335 Carroll

How does 335 Carroll 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. 335 Carroll's ENERGY STAR score of 4 compares with an average of 63 across the 22,829 that report a score; it scores higher than 4% of them and lower than 96%. Its site EUI of 71.3 kBtu/ft² is roughly in line with the average of 74.9 kBtu/ft² — it uses less energy per square foot than the typical building in that group. Its emissions intensity of 6.8 kgCO₂e/ft² is about 32% above the group average of 5.2 kgCO₂e/ft².

At 30,000 sq ft, it is about 70% below the average floor area of 100,951 sq ft for those buildings. It was built in 1931, 21 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 335 Carroll's energy performance changed over time?

BuildingCensus holds 3 New York City disclosures for 335 Carroll, covering report years 2022–2024. Its ENERGY STAR score went from 99 in 2022 to 4 in 2024 (-95 points); its best year on file was 2022, at 99. Site EUI moved from 41.5 kBtu/ft² (2022) to 71.3 kBtu/ft² (2024), an 72% increase. Reported emissions went from 75 tCO₂e to 205 tCO₂e over the same span (up 173%).

What does an ENERGY STAR score of 4 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 4 means the building performs better than about 4% of its national peers. BuildingCensus bands the score into report-card grades; 4 falls in band D — lowest band (1–54). It sits 71 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. 335 Carroll's 71.3 kBtu/ft² across 30,000 sq ft works out to about 2.1 billion Btu (627 MWh-equivalent) in 2024. Its source EUI of 161.3 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 434,260 kWh of electricity, 6,577 therms of natural gas and 1,709 thousand gallons of water for the year.

Which law requires 335 Carroll to report its energy use?

335 Carroll 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:10548468:2024). 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.