Claridge House Cooperative: 950 25th Street Northwest

How does Claridge House Cooperative: 950 25th Street Northwest compare with other multifamily housing buildings in Washington, DC?

The latest disclosures cover 1,799 multifamily housing buildings in Washington, DC, out of 6,870 buildings citywide. Claridge House Cooperative: 950 25th Street Northwest's ENERGY STAR score of 98 compares with an average of 72 across the 1,618 that report a score; it scores higher than 90% of them and lower than 8%. Its site EUI of 33.9 kBtu/ft² is about 34% below the average of 51.1 kBtu/ft² — it uses less energy per square foot than the typical building in that group. Its emissions intensity of 2.2 kgCO₂e/ft² is about 42% below the group average of 3.8 kgCO₂e/ft².

At 373,216 sq ft, it is about 174% above the average floor area of 136,346 sq ft for those buildings. Its 1966 construction date is close to the group's average year built (1965). 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 Claridge House Cooperative: 950 25th Street Northwest's energy performance changed over time?

BuildingCensus holds 9 Washington, DC disclosures for Claridge House Cooperative: 950 25th Street Northwest, covering report years 2016–2024. Its ENERGY STAR score went from 93 in 2016 to 98 in 2024 (+5 points); its best year on file was 2023, at 98. Site EUI moved from 43.9 kBtu/ft² (2016) to 33.9 kBtu/ft² (2024), a 23% decrease. Reported emissions went from 1,269 tCO₂e to 819 tCO₂e over the same span (down 35%).

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 Washington, DC, 47% 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. Claridge House Cooperative: 950 25th Street Northwest's 33.9 kBtu/ft² across 373,216 sq ft works out to about 12.7 billion Btu (3,708 MWh-equivalent) in 2024. Its source EUI of 61.5 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 1,621,728 kWh of electricity, 71,132 therms of natural gas and 14,905 thousand gallons of water for the year.

Which law requires Claridge House Cooperative: 950 25th Street Northwest to report its energy use?

Claridge House Cooperative: 950 25th Street Northwest reports under the Clean and Affordable Energy Act / BEPS, the legal basis of Washington, DC's Building Energy Benchmarking program, which publishes each covered building's annual benchmarking results. The record shown here is the report-year 2024 disclosure (source record dc:PM5785904:2024). DC's Building Energy Performance Standards (BEPS) require buildings below the performance standard to improve over compliance cycles (the first ends December 31, 2026; later cycles run five years), with penalties for buildings that fail to meet their pathway.