311WC - WASFB - Courtyard Washington, DC/Foggy Bottom
Hotel in Washington, DC, DC · 515 20th St NW · 20006
At a glance
311WC - WASFB - Courtyard Washington, DC/Foggy Bottom is a 101,074-square-foot hotel at 515 20th St NW in Washington, DC, built in 2012. In its 2024 Washington, DC benchmarking disclosure it reported an ENERGY STAR score of 45 out of 100 (grade D), a site energy-use intensity of 89.3 kBtu/ft² and 694 tCO₂e of greenhouse-gas emissions. That score is higher than 29% 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 | 45 (band D) |
| Site EUI | 89.3 kBtu/ft² |
| Source EUI | 201.0 kBtu/ft² |
| GHG emissions | 694 tCO₂e |
| GHG intensity | 6.9 kgCO₂e/ft² |
| Electricity | 1,815,410 kWh |
| Natural gas | 28,290 therms |
| Water use | 3,931 kgal |
| Gross floor area | 101,074 sq ft |
| Source record | dc:PM4175578:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 45 | +11 | 89.3 kBtu/ft² | 694 tCO₂e |
| 2023 | 34 | -6 | 102.0 kBtu/ft² | 766 tCO₂e |
| 2022 | 40 | -14 | 100.8 kBtu/ft² | 751 tCO₂e |
| 2021 | 54 | -5 | 87.9 kBtu/ft² | 673 tCO₂e |
| 2020 | 59 | +16 | 81.6 kBtu/ft² | 619 tCO₂e |
| 2019 | 43 | +28 | 97.4 kBtu/ft² | 763 tCO₂e |
| 2018 | 15 | -4 | 125.1 kBtu/ft² | 791 tCO₂e |
| 2017 | 19 | -3 | 120.8 kBtu/ft² | 871 tCO₂e |
| 2016 | 22 | +1 | 118.4 kBtu/ft² | 887 tCO₂e |
| 2015 | 21 | 122.3 kBtu/ft² | 1,022 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
ALL STATES HOTEL COMPANY LLC
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Location
- Address
- 515 20th St NW
- City
- Washington, DC
- State
- District of Columbia
- ZIP
- 20006
- Coordinates
- 38.89651, -77.04469
Within ~1 km
Nearby benchmarked buildings
- BEPS1 - Foggy Bottom Campusscore —
Mixed Use Property · 5,533,789 sq ft
- Main Complexscore 59
Office · 1,872,507 sq ft
- International Squarescore 56
Office · 1,233,833 sq ft
- Ross Hall Groupscore —
College/University · 1,047,627 sq ft
- Columbia Plaza All Bldgsscore 30
Multifamily Housing · 942,990 sq ft
- Northwestern Buildingscore 90
Office · 732,964 sq ft
See also: most efficient in Washington, DC · biggest emitters
How does 311WC - WASFB - Courtyard Washington, DC/Foggy Bottom compare with other hotel buildings in Washington, DC?
The latest disclosures cover 257 hotel buildings in Washington, DC, out of 6,870 buildings citywide. 311WC - WASFB - Courtyard Washington, DC/Foggy Bottom's ENERGY STAR score of 45 compares with an average of 58 across the 251 that report a score; it scores higher than 29% of them and lower than 70%. Its site EUI of 89.3 kBtu/ft² is roughly in line with the average of 87.6 kBtu/ft². Its emissions intensity of 6.9 kgCO₂e/ft² is roughly in line with the group average of 6.9 kgCO₂e/ft².
At 101,074 sq ft, it is about 56% below the average floor area of 227,860 sq ft for those buildings. It was built in 2012, 38 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 311WC - WASFB - Courtyard Washington, DC/Foggy Bottom's energy performance changed over time?
BuildingCensus holds 10 Washington, DC disclosures for 311WC - WASFB - Courtyard Washington, DC/Foggy Bottom, covering report years 2015–2024. Its ENERGY STAR score went from 21 in 2015 to 45 in 2024 (+24 points); its best year on file was 2020, at 59. Site EUI moved from 122.3 kBtu/ft² (2015) to 89.3 kBtu/ft² (2024), a 27% decrease. Reported emissions went from 1,022 tCO₂e to 694 tCO₂e over the same span (down 32%).
What does an ENERGY STAR score of 45 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 45 means the building performs better than about 45% of its national peers. BuildingCensus bands the score into report-card grades; 45 falls in band D — lowest band (1–54). It sits 30 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. 311WC - WASFB - Courtyard Washington, DC/Foggy Bottom's 89.3 kBtu/ft² across 101,074 sq ft works out to about 9 billion Btu (2,645 MWh-equivalent) in 2024. Its source EUI of 201.0 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 1,815,410 kWh of electricity, 28,290 therms of natural gas and 3,931 thousand gallons of water for the year.
Which law requires 311WC - WASFB - Courtyard Washington, DC/Foggy Bottom to report its energy use?
311WC - WASFB - Courtyard Washington, DC/Foggy Bottom 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:PM4175578:2024). 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
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- Holiday Inn Express; Suites Washington DC - NoMA· 99,217 sq ft · score 94 (A)
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- Washington DC ACH· 98,072 sq ft · score 57 (C)
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- Hotel buildings in Washington, DC· 257 benchmarked
- All Washington, DC benchmarked buildings· Clean and Affordable Energy Act / BEPS
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Frequently asked questions
What is 311WC - WASFB - Courtyard Washington, DC/Foggy Bottom's energy grade?
311WC - WASFB - Courtyard Washington, DC/Foggy Bottom scores 45 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 311WC - WASFB - Courtyard Washington, DC/Foggy Bottom use?
Its 2024 site energy-use intensity was 89.3 kBtu/ft² (201.0 kBtu/ft² source) across 101,074 sq ft, including 1,815,410 kWh of electricity and 28,290 therms of natural gas.
What are 311WC - WASFB - Courtyard Washington, DC/Foggy Bottom's carbon emissions?
311WC - WASFB - Courtyard Washington, DC/Foggy Bottom reported 694 tCO₂e of greenhouse-gas emissions (6.9 kgCO₂e/ft²) for 2024.
Where is 311WC - WASFB - Courtyard Washington, DC/Foggy Bottom?
311WC - WASFB - Courtyard Washington, DC/Foggy Bottom is at 515 20th St NW, in Washington, DC 20006. Its coordinates are 38.89651, -77.04469 (latitude, longitude), as published in the Building Energy Benchmarking file.
How big is 311WC - WASFB - Courtyard Washington, DC/Foggy Bottom and when was it built?
311WC - WASFB - Courtyard Washington, DC/Foggy Bottom has 101,074 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 2012 as its year built. It is classed as hotel.
Is 311WC - WASFB - Courtyard Washington, DC/Foggy Bottom 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, “311WC - WASFB - Courtyard Washington, DC/Foggy Bottom, Washington, DC — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/washington-dc/311wc-wasfb-courtyard-washington-dc-foggy-bottom-529f3795 (data as of July 9, 2026).