1720 I Street NW
Office in Washington, DC, DC · 20006
At a glance
1720 I Street NW is a 72,439-square-foot office building in Washington, DC, built in 1967. In its 2024 Washington, DC benchmarking disclosure it reported a site energy-use intensity of 45.5 kBtu/ft² and 268 tCO₂e of greenhouse-gas emissions.
Clean and Affordable Energy Act / BEPS · reporting year 2024
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | — |
| Site EUI | 45.5 kBtu/ft² |
| Source EUI | 112.8 kBtu/ft² |
| GHG emissions | 268 tCO₂e |
| GHG intensity | 3.7 kgCO₂e/ft² |
| Electricity | 788,330 kWh |
| Natural gas | 6,088 therms |
| Water use | 664 kgal |
| Gross floor area | 72,439 sq ft |
| Source record | dc:PM4014135:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | — | 45.5 kBtu/ft² | 268 tCO₂e | |
| 2023 | — | 46.6 kBtu/ft² | 268 tCO₂e | |
| 2022 | 63 | 34.8 kBtu/ft² | 219 tCO₂e | |
| 2021 | — | 16.5 kBtu/ft² | 70 tCO₂e | |
| 2020 | 62 | -14 | 44.8 kBtu/ft² | 254 tCO₂e |
| 2019 | 76 | -6 | 52.3 kBtu/ft² | 309 tCO₂e |
| 2018 | 82 | +1 | 37.4 kBtu/ft² | 259 tCO₂e |
| 2017 | 81 | +12 | 54.8 kBtu/ft² | 394 tCO₂e |
| 2016 | 69 | +4 | 66.8 kBtu/ft² | 491 tCO₂e |
| 2015 | 65 | +5 | 71.8 kBtu/ft² | 600 tCO₂e |
| 2014 | 60 | +4 | 77.4 kBtu/ft² | 631 tCO₂e |
| 2013 | 56 | 84.2 kBtu/ft² | 610 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
BDS III DC 1720 EYE STREET LLC
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Location
- Address
- 1720 I Street NW
- City
- Washington, DC
- State
- District of Columbia
- ZIP
- 20006
- Coordinates
- 38.90103, -77.04047
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
- NGS Headquartersscore 68
Office · 746,237 sq ft
- Northwestern Buildingscore 90
Office · 732,964 sq ft
See also: most efficient in Washington, DC · biggest emitters
How does 1720 I 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. Its site EUI of 45.5 kBtu/ft² is about 18% 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 26% below the group average of 5.0 kgCO₂e/ft².
At 72,439 sq ft, it is about 66% below the average floor area of 216,135 sq ft for those buildings. It was built in 1967, 7 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 1720 I Street NW's energy performance changed over time?
BuildingCensus holds 12 Washington, DC disclosures for 1720 I Street NW, covering report years 2013–2024. Its ENERGY STAR score went from 56 in 2013 to 63 in 2022 (+7 points); its best year on file was 2018, at 82. Site EUI moved from 84.2 kBtu/ft² (2013) to 45.5 kBtu/ft² (2024), a 46% decrease. Reported emissions went from 610 tCO₂e to 268 tCO₂e over the same span (down 56%).
What does a site EUI of 45.5 kBtu/ft² mean?
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. 1720 I Street NW's 45.5 kBtu/ft² across 72,439 sq ft works out to about 3.3 billion Btu (966 MWh-equivalent) in 2024. Its source EUI of 112.8 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 788,330 kWh of electricity, 6,088 therms of natural gas and 664 thousand gallons of water for the year.
Which law requires 1720 I Street NW to report its energy use?
1720 I 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:PM4014135:2024). 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
- Anacostia Service Center· 72,000 sq ft · score 100 (A)
- 1701 K Street: 1701 K Street Northwest· 71,985 sq ft · score 80 (B)
- Rice Hall· 71,543 sq ft · score 45 (D)
- 1634 I Street: 1634 I Street Northwest· 71,466 sq ft · score 76 (B)
- 2000 Florida Avenue, NW· 71,380 sq ft · score 71 (B)
- 1126 16th Street NW· 70,975 sq ft · score 74 (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 1720 I Street NW's energy grade?
1720 I Street NW did not report an ENERGY STAR score in its 2024 disclosure, but its site energy-use intensity was 45.5 kBtu/ft².
How much energy does 1720 I Street NW use?
Its 2024 site energy-use intensity was 45.5 kBtu/ft² (112.8 kBtu/ft² source) across 72,439 sq ft, including 788,330 kWh of electricity and 6,088 therms of natural gas.
What are 1720 I Street NW's carbon emissions?
1720 I Street NW reported 268 tCO₂e of greenhouse-gas emissions (3.7 kgCO₂e/ft²) for 2024.
Where is 1720 I Street NW?
1720 I Street NW is in Washington, DC 20006. Its coordinates are 38.90103, -77.04047 (latitude, longitude), as published in the Building Energy Benchmarking file.
How big is 1720 I Street NW and when was it built?
1720 I Street NW has 72,439 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1967 as its year built. It is classed as office.
Is 1720 I 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, “1720 I Street NW, Washington, DC — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/washington-dc/1720-i-street-nw-ca33bdde (data as of July 9, 2026).