Columbia Grammar and Prep - 4-6 West 93rd Street

How does Columbia Grammar and Prep - 4-6 West 93rd Street compare with other K-12 school buildings in New York City?

The latest disclosures cover 2,301 K-12 school buildings in New York City, out of 48,310 buildings citywide. Columbia Grammar and Prep - 4-6 West 93rd Street's ENERGY STAR score of 72 compares with an average of 64 across the 2,052 that report a score; it scores higher than 53% of them and lower than 46%. Its site EUI of 67.9 kBtu/ft² is about 11% above the average of 61.3 kBtu/ft² — it uses more energy per square foot than the typical building in that group. Its emissions intensity of 5.9 kgCO₂e/ft² is about 23% above the group average of 4.8 kgCO₂e/ft².

At 53,030 sq ft, it is about half of the average floor area of 101,338 sq ft for those buildings. It was built in 2002, 49 years later than the group's average year built (1954). Across all 24 jurisdictions BuildingCensus covers, the 6,548 K-12 school buildings average an ENERGY STAR score of 64 and a site EUI of 52.7 kBtu/ft².

How has Columbia Grammar and Prep - 4-6 West 93rd Street's energy performance changed over time?

BuildingCensus holds 3 New York City disclosures for Columbia Grammar and Prep - 4-6 West 93rd Street, covering report years 2022–2024. Its ENERGY STAR score was 72 in both 2022 and 2024. Site EUI moved from 65.7 kBtu/ft² (2022) to 67.9 kBtu/ft² (2024), an 3% increase. Reported emissions went from 298 tCO₂e to 314 tCO₂e over the same span (up 5%).

What does an ENERGY STAR score of 72 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 72 means the building performs better than about 72% of its national peers. BuildingCensus bands the score into report-card grades; 72 falls in band B — above median (70–84). It sits 3 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. Columbia Grammar and Prep - 4-6 West 93rd Street's 67.9 kBtu/ft² across 53,030 sq ft works out to about 3.6 billion Btu (1,055 MWh-equivalent) in 2024. Its source EUI of 136.6 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 580,227 kWh of electricity and 16,196 therms of natural gas for the year.

Which law requires Columbia Grammar and Prep - 4-6 West 93rd Street to report its energy use?

Columbia Grammar and Prep - 4-6 West 93rd 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:6821261:2024). 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.