2099 Penn Ave
Office in Washington, DC, DC · 2099 Pennsylvania Ave. NW · 20006
At a glance
2099 Penn Ave is a 231,164-square-foot office building at 2099 Pennsylvania Ave. NW in Washington, DC, built in 2000. In its 2024 Washington, DC benchmarking disclosure it reported an ENERGY STAR score of 52 out of 100 (grade D), a site energy-use intensity of 60.3 kBtu/ft² and 1,223 tCO₂e of greenhouse-gas emissions. That score is higher than 17% 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 | 52 (band D) |
| Site EUI | 60.3 kBtu/ft² |
| Source EUI | 168.8 kBtu/ft² |
| GHG emissions | 1,223 tCO₂e |
| GHG intensity | 5.3 kgCO₂e/ft² |
| Electricity | 4,084,139 kWh |
| Natural gas | 0 therms |
| Water use | 2,903 kgal |
| Gross floor area | 231,164 sq ft |
| Source record | dc:PM1423599:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 52 | -1 | 60.3 kBtu/ft² | 1,223 tCO₂e |
| 2023 | 53 | +9 | 59.1 kBtu/ft² | 1,227 tCO₂e |
| 2022 | 44 | -9 | 68.2 kBtu/ft² | 1,374 tCO₂e |
| 2021 | 53 | -4 | 59.9 kBtu/ft² | 1,286 tCO₂e |
| 2020 | 57 | +5 | 56.2 kBtu/ft² | 1,244 tCO₂e |
| 2019 | 52 | +4 | 62.6 kBtu/ft² | 1,386 tCO₂e |
| 2018 | 48 | -26 | 65.4 kBtu/ft² | 1,447 tCO₂e |
| 2017 | 74 | -4 | 57.5 kBtu/ft² | 1,476 tCO₂e |
| 2016 | 78 | -8 | 55.1 kBtu/ft² | 1,462 tCO₂e |
| 2015 | 86 | 49.0 kBtu/ft² | 1,515 tCO₂e | |
| 2014 | — | 39.0 kBtu/ft² | 1,298 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
FSP 2099 PENN LLC
Own or manage this building? Claim it to correct the record and get compliance alerts.
Location
- Address
- 2099 Pennsylvania Ave. NW
- City
- Washington, DC
- State
- District of Columbia
- ZIP
- 20006
- Coordinates
- 38.90164, -77.04629
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
Office · 1,233,833 sq ft
- 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 2099 Penn Ave compare with other office buildings in Washington, DC?
The latest disclosures cover 899 office buildings in Washington, DC, out of 6,870 buildings citywide. 2099 Penn Ave's ENERGY STAR score of 52 compares with an average of 70 across the 774 that report a score; it scores higher than 17% of them and lower than 82%. Its site EUI of 60.3 kBtu/ft² is roughly in line with the average of 55.6 kBtu/ft². Its emissions intensity of 5.3 kgCO₂e/ft² is roughly in line with the group average of 5.0 kgCO₂e/ft².
At 231,164 sq ft, it is roughly in line with the average floor area of 216,135 sq ft for those buildings. It was built in 2000, 26 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 2099 Penn Ave's energy performance changed over time?
BuildingCensus holds 11 Washington, DC disclosures for 2099 Penn Ave, covering report years 2014–2024. Its ENERGY STAR score went from 86 in 2015 to 52 in 2024 (-34 points); its best year on file was 2015, at 86. Site EUI moved from 39.0 kBtu/ft² (2014) to 60.3 kBtu/ft² (2024), an 55% increase. Reported emissions went from 1,298 tCO₂e to 1,223 tCO₂e over the same span (down 6%).
What does an ENERGY STAR score of 52 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 52 means the building performs better than about 52% of its national peers. BuildingCensus bands the score into report-card grades; 52 falls in band D — lowest band (1–54). It sits 23 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. 2099 Penn Ave's 60.3 kBtu/ft² across 231,164 sq ft works out to about 13.9 billion Btu (4,085 MWh-equivalent) in 2024. Its source EUI of 168.8 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 4,084,139 kWh of electricity, 0 therms of natural gas and 2,903 thousand gallons of water for the year.
Which law requires 2099 Penn Ave to report its energy use?
2099 Penn Ave 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:PM1423599:2024). 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
- Sumner Square· 228,520 sq ft · score 78 (B)
- 500 L'Enfant Plaza· 228,468 sq ft · score 88 (A)
- 3900 Wisconsin Ave NW· 228,271 sq ft
- Department of Employment Services· 228,025 sq ft · score 71 (B)
- 1401 New York Avenue - WASHINGTON - US0021· 227,686 sq ft · score 81 (B)
- 1310 G Street· 227,165 sq ft · score 85 (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 2099 Penn Ave's energy grade?
2099 Penn Ave scores 52 out of 100 on ENERGY STAR — band D, lowest band (1–54) — in its 2024 Washington, DC disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does 2099 Penn Ave use?
Its 2024 site energy-use intensity was 60.3 kBtu/ft² (168.8 kBtu/ft² source) across 231,164 sq ft, including 4,084,139 kWh of electricity and 0 therms of natural gas.
What are 2099 Penn Ave's carbon emissions?
2099 Penn Ave reported 1,223 tCO₂e of greenhouse-gas emissions (5.3 kgCO₂e/ft²) for 2024.
Where is 2099 Penn Ave?
2099 Penn Ave is at 2099 Pennsylvania Ave. NW, in Washington, DC 20006. Its coordinates are 38.90164, -77.04629 (latitude, longitude), as published in the Building Energy Benchmarking file.
How big is 2099 Penn Ave and when was it built?
2099 Penn Ave has 231,164 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 2000 as its year built. It is classed as office.
Is 2099 Penn Ave 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.
Working with Washington, DC building benchmarking records? Pro adds alerts, change history and CSV export ($49/mo); Enterprise adds full national files, the API and an MCP server for AI tools.
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, “2099 Penn Ave, Washington, DC — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/washington-dc/2099-penn-ave-91d9f305 (data as of July 9, 2026).