4520 Broadway

How does 4520 Broadway 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. 4520 Broadway's ENERGY STAR score of 39 compares with an average of 63 across the 22,829 that report a score; it scores higher than 23% of them and lower than 76%. Its site EUI of 96.6 kBtu/ft² is about 29% 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 6.9 kgCO₂e/ft² is about 33% above the group average of 5.2 kgCO₂e/ft².

At 52,215 sq ft, it is about half of the average floor area of 100,951 sq ft for those buildings. It was built in 1925, 27 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 4520 Broadway's energy performance changed over time?

BuildingCensus holds 3 New York City disclosures for 4520 Broadway, covering report years 2022–2024. Its ENERGY STAR score went from 50 in 2022 to 39 in 2024 (-11 points); its best year on file was 2023, at 67. Site EUI moved from 96.7 kBtu/ft² (2022) to 96.6 kBtu/ft² (2024), a 0% decrease. Reported emissions went from 313 tCO₂e to 362 tCO₂e over the same span (up 16%).

What does an ENERGY STAR score of 39 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 39 means the building performs better than about 39% of its national peers. BuildingCensus bands the score into report-card grades; 39 falls in band D — lowest band (1–54). It sits 36 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. 4520 Broadway's 96.6 kBtu/ft² across 52,215 sq ft works out to about 5 billion Btu (1,478 MWh-equivalent) in 2024. Its source EUI of 152.2 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 443,890 kWh of electricity, 35,300 therms of natural gas and 4,605 thousand gallons of water for the year.

Which law requires 4520 Broadway to report its energy use?

4520 Broadway 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:3524985:2024). 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.