The Lexington at Market Square I (lx120) (lx147)

How does The Lexington at Market Square I (lx120) (lx147) 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. The Lexington at Market Square I (lx120) (lx147)'s ENERGY STAR score of 12 compares with an average of 72 across the 1,618 that report a score; it scores higher than 3% of them and lower than 96%. Its site EUI of 72.8 kBtu/ft² is about 42% 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 5.1 kgCO₂e/ft² is about 35% above the group average of 3.8 kgCO₂e/ft².

At 97,832 sq ft, it is about 28% below the average floor area of 136,346 sq ft for those buildings. 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 The Lexington at Market Square I (lx120) (lx147)'s energy performance changed over time?

BuildingCensus holds 10 Washington, DC disclosures for The Lexington at Market Square I (lx120) (lx147), covering report years 2014, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024. Its ENERGY STAR score went from 15 in 2016 to 12 in 2024 (-3 points); its best year on file was 2017, at 18. Site EUI moved from 69.9 kBtu/ft² (2014) to 72.8 kBtu/ft² (2024), an 4% increase. Reported emissions went from 720 tCO₂e to 502 tCO₂e over the same span (down 30%).

What does an ENERGY STAR score of 12 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 12 means the building performs better than about 12% of its national peers. BuildingCensus bands the score into report-card grades; 12 falls in band D — lowest band (1–54). It sits 63 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. The Lexington at Market Square I (lx120) (lx147)'s 72.8 kBtu/ft² across 97,832 sq ft works out to about 7.1 billion Btu (2,087 MWh-equivalent) in 2024. Its source EUI of 159.9 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 1,366,960 kWh of electricity, 24,572 therms of natural gas and 4,506 thousand gallons of water for the year.

Which law requires The Lexington at Market Square I (lx120) (lx147) to report its energy use?

The Lexington at Market Square I (lx120) (lx147) 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:PM4007903:2024). 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.