644 Gates Avenue

How does 644 Gates Avenue compare with other K-12 school buildings in New York City?

The latest disclosures cover 2,301 K-12 school buildings in New York City, out of 48,310 buildings citywide. 644 Gates Avenue's ENERGY STAR score of 98 compares with an average of 64 across the 2,052 that report a score; it scores higher than 95% of them and lower than 4%. Its site EUI of 35.3 kBtu/ft² is about 42% below the average of 61.3 kBtu/ft² — it uses less energy per square foot than the typical building in that group. Its emissions intensity of 3.3 kgCO₂e/ft² is about 32% below the group average of 4.8 kgCO₂e/ft².

At 44,700 sq ft, it is about 56% below the average floor area of 101,338 sq ft for those buildings. It was built in 2000, 47 years later than the group's average year built (1954). Across all 24 jurisdictions BuildingCensus covers, the 6,548 K-12 school buildings average an ENERGY STAR score of 64 and a site EUI of 52.7 kBtu/ft².

How has 644 Gates Avenue's energy performance changed over time?

BuildingCensus holds 3 New York City disclosures for 644 Gates Avenue, covering report years 2022–2024. Its ENERGY STAR score went from 100 in 2022 to 98 in 2024 (-2 points); its best year on file was 2022, at 100. Site EUI moved from 19.0 kBtu/ft² (2022) to 35.3 kBtu/ft² (2024), an 86% increase. Reported emissions went from 52 tCO₂e to 147 tCO₂e over the same span (up 183%).

What does an ENERGY STAR score of 98 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 98 means the building performs better than about 98% of its national peers. BuildingCensus bands the score into report-card grades; 98 falls in band A — high performer (85–100). Scores of 75 or higher meet the threshold for ENERGY STAR certification; certification itself is a separate, verified application that the disclosure does not record. 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. 644 Gates Avenue's 35.3 kBtu/ft² across 44,700 sq ft works out to about 1.6 billion Btu (462 MWh-equivalent) in 2024. Its source EUI of 76.8 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 297,839 kWh of electricity, 5,603 therms of natural gas and 253 thousand gallons of water for the year.

Which law requires 644 Gates Avenue to report its energy use?

644 Gates 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:10515208:2024). 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.