OSM - 3333 K Street NW
Office in Washington, DC, DC · 3333 K Street, NW · 20007
At a glance
OSM - 3333 K Street NW is a 68,884-square-foot office building at 3333 K Street, NW in Washington, DC, built in 1989. In its 2024 Washington, DC benchmarking disclosure it reported an ENERGY STAR score of 64 out of 100 (grade C), a site energy-use intensity of 47.3 kBtu/ft² and 260 tCO₂e of greenhouse-gas emissions. That score is higher than 27% 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 | 64 (band C) |
| Site EUI | 47.3 kBtu/ft² |
| Source EUI | 132.5 kBtu/ft² |
| GHG emissions | 260 tCO₂e |
| GHG intensity | 3.8 kgCO₂e/ft² |
| Electricity | 955,630 kWh |
| Natural gas | 0 therms |
| Water use | 281 kgal |
| Gross floor area | 68,884 sq ft |
| Source record | dc:PM4000444:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 64 | +1 | 47.3 kBtu/ft² | 260 tCO₂e |
| 2023 | 63 | +8 | 47.8 kBtu/ft² | 296 tCO₂e |
| 2022 | 55 | -1 | 54.6 kBtu/ft² | 328 tCO₂e |
| 2021 | 56 | +10 | 52.0 kBtu/ft² | 333 tCO₂e |
| 2020 | 46 | +6 | 63.2 kBtu/ft² | 417 tCO₂e |
| 2019 | 40 | +19 | 83.4 kBtu/ft² | 550 tCO₂e |
| 2018 | 21 | -3 | 91.8 kBtu/ft² | 605 tCO₂e |
| 2017 | 24 | -1 | 93.4 kBtu/ft² | 714 tCO₂e |
| 2016 | 25 | -4 | 94.1 kBtu/ft² | 743 tCO₂e |
| 2015 | 29 | +4 | 89.9 kBtu/ft² | 829 tCO₂e |
| 2014 | 25 | +4 | 93.7 kBtu/ft² | 864 tCO₂e |
| 2013 | 21 | 97.9 kBtu/ft² | 854 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
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Location
- Address
- 3333 K Street, NW
- City
- Washington, DC
- State
- District of Columbia
- ZIP
- 20007
- Coordinates
- 38.90409, -77.06739
Within ~1 km
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See also: most efficient in Washington, DC · biggest emitters
How does OSM - 3333 K Street NW compare with other office buildings in Washington, DC?
The latest disclosures cover 899 office buildings in Washington, DC, out of 6,870 buildings citywide. OSM - 3333 K Street NW's ENERGY STAR score of 64 compares with an average of 70 across the 774 that report a score; it scores higher than 27% of them and lower than 72%. Its site EUI of 47.3 kBtu/ft² is about 15% 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 3.8 kgCO₂e/ft² is about 25% below the group average of 5.0 kgCO₂e/ft².
At 68,884 sq ft, it is about 68% below the average floor area of 216,135 sq ft for those buildings. It was built in 1989, 15 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 OSM - 3333 K Street NW's energy performance changed over time?
BuildingCensus holds 12 Washington, DC disclosures for OSM - 3333 K Street NW, covering report years 2013–2024. Its ENERGY STAR score went from 21 in 2013 to 64 in 2024 (+43 points). Site EUI moved from 97.9 kBtu/ft² (2013) to 47.3 kBtu/ft² (2024), a 52% decrease. Reported emissions went from 854 tCO₂e to 260 tCO₂e over the same span (down 70%).
What does an ENERGY STAR score of 64 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 64 means the building performs better than about 64% of its national peers. BuildingCensus bands the score into report-card grades; 64 falls in band C — below median (55–69). It sits 11 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. OSM - 3333 K Street NW's 47.3 kBtu/ft² across 68,884 sq ft works out to about 3.3 billion Btu (955 MWh-equivalent) in 2024. Its source EUI of 132.5 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 955,630 kWh of electricity, 0 therms of natural gas and 281 thousand gallons of water for the year.
Which law requires OSM - 3333 K Street NW to report its energy use?
OSM - 3333 K Street NW 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:PM4000444:2024). 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.
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Frequently asked questions
What is OSM - 3333 K Street NW's energy grade?
OSM - 3333 K Street NW scores 64 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 OSM - 3333 K Street NW use?
Its 2024 site energy-use intensity was 47.3 kBtu/ft² (132.5 kBtu/ft² source) across 68,884 sq ft, including 955,630 kWh of electricity and 0 therms of natural gas.
What are OSM - 3333 K Street NW's carbon emissions?
OSM - 3333 K Street NW reported 260 tCO₂e of greenhouse-gas emissions (3.8 kgCO₂e/ft²) for 2024.
Where is OSM - 3333 K Street NW?
OSM - 3333 K Street NW is at 3333 K Street, NW, in Washington, DC 20007. Its coordinates are 38.90409, -77.06739 (latitude, longitude), as published in the Building Energy Benchmarking file.
How big is OSM - 3333 K Street NW and when was it built?
OSM - 3333 K Street NW has 68,884 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1989 as its year built. It is classed as office.
Is OSM - 3333 K Street NW 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, “OSM - 3333 K Street NW, Washington, DC — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/washington-dc/osm-3333-k-street-nw-798c91cf (data as of July 9, 2026).