh of electricity, 33,604 therms of natural gas and 5,062 thousand gallons of water for the year.

Which law requires 1083 Longfellow Avenue: 1083 Longfellow Avenue to report its energy use?

1083 Longfellow Avenue: 1083 Longfellow Avenue 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:20023422:2024). 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.