1824 Madison Avenue

How does 1824 Madison Avenue 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. 1824 Madison Avenue's ENERGY STAR score of 49 compares with an average of 72 across the 2,519 that report a score; it scores higher than 16% of them and lower than 84%. Its site EUI of 150.1 kBtu/ft² is about 133% 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 13.5 kgCO₂e/ft² is about 133% above the group average of 5.8 kgCO₂e/ft².

At 29,723 sq ft, it is about 86% below the average floor area of 205,440 sq ft for those buildings. It was built in 2011, 71 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.

How has 1824 Madison Avenue's energy performance changed over time?

BuildingCensus holds 2 New York City disclosures for 1824 Madison Avenue, covering report years 2022–2023. Its ENERGY STAR score went from 47 in 2022 to 49 in 2023 (+2 points). Site EUI moved from 158.6 kBtu/ft² (2022) to 150.1 kBtu/ft² (2023), a 5% decrease. Reported emissions went from 347 tCO₂e to 401 tCO₂e over the same span (up 16%).

What does an ENERGY STAR score of 49 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 49 means the building performs better than about 49% of its national peers. BuildingCensus bands the score into report-card grades; 49 falls in band D — lowest band (1–54). It sits 26 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. 1824 Madison Avenue's 150.1 kBtu/ft² across 29,723 sq ft works out to about 4.5 billion Btu (1,308 MWh-equivalent) in 2023. Its source EUI of 331.5 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 865,517 kWh of electricity and 15,097 therms of natural gas for the year.

Which law requires 1824 Madison Avenue to report its energy use?

1824 Madison Avenue 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 2023 disclosure (source record nyc:8705251:2023). 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.