414 West 121st Street

How does 414 West 121st Street 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. 414 West 121st Street's ENERGY STAR score of 89 compares with an average of 63 across the 22,829 that report a score; it scores higher than 75% of them and lower than 24%. Its site EUI of 74.5 kBtu/ft² is roughly in line with the average of 74.9 kBtu/ft² — it uses less energy per square foot than the typical building in that group. Its emissions intensity of 5.9 kgCO₂e/ft² is about 13% above the group average of 5.2 kgCO₂e/ft².

At 50,220 sq ft, it is about half of the average floor area of 100,951 sq ft for those buildings. It was built in 1912, 40 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 414 West 121st Street's energy performance changed over time?

BuildingCensus holds 3 New York City disclosures for 414 West 121st Street, covering report years 2022–2024. Its ENERGY STAR score went from 76 in 2022 to 89 in 2024 (+13 points). Site EUI moved from 95.7 kBtu/ft² (2022) to 74.5 kBtu/ft² (2024), a 22% decrease. Reported emissions went from 353 tCO₂e to 296 tCO₂e over the same span (down 16%).

What does an ENERGY STAR score of 89 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 89 means the building performs better than about 89% of its national peers. BuildingCensus bands the score into report-card grades; 89 falls in band A — high performer (85–100). 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. 414 West 121st Street's 74.5 kBtu/ft² across 50,220 sq ft works out to about 3.7 billion Btu (1,096 MWh-equivalent) in 2024. Its source EUI of 99.2 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 193,654 kWh of electricity, 5,235 therms of natural gas and 2,385 thousand gallons of water for the year.

Which law requires 414 West 121st Street to report its energy use?

414 West 121st 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:3392482:2024). 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.