1899 Pennsylvania Avenue
Office in Washington, DC, DC · 1899 Pennsylvania ave. N.W. · 20006
At a glance
1899 Pennsylvania Avenue is a 205,933-square-foot office building at 1899 Pennsylvania ave. N.W. in Washington, DC, built in 1925. 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 41.5 kBtu/ft² and 750 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 | 41.5 kBtu/ft² |
| Source EUI | 116.2 kBtu/ft² |
| GHG emissions | 750 tCO₂e |
| GHG intensity | 3.6 kgCO₂e/ft² |
| Electricity | 2,503,971 kWh |
| Natural gas | 0 therms |
| Water use | 1,795 kgal |
| Gross floor area | 205,933 sq ft |
| Source record | dc:PM2451324:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 64 | +1 | 41.5 kBtu/ft² | 750 tCO₂e |
| 2023 | 63 | +25 | 41.8 kBtu/ft² | 774 tCO₂e |
| 2022 | 38 | -13 | 72.3 kBtu/ft² | 1,289 tCO₂e |
| 2021 | 51 | -12 | 63.3 kBtu/ft² | 1,128 tCO₂e |
| 2020 | 63 | +5 | 57.1 kBtu/ft² | 1,007 tCO₂e |
| 2019 | 58 | -1 | 71.7 kBtu/ft² | 1,330 tCO₂e |
| 2018 | 59 | -19 | 70.2 kBtu/ft² | 1,333 tCO₂e |
| 2017 | 78 | +6 | 72.2 kBtu/ft² | 1,593 tCO₂e |
| 2016 | 72 | -10 | 71.6 kBtu/ft² | 1,647 tCO₂e |
| 2015 | 82 | -6 | 59.8 kBtu/ft² | 1,589 tCO₂e |
| 2014 | 88 | +5 | 48.1 kBtu/ft² | 1,274 tCO₂e |
| 2013 | 83 | +3 | 56.6 kBtu/ft² | 1,437 tCO₂e |
| 2012 | 80 | 62.7 kBtu/ft² | 1,785 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
1899 PENN PROPERTY LLC
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Location
- Address
- 1899 Pennsylvania ave. N.W.
- City
- Washington, DC
- State
- District of Columbia
- ZIP
- 20006
- Coordinates
- 38.90051, -77.04301
Within ~1 km
Nearby benchmarked buildings
- 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
Mixed Use Property · 844,878 sq ft
See also: most efficient in Washington, DC · biggest emitters
How does 1899 Pennsylvania Avenue compare with other office buildings in Washington, DC?
The latest disclosures cover 899 office buildings in Washington, DC, out of 6,870 buildings citywide. 1899 Pennsylvania Avenue'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 41.5 kBtu/ft² is about 25% 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 3.6 kgCO₂e/ft² is about 27% below the group average of 5.0 kgCO₂e/ft².
At 205,933 sq ft, it is roughly in line with the average floor area of 216,135 sq ft for those buildings. It was built in 1925, 49 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 1899 Pennsylvania Avenue's energy performance changed over time?
BuildingCensus holds 13 Washington, DC disclosures for 1899 Pennsylvania Avenue, covering report years 2012–2024. Its ENERGY STAR score went from 80 in 2012 to 64 in 2024 (-16 points); its best year on file was 2014, at 88. Site EUI moved from 62.7 kBtu/ft² (2012) to 41.5 kBtu/ft² (2024), a 34% decrease. Reported emissions went from 1,785 tCO₂e to 750 tCO₂e over the same span (down 58%).
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. 1899 Pennsylvania Avenue's 41.5 kBtu/ft² across 205,933 sq ft works out to about 8.5 billion Btu (2,505 MWh-equivalent) in 2024. Its source EUI of 116.2 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 2,503,971 kWh of electricity, 0 therms of natural gas and 1,795 thousand gallons of water for the year.
Which law requires 1899 Pennsylvania Avenue to report its energy use?
1899 Pennsylvania Avenue 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:PM2451324:2024). 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
- 51 Louisiana Ave. NW· 205,580 sq ft · score 70 (B)
- 429 L'Enfant Plaza (L'Enfant Plaza Retail)· 203,729 sq ft · EUI 38.0 kBtu/ft²
- 499 S Capitol Street SW - Washington· 203,031 sq ft · score 56 (C)
- 1201 M Street· 202,273 sq ft · score 95 (A)
- 1445 New York· 200,913 sq ft · score 90 (A)
- US Chamber of Commerce· 200,891 sq ft · score 82 (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 1899 Pennsylvania Avenue's energy grade?
1899 Pennsylvania Avenue 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 1899 Pennsylvania Avenue use?
Its 2024 site energy-use intensity was 41.5 kBtu/ft² (116.2 kBtu/ft² source) across 205,933 sq ft, including 2,503,971 kWh of electricity and 0 therms of natural gas.
What are 1899 Pennsylvania Avenue's carbon emissions?
1899 Pennsylvania Avenue reported 750 tCO₂e of greenhouse-gas emissions (3.6 kgCO₂e/ft²) for 2024.
Where is 1899 Pennsylvania Avenue?
1899 Pennsylvania Avenue is at 1899 Pennsylvania ave. N.W., in Washington, DC 20006. Its coordinates are 38.90051, -77.04301 (latitude, longitude), as published in the Building Energy Benchmarking file.
How big is 1899 Pennsylvania Avenue and when was it built?
1899 Pennsylvania Avenue has 205,933 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1925 as its year built. It is classed as office.
Is 1899 Pennsylvania Avenue 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, “1899 Pennsylvania Avenue, Washington, DC — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/washington-dc/1899-pennsylvania-avenue-856d6fb6 (data as of July 9, 2026).