16 Cobalt, LLC
Office in Washington, DC, DC · 1627 K Street, NW · 20006
At a glance
16 Cobalt, LLC is a 63,510-square-foot office building at 1627 K Street, NW in Washington, DC, built in 1977.
Clean and Affordable Energy Act / BEPS · reporting year 2024
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | — |
| Site EUI | — |
| Source EUI | — |
| GHG emissions | — |
| GHG intensity | — |
| Electricity | 0 kWh |
| Natural gas | 0 therms |
| Water use | 1,390 kgal |
| Gross floor area | 63,510 sq ft |
| Source record | dc:PM3989890:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | — | — | — | |
| 2019 | 45 | -55 | 71.8 kBtu/ft² | 426 tCO₂e |
| 2018 | 100 | +44 | 15.3 kBtu/ft² | 85 tCO₂e |
| 2017 | 56 | +16 | 71.7 kBtu/ft² | 505 tCO₂e |
| 2016 | 40 | -11 | 87.0 kBtu/ft² | 634 tCO₂e |
| 2013 | 51 | 82.8 kBtu/ft² | 720 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
16 COBALT LLC
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Location
- Address
- 1627 K Street, NW
- City
- Washington, DC
- State
- District of Columbia
- ZIP
- 20006
- Coordinates
- 38.90291, -77.03767
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 16 Cobalt, 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.
At 63,510 sq ft, it is about 71% below the average floor area of 216,135 sq ft for those buildings. Its 1977 construction date is close to 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 16 Cobalt, LLC's energy performance changed over time?
BuildingCensus holds 6 Washington, DC disclosures for 16 Cobalt, LLC, covering report years 2013, 2016, 2017, 2018, 2019, 2024. Its ENERGY STAR score went from 51 in 2013 to 45 in 2019 (-6 points); its best year on file was 2018, at 100. Site EUI moved from 82.8 kBtu/ft² (2013) to 71.8 kBtu/ft² (2019), a 13% decrease. Reported emissions went from 720 tCO₂e to 426 tCO₂e over the same span (down 41%).
Which law requires 16 Cobalt, LLC to report its energy use?
16 Cobalt, 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:PM3989890:2024). 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
- Tellurium· 62,789 sq ft · score 45 (D)
- Chromium· 62,672 sq ft · score 16 (D)
- 1602 L St NW· 62,476 sq ft · score 49 (D)
- American Public Health Association· 62,466 sq ft · score 84 (B)
- 1301 Connecticut Ave· 62,257 sq ft · score 30 (D)
- Community Three Grimke· 62,003 sq ft · score 87 (A)
- 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 16 Cobalt, LLC's energy grade?
16 Cobalt, LLC did not report an ENERGY STAR score in its 2024 disclosure.
How much energy does 16 Cobalt, LLC use?
No energy-use intensity was reported for 2024.
What are 16 Cobalt, LLC's carbon emissions?
No greenhouse-gas emissions figure was reported for 2024.
Where is 16 Cobalt, LLC?
16 Cobalt, LLC is at 1627 K Street, NW, in Washington, DC 20006. Its coordinates are 38.90291, -77.03767 (latitude, longitude), as published in the Building Energy Benchmarking file.
How big is 16 Cobalt, LLC and when was it built?
16 Cobalt, LLC has 63,510 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1977 as its year built. It is classed as office.
Is 16 Cobalt, 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, “16 Cobalt, LLC, Washington, DC — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/washington-dc/16-cobalt-llc-e226bd41 (data as of July 9, 2026).