801 Eighteenth Street, NW
Office in Washington, DC, DC · 20006
At a glance
801 Eighteenth Street, NW is a 51,451-square-foot office building in Washington, DC, built in 1982. In its 2024 Washington, DC benchmarking disclosure it reported an ENERGY STAR score of 50 out of 100 (grade D), a site energy-use intensity of 44.0 kBtu/ft² and 199 tCO₂e of greenhouse-gas emissions. That score is higher than 15% of the 774 scored office buildings in Washington, DC.
Clean and Affordable Energy Act / BEPS · reporting year 2024
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 50 (band D) |
| Site EUI | 44.0 kBtu/ft² |
| Source EUI | 123.3 kBtu/ft² |
| GHG emissions | 199 tCO₂e |
| GHG intensity | 3.9 kgCO₂e/ft² |
| Electricity | 663,837 kWh |
| Natural gas | 0 therms |
| Water use | 389 kgal |
| Gross floor area | 51,451 sq ft |
| Source record | dc:PM4376473:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 50 | -7 | 44.0 kBtu/ft² | 199 tCO₂e |
| 2023 | 57 | +9 | 38.7 kBtu/ft² | 175 tCO₂e |
| 2022 | 48 | +4 | 47.8 kBtu/ft² | 216 tCO₂e |
| 2021 | 44 | -2 | 50.0 kBtu/ft² | 223 tCO₂e |
| 2020 | 46 | +20 | 48.4 kBtu/ft² | 223 tCO₂e |
| 2019 | 26 | -12 | 73.9 kBtu/ft² | 334 tCO₂e |
| 2018 | 38 | -8 | 63.6 kBtu/ft² | 288 tCO₂e |
| 2017 | 46 | ±0 | 65.8 kBtu/ft² | 339 tCO₂e |
| 2016 | 46 | +15 | 67.3 kBtu/ft² | 380 tCO₂e |
| 2015 | 31 | +13 | 74.9 kBtu/ft² | 493 tCO₂e |
| 2014 | 18 | -9 | 87.3 kBtu/ft² | 574 tCO₂e |
| 2013 | 27 | 77.1 kBtu/ft² | 507 tCO₂e |
Compliance context
Clean and Affordable Energy Act / BEPS
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.
Ownership
801 18TH LLC
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Location
- Address
- 801 Eighteenth Street, NW
- City
- Washington, DC
- State
- District of Columbia
- ZIP
- 20006
- Coordinates
- 38.90051, -77.04146
Within ~1 km
Nearby benchmarked buildings
- Main Complexscore 59
Office · 1,872,507 sq ft
- International Squarescore 56
Office · 1,233,833 sq ft
- Midtown Centerscore 91
Office · 911,093 sq ft
- Lafayette Centrescore 74
Office · 908,482 sq ft
- NGS Headquartersscore 68
Office · 746,237 sq ft
- Northwestern Buildingscore 90
Office · 732,964 sq ft
See also: most efficient in Washington, DC · biggest emitters
How does 801 Eighteenth Street, NW compare with other office buildings in Washington, DC?
The latest disclosures cover 899 office buildings in Washington, DC, out of 6,870 buildings citywide. 801 Eighteenth Street, NW's ENERGY STAR score of 50 compares with an average of 70 across the 774 that report a score; it scores higher than 15% of them and lower than 84%. Its site EUI of 44.0 kBtu/ft² is about 21% below the average of 55.6 kBtu/ft² — it uses less energy per square foot than the typical building in that group. Its emissions intensity of 3.9 kgCO₂e/ft² is about 23% below the group average of 5.0 kgCO₂e/ft².
At 51,451 sq ft, it is about 76% below the average floor area of 216,135 sq ft for those buildings. It was built in 1982, 8 years later than the group's average year built (1974). 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 Eighteenth Street, NW's energy performance changed over time?
BuildingCensus holds 12 Washington, DC disclosures for 801 Eighteenth Street, NW, covering report years 2013–2024. Its ENERGY STAR score went from 27 in 2013 to 50 in 2024 (+23 points); its best year on file was 2023, at 57. Site EUI moved from 77.1 kBtu/ft² (2013) to 44.0 kBtu/ft² (2024), a 43% decrease. Reported emissions went from 507 tCO₂e to 199 tCO₂e over the same span (down 61%).
What does an ENERGY STAR score of 50 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 50 means the building performs better than about 50% of its national peers. BuildingCensus bands the score into report-card grades; 50 falls in band D — lowest band (1–54). It sits 25 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. 801 Eighteenth Street, NW's 44.0 kBtu/ft² across 51,451 sq ft works out to about 2.3 billion Btu (663 MWh-equivalent) in 2024. Its source EUI of 123.3 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 663,837 kWh of electricity, 0 therms of natural gas and 389 thousand gallons of water for the year.
Which law requires 801 Eighteenth Street, NW to report its energy use?
801 Eighteenth Street, NW 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:PM4376473:2024). 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.
More office buildings in Washington, DC
- Neon 23· 51,153 sq ft · score 27 (D)
- 1029 Vermont Ave· 51,024 sq ft · score 46 (D)
- TECRO Defense Mission office· 50,879 sq ft · EUI 31.9 kBtu/ft²
- Toronto Building· 50,776 sq ft · score 52 (D)
- 601 Indiana Ave., NW· 50,163 sq ft · score 67 (C)
- 601 Indiana· 50,163 sq ft · score 78 (B)
- Office buildings in Washington, DC· 899 benchmarked
- All Washington, DC benchmarked buildings· Clean and Affordable Energy Act / BEPS
- Most efficient large buildings in Washington, DC
- Least efficient large buildings in Washington, DC
- Biggest emitters in Washington, DC
Frequently asked questions
What is 801 Eighteenth Street, NW's energy grade?
801 Eighteenth Street, NW scores 50 out of 100 on ENERGY STAR — band D, lowest band (1–54) — in its 2024 Washington, DC disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does 801 Eighteenth Street, NW use?
Its 2024 site energy-use intensity was 44.0 kBtu/ft² (123.3 kBtu/ft² source) across 51,451 sq ft, including 663,837 kWh of electricity and 0 therms of natural gas.
What are 801 Eighteenth Street, NW's carbon emissions?
801 Eighteenth Street, NW reported 199 tCO₂e of greenhouse-gas emissions (3.9 kgCO₂e/ft²) for 2024.
Where is 801 Eighteenth Street, NW?
801 Eighteenth Street, NW is in Washington, DC 20006. Its coordinates are 38.90051, -77.04146 (latitude, longitude), as published in the Building Energy Benchmarking file.
How big is 801 Eighteenth Street, NW and when was it built?
801 Eighteenth Street, NW has 51,451 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1982 as its year built. It is classed as office.
Is 801 Eighteenth Street, NW covered by the Clean and Affordable Energy Act / BEPS?
Yes — it appears in the 2024 Building Energy Benchmarking disclosure, which lists the buildings reporting under the Clean and Affordable Energy Act / BEPS.
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About this data
Source: Building Energy Benchmarking (Clean and Affordable Energy Act / BEPS), as published July 9, 2026. See the methodology for how records are matched, cleaned and scored.
Cite as: BuildingCensus, “801 Eighteenth Street, NW, Washington, DC — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/washington-dc/801-eighteenth-street-nw-cc57995f (data as of July 9, 2026).