1625 K Street: 1625 K Street Northwest
Office in Washington, DC, DC · 1625 K Street Northwest · 20006
At a glance
1625 K Street: 1625 K Street Northwest is a 125,632-square-foot office building in Washington, DC, built in 1941. In its 2024 Washington, DC benchmarking disclosure it reported an ENERGY STAR score of 92 out of 100 (grade A), a site energy-use intensity of 29.9 kBtu/ft² and 330 tCO₂e of greenhouse-gas emissions. That score is higher than 93% 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 | 92 (band A) |
| Site EUI | 29.9 kBtu/ft² |
| Source EUI | 83.8 kBtu/ft² |
| GHG emissions | 330 tCO₂e |
| GHG intensity | 2.6 kgCO₂e/ft² |
| Electricity | 1,101,756 kWh |
| Natural gas | 0 therms |
| Water use | 913 kgal |
| Gross floor area | 125,632 sq ft |
| Source record | dc:PM9960919:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 92 | +2 | 29.9 kBtu/ft² | 330 tCO₂e |
| 2023 | 90 | -2 | 31.9 kBtu/ft² | 360 tCO₂e |
| 2022 | 92 | -2 | 30.4 kBtu/ft² | 333 tCO₂e |
| 2021 | 94 | +1 | 28.6 kBtu/ft² | 334 tCO₂e |
| 2020 | 93 | +11 | 28.6 kBtu/ft² | 343 tCO₂e |
| 2019 | 82 | 42.6 kBtu/ft² | 473 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
ZG 1625 K STREET LLC
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Location
- Address
- 1625 K Street Northwest
- City
- Washington, DC
- State
- District of Columbia
- ZIP
- 20006
- Coordinates
- 38.90292, -77.03741
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
- Lafayette Centrescore 74
Office · 908,482 sq ft
- 1300 Buildingscore 95
Bank/Financial Institution · 803,167 sq ft
- NGS Headquartersscore 68
Office · 746,237 sq ft
See also: most efficient in Washington, DC · biggest emitters
How does 1625 K Street: 1625 K Street Northwest compare with other office buildings in Washington, DC?
The latest disclosures cover 899 office buildings in Washington, DC, out of 6,870 buildings citywide. 1625 K Street: 1625 K Street Northwest's ENERGY STAR score of 92 compares with an average of 70 across the 774 that report a score; it scores higher than 93% of them and lower than 6%. Its site EUI of 29.9 kBtu/ft² is about half of 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 2.6 kgCO₂e/ft² is about half of the group average of 5.0 kgCO₂e/ft².
At 125,632 sq ft, it is about 42% below the average floor area of 216,135 sq ft for those buildings. It was built in 1941, 33 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 1625 K Street: 1625 K Street Northwest's energy performance changed over time?
BuildingCensus holds 6 Washington, DC disclosures for 1625 K Street: 1625 K Street Northwest, covering report years 2019–2024. Its ENERGY STAR score went from 82 in 2019 to 92 in 2024 (+10 points); its best year on file was 2021, at 94. Site EUI moved from 42.6 kBtu/ft² (2019) to 29.9 kBtu/ft² (2024), a 30% decrease. Reported emissions went from 473 tCO₂e to 330 tCO₂e over the same span (down 30%).
What does an ENERGY STAR score of 92 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 92 means the building performs better than about 92% of its national peers. BuildingCensus bands the score into report-card grades; 92 falls in band A — high performer (85–100). 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. 1625 K Street: 1625 K Street Northwest's 29.9 kBtu/ft² across 125,632 sq ft works out to about 3.8 billion Btu (1,101 MWh-equivalent) in 2024. Its source EUI of 83.8 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 1,101,756 kWh of electricity, 0 therms of natural gas and 913 thousand gallons of water for the year.
Which law requires 1625 K Street: 1625 K Street Northwest to report its energy use?
1625 K Street: 1625 K Street Northwest 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:PM9960919:2024). 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
- MQMF 1313 L STREET, LLC· 125,191 sq ft · score 67 (C)
- 1620 Eye, LLC· 123,885 sq ft · score 79 (B)
- 122 C Street: 122 C Street Northwest· 123,209 sq ft · score 81 (B)
- 3600 NY Properties LLC· 123,000 sq ft · score 62 (C)
- 1020 19th Street: 1020 19th Street Northwest· 122,865 sq ft · EUI 36.5 kBtu/ft²
- 1900 L Street: 1900 L Street Northwest· 122,148 sq ft · score 81 (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 1625 K Street: 1625 K Street Northwest's energy grade?
1625 K Street: 1625 K Street Northwest scores 92 out of 100 on ENERGY STAR — band A, high performer (85–100) — in its 2024 Washington, DC disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does 1625 K Street: 1625 K Street Northwest use?
Its 2024 site energy-use intensity was 29.9 kBtu/ft² (83.8 kBtu/ft² source) across 125,632 sq ft, including 1,101,756 kWh of electricity and 0 therms of natural gas.
What are 1625 K Street: 1625 K Street Northwest's carbon emissions?
1625 K Street: 1625 K Street Northwest reported 330 tCO₂e of greenhouse-gas emissions (2.6 kgCO₂e/ft²) for 2024.
Where is 1625 K Street: 1625 K Street Northwest?
1625 K Street: 1625 K Street Northwest is in Washington, DC 20006. Its coordinates are 38.90292, -77.03741 (latitude, longitude), as published in the Building Energy Benchmarking file.
How big is 1625 K Street: 1625 K Street Northwest and when was it built?
1625 K Street: 1625 K Street Northwest has 125,632 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1941 as its year built. It is classed as office.
Is 1625 K Street: 1625 K Street Northwest 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, “1625 K Street: 1625 K Street Northwest, Washington, DC — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/washington-dc/1625-k-street-1625-k-street-northwest-1d375ae9 (data as of July 9, 2026).