1201 L Street NW
Office in Washington, DC, DC · 20005
At a glance
1201 L Street NW is a 35,395-square-foot office building in Washington, DC, built in 1988. In its 2023 Washington, DC benchmarking disclosure it reported an ENERGY STAR score of 41 out of 100 (grade D), a site energy-use intensity of 52.4 kBtu/ft² and 167 tCO₂e of greenhouse-gas emissions. That score is higher than 9% of the 774 scored office buildings in Washington, DC.
Clean and Affordable Energy Act / BEPS · reporting year 2023
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 41 (band D) |
| Site EUI | 52.4 kBtu/ft² |
| Source EUI | 146.8 kBtu/ft² |
| GHG emissions | 167 tCO₂e |
| GHG intensity | 4.7 kgCO₂e/ft² |
| Electricity | 543,740 kWh |
| Natural gas | 0 therms |
| Water use | 74 kgal |
| Gross floor area | 35,395 sq ft |
| Source record | dc:PM1632875:2023 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2023latest | 41 | -5 | 52.4 kBtu/ft² | 167 tCO₂e |
| 2022 | 46 | 55.2 kBtu/ft² | 176 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
A E IMPACT II LLC
Own or manage this building? Claim it to correct the record and get compliance alerts.
Location
- Address
- 1201 L Street NW
- City
- Washington, DC
- State
- District of Columbia
- ZIP
- 20005
- Coordinates
- 38.90396, -77.02843
Within ~1 km
Nearby benchmarked buildings
Convention Center · 1,750,000 sq ft
Hotel · 1,081,202 sq ft
Multifamily Housing · 1,075,449 sq ft
- Midtown Centerscore 91
Office · 911,093 sq ft
Office · 887,915 sq ft
Office · 876,744 sq ft
See also: most efficient in Washington, DC · biggest emitters
How does 1201 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. 1201 L Street NW's ENERGY STAR score of 41 compares with an average of 70 across the 774 that report a score; it scores higher than 9% of them and lower than 89%. Its site EUI of 52.4 kBtu/ft² is roughly in line with 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 4.7 kgCO₂e/ft² is roughly in line with the group average of 5.0 kgCO₂e/ft².
At 35,395 sq ft, it is about 84% below the average floor area of 216,135 sq ft for those buildings. It was built in 1988, 14 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 1201 L Street NW's energy performance changed over time?
BuildingCensus holds 2 Washington, DC disclosures for 1201 L Street NW, covering report years 2022–2023. Its ENERGY STAR score went from 46 in 2022 to 41 in 2023 (-5 points); its best year on file was 2022, at 46. Site EUI moved from 55.2 kBtu/ft² (2022) to 52.4 kBtu/ft² (2023), a 5% decrease. Reported emissions went from 176 tCO₂e to 167 tCO₂e over the same span (down 5%).
What does an ENERGY STAR score of 41 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 41 means the building performs better than about 41% of its national peers. BuildingCensus bands the score into report-card grades; 41 falls in band D — lowest band (1–54). It sits 34 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. 1201 L Street NW's 52.4 kBtu/ft² across 35,395 sq ft works out to about 1.9 billion Btu (544 MWh-equivalent) in 2023. Its source EUI of 146.8 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 543,740 kWh of electricity, 0 therms of natural gas and 74 thousand gallons of water for the year.
Which law requires 1201 L Street NW to report its energy use?
1201 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 2023 disclosure (source record dc:PM1632875:2023). 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
- 412 First Street· 35,281 sq ft · score 51 (D)
- Public Welfare Foundation· 35,220 sq ft · score 53 (D)
- Lumbershed· 35,095 sq ft · EUI 236.2 kBtu/ft²
- Leading Age· 35,000 sq ft · score 25 (D)
- King Office Building· 34,500 sq ft · score 59 (C)
- Allen Mitchell Building· 34,462 sq ft · score 41 (D)
- 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 1201 L Street NW's energy grade?
1201 L Street NW scores 41 out of 100 on ENERGY STAR — band D, lowest band (1–54) — in its 2023 Washington, DC disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does 1201 L Street NW use?
Its 2023 site energy-use intensity was 52.4 kBtu/ft² (146.8 kBtu/ft² source) across 35,395 sq ft, including 543,740 kWh of electricity and 0 therms of natural gas.
What are 1201 L Street NW's carbon emissions?
1201 L Street NW reported 167 tCO₂e of greenhouse-gas emissions (4.7 kgCO₂e/ft²) for 2023.
Where is 1201 L Street NW?
1201 L Street NW is in Washington, DC 20005. Its coordinates are 38.90396, -77.02843 (latitude, longitude), as published in the Building Energy Benchmarking file.
How big is 1201 L Street NW and when was it built?
1201 L Street NW has 35,395 sq ft of gross floor area, as reported in its 2023 disclosure. The disclosure lists 1988 as its year built. It is classed as office.
Is 1201 L Street NW covered by the Clean and Affordable Energy Act / BEPS?
Yes — it appears in the 2023 Building Energy Benchmarking disclosure, which lists the buildings reporting under the Clean and Affordable Energy Act / BEPS.
Working with Washington, DC building benchmarking records? Pro adds alerts, change history and CSV export ($49/mo); Enterprise adds full national files, the API and an MCP server for AI tools.
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, “1201 L Street NW, Washington, DC — 2023 benchmarking disclosure”, https://buildingcensus.com/buildings/washington-dc/1201-l-street-nw-20680b2b (data as of July 9, 2026).