55 M Street
Office in Washington, DC, DC · 55 M Street SE, Suite 100 · 20003
At a glance
55 M Street is a 269,974-square-foot office building at 55 M Street SE, Suite 100 in Washington, DC, built in 2009. In its 2024 Washington, DC benchmarking disclosure it reported a site energy-use intensity of 36.8 kBtu/ft² and 872 tCO₂e of greenhouse-gas emissions.
Clean and Affordable Energy Act / BEPS · reporting year 2024
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | — |
| Site EUI | 36.8 kBtu/ft² |
| Source EUI | 103.1 kBtu/ft² |
| GHG emissions | 872 tCO₂e |
| GHG intensity | 3.2 kgCO₂e/ft² |
| Electricity | 2,912,719 kWh |
| Natural gas | 0 therms |
| Water use | 3,621 kgal |
| Gross floor area | 269,974 sq ft |
| Source record | dc:PM4037665:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | — | 36.8 kBtu/ft² | 872 tCO₂e | |
| 2023 | — | 36.9 kBtu/ft² | 896 tCO₂e | |
| 2022 | 74 | 38.2 kBtu/ft² | 905 tCO₂e | |
| 2021 | — | 30.5 kBtu/ft² | 868 tCO₂e | |
| 2020 | 76 | -2 | 38.1 kBtu/ft² | 1,140 tCO₂e |
| 2019 | 78 | -16 | 49.5 kBtu/ft² | 1,215 tCO₂e |
| 2015 | 94 | +1 | 42.3 kBtu/ft² | 1,452 tCO₂e |
| 2014 | 93 | 41.5 kBtu/ft² | 1,582 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
55M DC OWNER LLC
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Location
- Address
- 55 M Street SE, Suite 100
- City
- Washington, DC
- State
- District of Columbia
- ZIP
- 20003
- Coordinates
- 38.87599, -77.00721
Within ~1 km
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See also: most efficient in Washington, DC · biggest emitters
How does 55 M Street compare with other office buildings in Washington, DC?
The latest disclosures cover 899 office buildings in Washington, DC, out of 6,870 buildings citywide. Its site EUI of 36.8 kBtu/ft² is about 34% 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 3.2 kgCO₂e/ft² is about 35% below the group average of 5.0 kgCO₂e/ft².
At 269,974 sq ft, it is about 25% above the average floor area of 216,135 sq ft for those buildings. It was built in 2009, 35 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 55 M Street's energy performance changed over time?
BuildingCensus holds 8 Washington, DC disclosures for 55 M Street, covering report years 2014, 2015, 2019, 2020, 2021, 2022, 2023, 2024. Its ENERGY STAR score went from 93 in 2014 to 74 in 2022 (-19 points); its best year on file was 2015, at 94. Site EUI moved from 41.5 kBtu/ft² (2014) to 36.8 kBtu/ft² (2024), a 11% decrease. Reported emissions went from 1,582 tCO₂e to 872 tCO₂e over the same span (down 45%).
What does a site EUI of 36.8 kBtu/ft² mean?
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. 55 M Street's 36.8 kBtu/ft² across 269,974 sq ft works out to about 9.9 billion Btu (2,912 MWh-equivalent) in 2024. Its source EUI of 103.1 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 2,912,719 kWh of electricity, 0 therms of natural gas and 3,621 thousand gallons of water for the year.
Which law requires 55 M Street to report its energy use?
55 M Street 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:PM4037665:2024). 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
- 1990 K Street· 269,000 sq ft · score 75 (B)
- 1201 F St· 268,681 sq ft · score 70 (B)
- John A. Wilson Building· 268,381 sq ft · score 41 (D)
- 100 M Street SE· 267,814 sq ft · score 88 (A)
- Farragut Center· 266,840 sq ft · score 83 (B)
- 455 Mass Ave· 263,181 sq ft · EUI 36.7 kBtu/ft²
- 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 55 M Street's energy grade?
55 M Street did not report an ENERGY STAR score in its 2024 disclosure, but its site energy-use intensity was 36.8 kBtu/ft².
How much energy does 55 M Street use?
Its 2024 site energy-use intensity was 36.8 kBtu/ft² (103.1 kBtu/ft² source) across 269,974 sq ft, including 2,912,719 kWh of electricity and 0 therms of natural gas.
What are 55 M Street's carbon emissions?
55 M Street reported 872 tCO₂e of greenhouse-gas emissions (3.2 kgCO₂e/ft²) for 2024.
Where is 55 M Street?
55 M Street is at 55 M Street SE, Suite 100, in Washington, DC 20003. Its coordinates are 38.87599, -77.00721 (latitude, longitude), as published in the Building Energy Benchmarking file.
How big is 55 M Street and when was it built?
55 M Street has 269,974 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 2009 as its year built. It is classed as office.
Is 55 M Street 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, “55 M Street, Washington, DC — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/washington-dc/55-m-street-4d69053d (data as of July 9, 2026).