1156 Fifteenth, LLC
Office in Washington, DC, DC · 1156 15th St, NW · 20005
At a glance
1156 Fifteenth, LLC is a 177,404-square-foot office building at 1156 15th St, NW in Washington, DC, built in 1968. In its 2024 Washington, DC benchmarking disclosure it reported an ENERGY STAR score of 77 out of 100 (grade B), a site energy-use intensity of 56.4 kBtu/ft² and 811 tCO₂e of greenhouse-gas emissions. That score is higher than 53% 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 | 77 (band B) |
| Site EUI | 56.4 kBtu/ft² |
| Source EUI | 111.5 kBtu/ft² |
| GHG emissions | 811 tCO₂e |
| GHG intensity | 4.6 kgCO₂e/ft² |
| Electricity | 1,585,291 kWh |
| Natural gas | 1,845 therms |
| Gross floor area | 177,404 sq ft |
| Source record | dc:PM1497374:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 77 | +12 | 56.4 kBtu/ft² | 811 tCO₂e |
| 2023 | 65 | -13 | 59.6 kBtu/ft² | 883 tCO₂e |
| 2022 | 78 | +2 | 60.6 kBtu/ft² | 866 tCO₂e |
| 2021 | 76 | -6 | 54.2 kBtu/ft² | 807 tCO₂e |
| 2020 | 82 | +5 | 50.1 kBtu/ft² | 759 tCO₂e |
| 2019 | 77 | +5 | 67.4 kBtu/ft² | 1,025 tCO₂e |
| 2018 | 72 | -15 | 72.8 kBtu/ft² | 1,108 tCO₂e |
| 2017 | 87 | +1 | 63.8 kBtu/ft² | 1,122 tCO₂e |
| 2016 | 86 | +3 | 63.8 kBtu/ft² | 1,167 tCO₂e |
| 2015 | 83 | +2 | 74.7 kBtu/ft² | 1,454 tCO₂e |
| 2014 | 81 | 78.1 kBtu/ft² | 1,506 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
1156 FIFTEENTH LLC
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Location
- Address
- 1156 15th St, NW
- City
- Washington, DC
- State
- District of Columbia
- ZIP
- 20005
- Coordinates
- 38.90534, -77.03479
Within ~1 km
Nearby benchmarked buildings
- Main Complexscore 59
Office · 1,872,507 sq ft
- International Squarescore 56
Office · 1,233,833 sq ft
- Midtown Centerscore 91
Office · 911,093 sq ft
- 1300 Buildingscore 95
Bank/Financial Institution · 803,167 sq ft
- NGS Headquartersscore 68
Office · 746,237 sq ft
- Northwestern Buildingscore 90
Office · 732,964 sq ft
See also: most efficient in Washington, DC · biggest emitters
How does 1156 Fifteenth, LLC compare with other office buildings in Washington, DC?
The latest disclosures cover 899 office buildings in Washington, DC, out of 6,870 buildings citywide. 1156 Fifteenth, LLC's ENERGY STAR score of 77 compares with an average of 70 across the 774 that report a score; it scores higher than 53% of them and lower than 44%. Its site EUI of 56.4 kBtu/ft² is roughly in line with the average of 55.6 kBtu/ft². Its emissions intensity of 4.6 kgCO₂e/ft² is roughly in line with the group average of 5.0 kgCO₂e/ft².
At 177,404 sq ft, it is about 18% below the average floor area of 216,135 sq ft for those buildings. It was built in 1968, 6 years earlier 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 1156 Fifteenth, LLC's energy performance changed over time?
BuildingCensus holds 11 Washington, DC disclosures for 1156 Fifteenth, LLC, covering report years 2014–2024. Its ENERGY STAR score went from 81 in 2014 to 77 in 2024 (-4 points); its best year on file was 2017, at 87. Site EUI moved from 78.1 kBtu/ft² (2014) to 56.4 kBtu/ft² (2024), a 28% decrease. Reported emissions went from 1,506 tCO₂e to 811 tCO₂e over the same span (down 46%).
What does an ENERGY STAR score of 77 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 77 means the building performs better than about 77% of its national peers. BuildingCensus bands the score into report-card grades; 77 falls in band B — above median (70–84). 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. 1156 Fifteenth, LLC's 56.4 kBtu/ft² across 177,404 sq ft works out to about 10 billion Btu (2,932 MWh-equivalent) in 2024. Its source EUI of 111.5 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 1,585,291 kWh of electricity and 1,845 therms of natural gas for the year.
Which law requires 1156 Fifteenth, LLC to report its energy use?
1156 Fifteenth, LLC 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:PM1497374:2024). 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
- 1775 Penn Ave· 176,979 sq ft · score 52 (D)
- 1250 Conn Ave· 176,882 sq ft · score 78 (B)
- 1400 Eye Street· 175,760 sq ft · score 62 (C)
- 1400 Eye Street NW: 1400 I Street Northwest· 175,759 sq ft · score 66 (C)
- 1050 17th St· 175,681 sq ft · score 91 (A)
- Sirius XM· 174,150 sq ft · score 4 (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 1156 Fifteenth, LLC's energy grade?
1156 Fifteenth, LLC scores 77 out of 100 on ENERGY STAR — band B, above median (70–84) — in its 2024 Washington, DC disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does 1156 Fifteenth, LLC use?
Its 2024 site energy-use intensity was 56.4 kBtu/ft² (111.5 kBtu/ft² source) across 177,404 sq ft, including 1,585,291 kWh of electricity and 1,845 therms of natural gas.
What are 1156 Fifteenth, LLC's carbon emissions?
1156 Fifteenth, LLC reported 811 tCO₂e of greenhouse-gas emissions (4.6 kgCO₂e/ft²) for 2024.
Where is 1156 Fifteenth, LLC?
1156 Fifteenth, LLC is at 1156 15th St, NW, in Washington, DC 20005. Its coordinates are 38.90534, -77.03479 (latitude, longitude), as published in the Building Energy Benchmarking file.
How big is 1156 Fifteenth, LLC and when was it built?
1156 Fifteenth, LLC has 177,404 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1968 as its year built. It is classed as office.
Is 1156 Fifteenth, LLC 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, “1156 Fifteenth, LLC, Washington, DC — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/washington-dc/1156-fifteenth-llc-4c76b905 (data as of July 9, 2026).