50-56 West 66th Street

How does 50-56 West 66th Street 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. 50-56 West 66th Street's ENERGY STAR score of 64 compares with an average of 72 across the 2,519 that report a score; it scores higher than 27% of them and lower than 71%. Its site EUI of 74.2 kBtu/ft² is about 15% 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 6.1 kgCO₂e/ft² is roughly in line with the group average of 5.8 kgCO₂e/ft².

At 61,449 sq ft, it is about 70% below the average floor area of 205,440 sq ft for those buildings. It was built in 1950, 10 years later 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.

What does an ENERGY STAR score of 64 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 64 means the building performs better than about 64% of its national peers. BuildingCensus bands the score into report-card grades; 64 falls in band C — below median (55–69). It sits 11 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. 50-56 West 66th Street's 74.2 kBtu/ft² across 61,449 sq ft works out to about 4.6 billion Btu (1,336 MWh-equivalent) in 2024. Its source EUI of 139.0 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 628,389 kWh of electricity and 24,160 therms of natural gas for the year.

Which law requires 50-56 West 66th Street to report its energy use?

50-56 West 66th Street 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:53949593:2024). 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.