641 Avenue of the Americas

How does 641 Avenue of the Americas 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. 641 Avenue of the Americas's ENERGY STAR score of 78 compares with an average of 72 across the 2,519 that report a score; it scores higher than 48% of them and lower than 50%. Its site EUI of 55.3 kBtu/ft² is about 14% below the average of 64.5 kBtu/ft² — it uses less energy per square foot than the typical building in that group. Its emissions intensity of 5.2 kgCO₂e/ft² is about 11% below the group average of 5.8 kgCO₂e/ft².

At 173,891 sq ft, it is about 15% below the average floor area of 205,440 sq ft for those buildings. It was built in 1902, 38 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 641 Avenue of the Americas's energy performance changed over time?

BuildingCensus holds 2 New York City disclosures for 641 Avenue of the Americas, covering report years 2023–2024. Its ENERGY STAR score went from 70 in 2023 to 78 in 2024 (+8 points). Site EUI moved from 52.9 kBtu/ft² (2023) to 55.3 kBtu/ft² (2024), an 5% increase. Reported emissions went from 911 tCO₂e to 902 tCO₂e over the same span (down 1%).

What does an ENERGY STAR score of 78 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 78 means the building performs better than about 78% of its national peers. BuildingCensus bands the score into report-card grades; 78 falls in band B — above median (70–84). 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. 641 Avenue of the Americas's 55.3 kBtu/ft² across 173,891 sq ft works out to about 9.6 billion Btu (2,818 MWh-equivalent) in 2024. Its source EUI of 116.3 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 1,588,915 kWh of electricity and 726 thousand gallons of water for the year.

Which law requires 641 Avenue of the Americas to report its energy use?

641 Avenue of the Americas 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:33978983:2024). 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.