Hill House

How does Hill House 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. Hill House's ENERGY STAR score of 64 compares with an average of 72 across the 1,618 that report a score; it scores higher than 31% of them and lower than 68%. Its site EUI of 68.3 kBtu/ft² is about 34% above the average of 51.1 kBtu/ft² — it uses more energy per square foot than the typical building in that group. Its emissions intensity of 4.4 kgCO₂e/ft² is about 17% above the group average of 3.8 kgCO₂e/ft².

At 60,842 sq ft, it is about 55% below the average floor area of 136,346 sq ft for those buildings. It was built in 1959, 6 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 Hill House's energy performance changed over time?

BuildingCensus holds 12 Washington, DC disclosures for Hill House, covering report years 2013–2024. Its ENERGY STAR score went from 35 in 2014 to 64 in 2024 (+29 points); its best year on file was 2022, at 65. Site EUI moved from 53.1 kBtu/ft² (2013) to 68.3 kBtu/ft² (2024), an 29% increase. Reported emissions went from 287 tCO₂e to 270 tCO₂e over the same span (down 6%).

What does an ENERGY STAR score of 64 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 64 means the building performs better than about 64% of its national peers. BuildingCensus bands the score into report-card grades; 64 falls in band C — below median (55–69). It sits 11 points below 75, the threshold for ENERGY STAR certification. 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. Hill House's 68.3 kBtu/ft² across 60,842 sq ft works out to about 4.2 billion Btu (1,218 MWh-equivalent) in 2024. Its source EUI of 112.6 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 417,350 kWh of electricity, 27,295 therms of natural gas and 1,959 thousand gallons of water for the year.

Which law requires Hill House to report its energy use?

Hill House 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:PM3997905:2024). 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.