REDFERN

How does REDFERN 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. REDFERN's ENERGY STAR score of 98 compares with an average of 63 across the 22,829 that report a score; it scores higher than 87% of them and lower than 12%. Its site EUI of 29.3 kBtu/ft² is about 61% below 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 3.1 kgCO₂e/ft² is about 39% below the group average of 5.2 kgCO₂e/ft².

At 627,580 sq ft, it is about 522% above the average floor area of 100,951 sq ft for those buildings. It was built in 1959, 7 years later 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 REDFERN's energy performance changed over time?

BuildingCensus holds 3 New York City disclosures for REDFERN, covering report years 2022–2024. Its ENERGY STAR score went from 100 in 2022 to 98 in 2024 (-2 points); its best year on file was 2022, at 100. Site EUI moved from 0.6 kBtu/ft² (2022) to 29.3 kBtu/ft² (2024), an 4783% increase. Reported emissions went from 19 tCO₂e to 1,980 tCO₂e over the same span (up 10544%).

What does an ENERGY STAR score of 98 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 98 means the building performs better than about 98% of its national peers. BuildingCensus bands the score into report-card grades; 98 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. REDFERN's 29.3 kBtu/ft² across 627,580 sq ft works out to about 18.4 billion Btu (5,389 MWh-equivalent) in 2024. Its source EUI of 75.9 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 4,737,054 kWh of electricity and 22,532 therms of natural gas for the year.

Which law requires REDFERN to report its energy use?

REDFERN 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:2831162:2024). 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.