The Warner Building
Office in Washington, DC, DC · 1299 Pennsylvania Avenue NW · 20004
At a glance
The Warner Building is a 672,013-square-foot office building at 1299 Pennsylvania Avenue NW in Washington, DC, built in 1991. In its 2024 Washington, DC benchmarking disclosure it reported an ENERGY STAR score of 76 out of 100 (grade B), a site energy-use intensity of 43.1 kBtu/ft² and 2,538 tCO₂e of greenhouse-gas emissions. That score is higher than 50% 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 | 76 (band B) |
| Site EUI | 43.1 kBtu/ft² |
| Source EUI | 120.4 kBtu/ft² |
| GHG emissions | 2,538 tCO₂e |
| GHG intensity | 3.8 kgCO₂e/ft² |
| Electricity | 8,456,630 kWh |
| Natural gas | 1,105 therms |
| Water use | 5,981 kgal |
| Gross floor area | 672,013 sq ft |
| Source record | dc:PM1407276:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 76 | -2 | 43.1 kBtu/ft² | 2,538 tCO₂e |
| 2023 | 78 | +7 | 38.9 kBtu/ft² | 2,329 tCO₂e |
| 2022 | 71 | -14 | 40.6 kBtu/ft² | 2,450 tCO₂e |
| 2021 | 85 | +7 | 30.3 kBtu/ft² | 2,109 tCO₂e |
| 2020 | 78 | +7 | 37.0 kBtu/ft² | 2,319 tCO₂e |
| 2019 | 71 | -5 | 50.5 kBtu/ft² | 3,522 tCO₂e |
| 2018 | 76 | -10 | 45.0 kBtu/ft² | 3,517 tCO₂e |
| 2017 | 86 | +3 | 50.4 kBtu/ft² | 4,302 tCO₂e |
| 2016 | 83 | -2 | 52.2 kBtu/ft² | 4,611 tCO₂e |
| 2015 | 85 | +7 | 47.1 kBtu/ft² | 4,848 tCO₂e |
| 2014 | 78 | -2 | 53.8 kBtu/ft² | 5,561 tCO₂e |
| 2013 | 80 | +5 | 50.1 kBtu/ft² | 4,899 tCO₂e |
| 2012 | 75 | 48.1 kBtu/ft² | 4,894 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
SPUS8 WARNER LP
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Location
- Address
- 1299 Pennsylvania Avenue NW
- City
- Washington, DC
- State
- District of Columbia
- ZIP
- 20004
- Coordinates
- 38.89649, -77.02935
Within ~1 km
Nearby benchmarked buildings
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- 616 E St.score —
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Multifamily Housing · 1,075,449 sq ft
- Midtown Centerscore 91
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Office · 887,915 sq ft
See also: most efficient in Washington, DC · biggest emitters
How does The Warner Building compare with other office buildings in Washington, DC?
The latest disclosures cover 899 office buildings in Washington, DC, out of 6,870 buildings citywide. The Warner Building's ENERGY STAR score of 76 compares with an average of 70 across the 774 that report a score; it scores higher than 50% of them and lower than 47%. Its site EUI of 43.1 kBtu/ft² is about 22% 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 24% below the group average of 5.0 kgCO₂e/ft².
At 672,013 sq ft, it is about 211% above the average floor area of 216,135 sq ft for those buildings. It was built in 1991, 17 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 The Warner Building's energy performance changed over time?
BuildingCensus holds 13 Washington, DC disclosures for The Warner Building, covering report years 2012–2024. Its ENERGY STAR score went from 75 in 2012 to 76 in 2024 (+1 points); its best year on file was 2017, at 86. Site EUI moved from 48.1 kBtu/ft² (2012) to 43.1 kBtu/ft² (2024), a 10% decrease. Reported emissions went from 4,894 tCO₂e to 2,538 tCO₂e over the same span (down 48%).
What does an ENERGY STAR score of 76 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 76 means the building performs better than about 76% of its national peers. BuildingCensus bands the score into report-card grades; 76 falls in band B — above median (70–84). Scores of 75 or higher meet the threshold for ENERGY STAR certification; certification itself is a separate, verified application that the disclosure does not record. 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. The Warner Building's 43.1 kBtu/ft² across 672,013 sq ft works out to about 29 billion Btu (8,488 MWh-equivalent) in 2024. Its source EUI of 120.4 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 8,456,630 kWh of electricity, 1,105 therms of natural gas and 5,981 thousand gallons of water for the year.
Which law requires The Warner Building to report its energy use?
The Warner Building 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:PM1407276:2024). 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
- Hall of the States· 661,116 sq ft · score 71 (B)
- 655 New York· 651,827 sq ft · score 82 (B)
- International Finance Corporation· 638,558 sq ft · score 94 (A)
- Two Independence Square· 634,947 sq ft · score 99 (A)
- CCDC Office & Retail· 624,086 sq ft · score 73 (B)
- Two Constitution Square· 623,532 sq ft · score 80 (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 The Warner Building's energy grade?
The Warner Building scores 76 out of 100 on ENERGY STAR — band B, above median (70–84) — in its 2024 Washington, DC disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does The Warner Building use?
Its 2024 site energy-use intensity was 43.1 kBtu/ft² (120.4 kBtu/ft² source) across 672,013 sq ft, including 8,456,630 kWh of electricity and 1,105 therms of natural gas.
What are The Warner Building's carbon emissions?
The Warner Building reported 2,538 tCO₂e of greenhouse-gas emissions (3.8 kgCO₂e/ft²) for 2024.
Where is The Warner Building?
The Warner Building is at 1299 Pennsylvania Avenue NW, in Washington, DC 20004. Its coordinates are 38.89649, -77.02935 (latitude, longitude), as published in the Building Energy Benchmarking file.
How big is The Warner Building and when was it built?
The Warner Building has 672,013 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1991 as its year built. It is classed as office.
Is The Warner Building 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, “The Warner Building, Washington, DC — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/washington-dc/the-warner-building-8836909b (data as of July 9, 2026).