1900 K Street
Office in Washington, DC, DC · 1900 K Street NW · 20006
At a glance
1900 K Street is a 379,324-square-foot office building at 1900 K Street NW in Washington, DC, built in 1995. 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 42.5 kBtu/ft² and 1,416 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 | 42.5 kBtu/ft² |
| Source EUI | 119.0 kBtu/ft² |
| GHG emissions | 1,416 tCO₂e |
| GHG intensity | 3.7 kgCO₂e/ft² |
| Electricity | 4,724,727 kWh |
| Natural gas | 0 therms |
| Water use | 3,648 kgal |
| Gross floor area | 379,324 sq ft |
| Source record | dc:PM1335301:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 77 | -1 | 42.5 kBtu/ft² | 1,416 tCO₂e |
| 2023 | 78 | -5 | 43.0 kBtu/ft² | 1,465 tCO₂e |
| 2022 | 83 | -1 | 41.8 kBtu/ft² | 1,381 tCO₂e |
| 2021 | 84 | +3 | 40.5 kBtu/ft² | 1,426 tCO₂e |
| 2020 | 81 | +2 | 41.8 kBtu/ft² | 1,516 tCO₂e |
| 2019 | 79 | +2 | 53.2 kBtu/ft² | 1,932 tCO₂e |
| 2018 | 77 | -8 | 55.5 kBtu/ft² | 2,016 tCO₂e |
| 2017 | 85 | 55.9 kBtu/ft² | 2,353 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
TEACHERS INSURANCE AND ANNUITY ASSOCIATION OF AMERICA
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Location
- Address
- 1900 K Street NW
- City
- Washington, DC
- State
- District of Columbia
- ZIP
- 20006
- Coordinates
- 38.90207, -77.04391
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
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- Ross Hall Groupscore —
College/University · 1,047,627 sq ft
- Columbia Plaza All Bldgsscore 30
Multifamily Housing · 942,990 sq ft
- Lafayette Centrescore 74
Office · 908,482 sq ft
See also: most efficient in Washington, DC · biggest emitters
How does 1900 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. 1900 K Street'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 42.5 kBtu/ft² is about 24% 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 3.7 kgCO₂e/ft² is about 25% below the group average of 5.0 kgCO₂e/ft².
At 379,324 sq ft, it is about 76% above the average floor area of 216,135 sq ft for those buildings. It was built in 1995, 21 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 1900 K Street's energy performance changed over time?
BuildingCensus holds 8 Washington, DC disclosures for 1900 K Street, covering report years 2017–2024. Its ENERGY STAR score went from 85 in 2017 to 77 in 2024 (-8 points); its best year on file was 2017, at 85. Site EUI moved from 55.9 kBtu/ft² (2017) to 42.5 kBtu/ft² (2024), a 24% decrease. Reported emissions went from 2,353 tCO₂e to 1,416 tCO₂e over the same span (down 40%).
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. 1900 K Street's 42.5 kBtu/ft² across 379,324 sq ft works out to about 16.1 billion Btu (4,725 MWh-equivalent) in 2024. Its source EUI of 119.0 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 4,724,727 kWh of electricity, 0 therms of natural gas and 3,648 thousand gallons of water for the year.
Which law requires 1900 K Street to report its energy use?
1900 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:PM1335301:2024). 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
- 64 New York Avenue· 379,148 sq ft · score 81 (B)
- 1333 New Hampshire Ave NW· 379,079 sq ft · score 87 (A)
- One Independence Square· 378,045 sq ft · score 95 (A)
- 0900 Seventh Street NW (IBEW)· 376,998 sq ft · score 73 (B)
- 425 EYE· 376,559 sq ft · score 97 (A)
- Three Constitution Square· 374,361 sq ft · score 77 (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 1900 K Street's energy grade?
1900 K Street 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 1900 K Street use?
Its 2024 site energy-use intensity was 42.5 kBtu/ft² (119.0 kBtu/ft² source) across 379,324 sq ft, including 4,724,727 kWh of electricity and 0 therms of natural gas.
What are 1900 K Street's carbon emissions?
1900 K Street reported 1,416 tCO₂e of greenhouse-gas emissions (3.7 kgCO₂e/ft²) for 2024.
Where is 1900 K Street?
1900 K Street is at 1900 K Street NW, in Washington, DC 20006. Its coordinates are 38.90207, -77.04391 (latitude, longitude), as published in the Building Energy Benchmarking file.
How big is 1900 K Street and when was it built?
1900 K Street has 379,324 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1995 as its year built. It is classed as office.
Is 1900 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, “1900 K Street, Washington, DC — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/washington-dc/1900-k-street-81fe4bb8 (data as of July 9, 2026).