304 Park Avenue South

How does 304 Park Avenue South compare with other office buildings in New York City?

The latest disclosures cover 3,384 office buildings in New York City, out of 48,310 buildings citywide. 304 Park Avenue South's ENERGY STAR score of 54 compares with an average of 72 across the 2,519 that report a score; it scores higher than 19% of them and lower than 81%. Its site EUI of 90.8 kBtu/ft² is about 41% above the average of 64.5 kBtu/ft² — it uses more energy per square foot than the typical building in that group. Its emissions intensity of 8.9 kgCO₂e/ft² is about 54% above the group average of 5.8 kgCO₂e/ft².

At 195,305 sq ft, it is roughly in line with the average floor area of 205,440 sq ft for those buildings. It was built in 1924, 16 years earlier than the group's average year built (1940). Across all 24 jurisdictions BuildingCensus covers, the 15,264 office buildings average an ENERGY STAR score of 73 and a site EUI of 59.3 kBtu/ft².

How has 304 Park Avenue South's energy performance changed over time?

BuildingCensus holds 3 New York City disclosures for 304 Park Avenue South, covering report years 2022–2024. Its ENERGY STAR score went from 78 in 2022 to 54 in 2024 (-24 points); its best year on file was 2022, at 78. Site EUI moved from 83.2 kBtu/ft² (2022) to 90.8 kBtu/ft² (2024), an 9% increase. Reported emissions went from 1,399 tCO₂e to 1,749 tCO₂e over the same span (up 25%).

What does an ENERGY STAR score of 54 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 54 means the building performs better than about 54% of its national peers. BuildingCensus bands the score into report-card grades; 54 falls in band D — lowest band (1–54). It sits 21 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. 304 Park Avenue South's 90.8 kBtu/ft² across 195,305 sq ft works out to about 17.7 billion Btu (5,197 MWh-equivalent) in 2024. Its source EUI of 196.9 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 3,353,369 kWh of electricity and 16,829 therms of natural gas for the year.

Which law requires 304 Park Avenue South to report its energy use?

304 Park Avenue South 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:3530087:2024). 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.