839 Broadway

How does 839 Broadway 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. 839 Broadway's ENERGY STAR score of 48 compares with an average of 72 across the 2,519 that report a score; it scores higher than 15% of them and lower than 84%. Its site EUI of 51.4 kBtu/ft² is about 20% 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 10% below the group average of 5.8 kgCO₂e/ft².

At 49,426 sq ft, it is about 76% below the average floor area of 205,440 sq ft for those buildings. It was built in 1931, 9 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 839 Broadway's energy performance changed over time?

BuildingCensus holds 3 New York City disclosures for 839 Broadway, covering report years 2022–2024. Its ENERGY STAR score went from 45 in 2022 to 48 in 2024 (+3 points); its best year on file was 2023, at 50. Site EUI moved from 56.7 kBtu/ft² (2022) to 51.4 kBtu/ft² (2024), a 9% decrease. Reported emissions went from 213 tCO₂e to 258 tCO₂e over the same span (up 22%).

What does an ENERGY STAR score of 48 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 48 means the building performs better than about 48% of its national peers. BuildingCensus bands the score into report-card grades; 48 falls in band D — lowest band (1–54). It sits 27 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. 839 Broadway's 51.4 kBtu/ft² across 49,426 sq ft works out to about 2.5 billion Btu (745 MWh-equivalent) in 2024. Its source EUI of 124.4 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 582,346 kWh of electricity and 5,559 therms of natural gas for the year.

Which law requires 839 Broadway to report its energy use?

839 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:21325947:2024). 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.