801 Thompson Avenue

How does 801 Thompson Avenue compare with other office buildings in Montgomery County?

The latest disclosures cover 414 office buildings in Montgomery County, out of 1,766 buildings citywide. 801 Thompson Avenue's ENERGY STAR score of 35 compares with an average of 63 across the 325 that report a score; it scores higher than 15% of them and lower than 84%. Its site EUI of 80.4 kBtu/ft² is about 21% above the average of 66.5 kBtu/ft² — it uses more energy per square foot than the typical building in that group.

At 54,356 sq ft, it is about 59% below the average floor area of 132,356 sq ft for those buildings. It was built in 1960, 27 years earlier than the group's average year built (1987). Across all 24 jurisdictions BuildingCensus covers, the 15,264 office buildings average an ENERGY STAR score of 73 and a site EUI of 59.3 kBtu/ft².

How has 801 Thompson Avenue's energy performance changed over time?

BuildingCensus holds 2 Montgomery County disclosures for 801 Thompson Avenue, covering report years 2023–2024. Its ENERGY STAR score went from 53 in 2023 to 35 in 2024 (-18 points); its best year on file was 2023, at 53. Site EUI moved from 95.5 kBtu/ft² (2023) to 80.4 kBtu/ft² (2024), a 16% decrease. Reported emissions went from 374 tCO₂e to 308 tCO₂e over the same span (down 18%).

What does an ENERGY STAR score of 35 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 35 means the building performs better than about 35% of its national peers. BuildingCensus bands the score into report-card grades; 35 falls in band D — lowest band (1–54). It sits 40 points below 75, the threshold for ENERGY STAR certification. In Montgomery County, 53% 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. 801 Thompson Avenue's 80.4 kBtu/ft² across 54,356 sq ft works out to about 4.4 billion Btu (1,281 MWh-equivalent) in 2024. Its source EUI of 154.7 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 639,579 kWh of electricity and 21,867 therms of natural gas for the year.

Which law requires 801 Thompson Avenue to report its energy use?

801 Thompson Avenue reports under the Benchmarking Law (Bill 2-14) / BEPS (Bill 16-21), the legal basis of Montgomery County's Commercial 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 montgomery_county:19920852:2024). Montgomery County's BEPS (Bill 16-21; regulations approved in 2025) sets declining site-EUI standards for buildings of 25,000+ sq ft, with interim and then final standards later this decade and into the 2030s depending on building type.