Mark Hertz - 400 Convent Ave

How does Mark Hertz - 400 Convent Ave 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. Mark Hertz - 400 Convent Ave's ENERGY STAR score of 86 compares with an average of 63 across the 22,829 that report a score; it scores higher than 71% of them and lower than 28%. Its site EUI of 78.4 kBtu/ft² is roughly in line with the average of 74.9 kBtu/ft². Its emissions intensity of 5.9 kgCO₂e/ft² is about 13% above the group average of 5.2 kgCO₂e/ft².

At 41,460 sq ft, it is about 59% below the average floor area of 100,951 sq ft for those buildings. It was built in 1926, 26 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.

What does an ENERGY STAR score of 86 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 86 means the building performs better than about 86% of its national peers. BuildingCensus bands the score into report-card grades; 86 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. Mark Hertz - 400 Convent Ave's 78.4 kBtu/ft² across 41,460 sq ft works out to about 3.3 billion Btu (953 MWh-equivalent) in 2022. Its source EUI of 99.1 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 134,831 kWh of electricity for the year.

Which law requires Mark Hertz - 400 Convent Ave to report its energy use?

Mark Hertz - 400 Convent Ave 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 2022 disclosure (source record nyc:21300501:2022). 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.