Tilden Court Condominium

How does Tilden Court Condominium 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. Tilden Court Condominium's ENERGY STAR score of 88 compares with an average of 72 across the 1,618 that report a score; it scores higher than 65% of them and lower than 32%. Its site EUI of 53.2 kBtu/ft² is roughly in line with the average of 51.1 kBtu/ft². Its emissions intensity of 3.2 kgCO₂e/ft² is about 15% below the group average of 3.8 kgCO₂e/ft².

At 76,786 sq ft, it is about 44% below the average floor area of 136,346 sq ft for those buildings. It was built in 1930, 35 years earlier than 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 Tilden Court Condominium's energy performance changed over time?

BuildingCensus holds 7 Washington, DC disclosures for Tilden Court Condominium, covering report years 2018–2024. Its ENERGY STAR score went from 82 in 2018 to 88 in 2024 (+6 points); its best year on file was 2023, at 92. Site EUI moved from 63.5 kBtu/ft² (2018) to 53.2 kBtu/ft² (2024), a 16% decrease. Reported emissions went from 299 tCO₂e to 248 tCO₂e over the same span (down 17%).

What does an ENERGY STAR score of 88 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 88 means the building performs better than about 88% of its national peers. BuildingCensus bands the score into report-card grades; 88 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. Tilden Court Condominium's 53.2 kBtu/ft² across 76,786 sq ft works out to about 4.1 billion Btu (1,197 MWh-equivalent) in 2024. Its source EUI of 76.5 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 265,691 kWh of electricity, 31,786 therms of natural gas and 418 thousand gallons of water for the year.

Which law requires Tilden Court Condominium to report its energy use?

Tilden Court Condominium 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:PM30930709:2024). 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.