1901 L Street NW
Office in Washington, DC, DC · 20036
At a glance
1901 L Street NW is a 212,443-square-foot office building in Washington, DC, built in 1978. In its 2024 Washington, DC benchmarking disclosure it reported an ENERGY STAR score of 86 out of 100 (grade A), a site energy-use intensity of 37.3 kBtu/ft² and 663 tCO₂e of greenhouse-gas emissions. That score is higher than 81% 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 | 86 (band A) |
| Site EUI | 37.3 kBtu/ft² |
| Source EUI | 96.6 kBtu/ft² |
| GHG emissions | 663 tCO₂e |
| GHG intensity | 3.1 kgCO₂e/ft² |
| Electricity | 2,043,313 kWh |
| Natural gas | 9,562 therms |
| Water use | 2,783 kgal |
| Gross floor area | 212,443 sq ft |
| Source record | dc:PM12772199:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 86 | +1 | 37.3 kBtu/ft² | 663 tCO₂e |
| 2023 | 85 | +2 | 37.2 kBtu/ft² | 676 tCO₂e |
| 2022 | 83 | 41.0 kBtu/ft² | 722 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
TMG 1901 L STREET LLC
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Location
- Address
- 1901 L Street NW
- City
- Washington, DC
- State
- District of Columbia
- ZIP
- 20036
- Coordinates
- 38.90403, -77.04389
Within ~1 km
Nearby benchmarked buildings
- BEPS1 - Foggy Bottom Campusscore —
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- International Squarescore 56
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- Ross Hall Groupscore —
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- Columbia Plaza All Bldgsscore 30
Multifamily Housing · 942,990 sq ft
- Lafayette Centrescore 74
Office · 908,482 sq ft
See also: most efficient in Washington, DC · biggest emitters
How does 1901 L 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. 1901 L Street NW's ENERGY STAR score of 86 compares with an average of 70 across the 774 that report a score; it scores higher than 81% of them and lower than 17%. Its site EUI of 37.3 kBtu/ft² is about 33% 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 3.1 kgCO₂e/ft² is about 38% below the group average of 5.0 kgCO₂e/ft².
At 212,443 sq ft, it is roughly in line with the average floor area of 216,135 sq ft for those buildings. It was built in 1978, 4 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 1901 L Street NW's energy performance changed over time?
BuildingCensus holds 3 Washington, DC disclosures for 1901 L Street NW, covering report years 2022–2024. Its ENERGY STAR score went from 83 in 2022 to 86 in 2024 (+3 points). Site EUI moved from 41.0 kBtu/ft² (2022) to 37.3 kBtu/ft² (2024), a 9% decrease. Reported emissions went from 722 tCO₂e to 663 tCO₂e over the same span (down 8%).
What does an ENERGY STAR score of 86 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 86 means the building performs better than about 86% of its national peers. BuildingCensus bands the score into report-card grades; 86 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. 1901 L Street NW's 37.3 kBtu/ft² across 212,443 sq ft works out to about 7.9 billion Btu (2,322 MWh-equivalent) in 2024. Its source EUI of 96.6 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 2,043,313 kWh of electricity, 9,562 therms of natural gas and 2,783 thousand gallons of water for the year.
Which law requires 1901 L Street NW to report its energy use?
1901 L 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:PM12772199:2024). 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
- Normandy- Capitol Place III· 212,247 sq ft · score 71 (B)
- 2025 M Street (DDOE)· 210,801 sq ft · score 63 (C)
- 799 9th street· 210,645 sq ft · score 80 (B)
- 1575 Eye Street (DDOE)· 209,252 sq ft · score 83 (B)
- Waterfront· 207,863 sq ft · score 46 (D)
- 2025 M Street· 207,776 sq ft · score 58 (C)
- 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 1901 L Street NW's energy grade?
1901 L Street NW scores 86 out of 100 on ENERGY STAR — band A, high performer (85–100) — in its 2024 Washington, DC disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does 1901 L Street NW use?
Its 2024 site energy-use intensity was 37.3 kBtu/ft² (96.6 kBtu/ft² source) across 212,443 sq ft, including 2,043,313 kWh of electricity and 9,562 therms of natural gas.
What are 1901 L Street NW's carbon emissions?
1901 L Street NW reported 663 tCO₂e of greenhouse-gas emissions (3.1 kgCO₂e/ft²) for 2024.
Where is 1901 L Street NW?
1901 L Street NW is in Washington, DC 20036. Its coordinates are 38.90403, -77.04389 (latitude, longitude), as published in the Building Energy Benchmarking file.
How big is 1901 L Street NW and when was it built?
1901 L Street NW has 212,443 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1978 as its year built. It is classed as office.
Is 1901 L 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, “1901 L Street NW, Washington, DC — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/washington-dc/1901-l-street-nw-9b7670cc (data as of July 9, 2026).