Westin DC City Center
Hotel in Washington, DC, DC · 1400 M Street NW · 20005
At a glance
Westin DC City Center is a 342,929-square-foot hotel at 1400 M Street NW in Washington, DC, built in 1982. In its 2024 Washington, DC benchmarking disclosure it reported an ENERGY STAR score of 64 out of 100 (grade C), a site energy-use intensity of 92.0 kBtu/ft² and 2,238 tCO₂e of greenhouse-gas emissions. That score is higher than 52% of the 251 scored hotel buildings in Washington, DC.
Clean and Affordable Energy Act / BEPS · reporting year 2024
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 64 (band C) |
| Site EUI | 92.0 kBtu/ft² |
| Source EUI | 179.3 kBtu/ft² |
| GHG emissions | 2,238 tCO₂e |
| GHG intensity | 6.5 kgCO₂e/ft² |
| Electricity | 4,745,151 kWh |
| Natural gas | 153,745 therms |
| Water use | 12,952 kgal |
| Gross floor area | 342,929 sq ft |
| Source record | dc:PM14915305:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 64 | -3 | 92.0 kBtu/ft² | 2,238 tCO₂e |
| 2023 | 67 | -5 | 89.4 kBtu/ft² | 2,197 tCO₂e |
| 2022 | 72 | 83.7 kBtu/ft² | 2,107 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
DIAMONDROCK DC M STREET OWNER LLC
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Location
- Address
- 1400 M Street NW
- City
- Washington, DC
- State
- District of Columbia
- ZIP
- 20005
- Coordinates
- 38.90532, -77.03344
Within ~1 km
Nearby benchmarked buildings
- Midtown Centerscore 91
Office · 911,093 sq ft
- Hyatt Grand Washington DCscore 67
Hotel · 819,138 sq ft
- 1300 Buildingscore 95
Bank/Financial Institution · 803,167 sq ft
- NGS Headquartersscore 68
Office · 746,237 sq ft
- Washington Squarescore 81
Office · 720,712 sq ft
- Metropolitan Squarescore 87
Office · 718,241 sq ft
See also: most efficient in Washington, DC · biggest emitters
How does Westin DC City Center compare with other hotel buildings in Washington, DC?
The latest disclosures cover 257 hotel buildings in Washington, DC, out of 6,870 buildings citywide. Westin DC City Center's ENERGY STAR score of 64 compares with an average of 58 across the 251 that report a score; it scores higher than 52% of them and lower than 45%. Its site EUI of 92.0 kBtu/ft² is roughly in line with the average of 87.6 kBtu/ft². Its emissions intensity of 6.5 kgCO₂e/ft² is roughly in line with the group average of 6.9 kgCO₂e/ft².
At 342,929 sq ft, it is about 51% above the average floor area of 227,860 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 3,812 hotel buildings average an ENERGY STAR score of 65 and a site EUI of 77.8 kBtu/ft².
How has Westin DC City Center's energy performance changed over time?
BuildingCensus holds 3 Washington, DC disclosures for Westin DC City Center, covering report years 2022–2024. Its ENERGY STAR score went from 72 in 2022 to 64 in 2024 (-8 points); its best year on file was 2022, at 72. Site EUI moved from 83.7 kBtu/ft² (2022) to 92.0 kBtu/ft² (2024), an 10% increase. Reported emissions went from 2,107 tCO₂e to 2,238 tCO₂e over the same span (up 6%).
What does an ENERGY STAR score of 64 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 64 means the building performs better than about 64% of its national peers. BuildingCensus bands the score into report-card grades; 64 falls in band C — below median (55–69). It sits 11 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. Westin DC City Center's 92.0 kBtu/ft² across 342,929 sq ft works out to about 31.5 billion Btu (9,246 MWh-equivalent) in 2024. Its source EUI of 179.3 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 4,745,151 kWh of electricity, 153,745 therms of natural gas and 12,952 thousand gallons of water for the year.
Which law requires Westin DC City Center to report its energy use?
Westin DC City Center 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:PM14915305:2024). 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 hotel buildings in Washington, DC
- Westin DC· 330,100 sq ft · score 82 (B)
- 33721-WASMC-Washington Marriott at Metro Center· 321,193 sq ft · score 71 (B)
- EMB Washington Convention Center-SV· 311,119 sq ft · score 78 (B)
- Embassy Suites Georgetown· 306,123 sq ft · score 100 (A)
- Embassy Suites by Hilton Washington DC Georgetown (WASDN)· 306,123 sq ft · score 64 (C)
- AC Washington DC· 303,144 sq ft · score 100 (A)
- Hotel buildings in Washington, DC· 257 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 Westin DC City Center's energy grade?
Westin DC City Center scores 64 out of 100 on ENERGY STAR — band C, below median (55–69) — in its 2024 Washington, DC disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does Westin DC City Center use?
Its 2024 site energy-use intensity was 92.0 kBtu/ft² (179.3 kBtu/ft² source) across 342,929 sq ft, including 4,745,151 kWh of electricity and 153,745 therms of natural gas.
What are Westin DC City Center's carbon emissions?
Westin DC City Center reported 2,238 tCO₂e of greenhouse-gas emissions (6.5 kgCO₂e/ft²) for 2024.
Where is Westin DC City Center?
Westin DC City Center is at 1400 M Street NW, in Washington, DC 20005. Its coordinates are 38.90532, -77.03344 (latitude, longitude), as published in the Building Energy Benchmarking file.
How big is Westin DC City Center and when was it built?
Westin DC City Center has 342,929 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1982 as its year built. It is classed as hotel.
Is Westin DC City Center 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, “Westin DC City Center, Washington, DC — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/washington-dc/westin-dc-city-center-c1d9af80 (data as of July 9, 2026).