1400 K Street
Office in Washington, DC, DC · 1400 K Street, NW · 20005
At a glance
1400 K Street is a 199,626-square-foot office building at 1400 K Street, NW in Washington, DC, built in 1982. In its 2024 Washington, DC benchmarking disclosure it reported an ENERGY STAR score of 69 out of 100 (grade C), a site energy-use intensity of 48.4 kBtu/ft² and 848 tCO₂e of greenhouse-gas emissions. That score is higher than 34% 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 | 69 (band C) |
| Site EUI | 48.4 kBtu/ft² |
| Source EUI | 133.0 kBtu/ft² |
| GHG emissions | 848 tCO₂e |
| GHG intensity | 4.3 kgCO₂e/ft² |
| Electricity | 2,748,859 kWh |
| Natural gas | 0 therms |
| Water use | 1,249 kgal |
| Gross floor area | 199,626 sq ft |
| Source record | dc:PM1071004:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 69 | -2 | 48.4 kBtu/ft² | 848 tCO₂e |
| 2023 | 71 | -3 | 45.2 kBtu/ft² | 823 tCO₂e |
| 2022 | 74 | -7 | 48.7 kBtu/ft² | 861 tCO₂e |
| 2021 | 81 | -6 | 41.8 kBtu/ft² | 787 tCO₂e |
| 2020 | 87 | +2 | 38.4 kBtu/ft² | 781 tCO₂e |
| 2019 | 85 | ±0 | 48.5 kBtu/ft² | 982 tCO₂e |
| 2018 | 85 | -8 | 48.6 kBtu/ft² | 976 tCO₂e |
| 2017 | 93 | +1 | 48.6 kBtu/ft² | 1,128 tCO₂e |
| 2016 | 92 | +3 | 46.5 kBtu/ft² | 1,135 tCO₂e |
| 2015 | 89 | +2 | 49.4 kBtu/ft² | 1,369 tCO₂e |
| 2014 | 87 | -2 | 51.9 kBtu/ft² | 1,440 tCO₂e |
| 2013 | 89 | +3 | 51.0 kBtu/ft² | 1,336 tCO₂e |
| 2012 | 86 | 53.4 kBtu/ft² | 1,291 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
TRIZECHAHN LLC - 1400 K STREET NW
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Location
- Address
- 1400 K Street, NW
- City
- Washington, DC
- State
- District of Columbia
- ZIP
- 20005
- Coordinates
- 38.90217, -77.03241
Within ~1 km
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See also: most efficient in Washington, DC · biggest emitters
How does 1400 K 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. 1400 K Street's ENERGY STAR score of 69 compares with an average of 70 across the 774 that report a score; it scores higher than 34% of them and lower than 64%. Its site EUI of 48.4 kBtu/ft² is about 13% 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 4.3 kgCO₂e/ft² is about 15% below the group average of 5.0 kgCO₂e/ft².
At 199,626 sq ft, it is roughly in line with the average floor area of 216,135 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 15,264 office buildings average an ENERGY STAR score of 73 and a site EUI of 59.3 kBtu/ft².
How has 1400 K Street's energy performance changed over time?
BuildingCensus holds 13 Washington, DC disclosures for 1400 K Street, covering report years 2012–2024. Its ENERGY STAR score went from 86 in 2012 to 69 in 2024 (-17 points); its best year on file was 2017, at 93. Site EUI moved from 53.4 kBtu/ft² (2012) to 48.4 kBtu/ft² (2024), a 9% decrease. Reported emissions went from 1,291 tCO₂e to 848 tCO₂e over the same span (down 34%).
What does an ENERGY STAR score of 69 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 69 means the building performs better than about 69% of its national peers. BuildingCensus bands the score into report-card grades; 69 falls in band C — below median (55–69). It sits 6 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. 1400 K Street's 48.4 kBtu/ft² across 199,626 sq ft works out to about 9.7 billion Btu (2,832 MWh-equivalent) in 2024. Its source EUI of 133.0 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 2,748,859 kWh of electricity, 0 therms of natural gas and 1,249 thousand gallons of water for the year.
Which law requires 1400 K Street to report its energy use?
1400 K 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:PM1071004:2024). 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
- 250 M St· 199,050 sq ft · score 63 (C)
- 1775 Eye Street (ys10)· 198,893 sq ft · score 83 (B)
- 1015 15th Street/Blackrock· 198,868 sq ft · score 72 (B)
- Jemal's Takoma Park, LLC· 198,799 sq ft · score 74 (B)
- The CoStar Group Building· 198,452 sq ft · score 71 (B)
- The Southern Building· 198,331 sq ft · score 73 (B)
- 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 1400 K Street's energy grade?
1400 K Street scores 69 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 1400 K Street use?
Its 2024 site energy-use intensity was 48.4 kBtu/ft² (133.0 kBtu/ft² source) across 199,626 sq ft, including 2,748,859 kWh of electricity and 0 therms of natural gas.
What are 1400 K Street's carbon emissions?
1400 K Street reported 848 tCO₂e of greenhouse-gas emissions (4.3 kgCO₂e/ft²) for 2024.
Where is 1400 K Street?
1400 K Street is at 1400 K Street, NW, in Washington, DC 20005. Its coordinates are 38.90217, -77.03241 (latitude, longitude), as published in the Building Energy Benchmarking file.
How big is 1400 K Street and when was it built?
1400 K Street has 199,626 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1982 as its year built. It is classed as office.
Is 1400 K 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, “1400 K Street, Washington, DC — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/washington-dc/1400-k-street-36839c6d (data as of July 9, 2026).