Jefferson Building
Office in Washington, DC, DC · 1225 19th Street · 20036
At a glance
Jefferson Building is a 65,799-square-foot office building at 1225 19th Street in Washington, DC, built in 1963. In its 2018 Washington, DC benchmarking disclosure it reported an ENERGY STAR score of 62 out of 100 (grade C), a site energy-use intensity of 68.6 kBtu/ft² and 458 tCO₂e of greenhouse-gas emissions. That score is higher than 25% of the 774 scored office buildings in Washington, DC.
Clean and Affordable Energy Act / BEPS · reporting year 2018
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 62 (band C) |
| Site EUI | 68.6 kBtu/ft² |
| Source EUI | 192.2 kBtu/ft² |
| GHG emissions | 458 tCO₂e |
| GHG intensity | 7.0 kgCO₂e/ft² |
| Electricity | 1,323,514 kWh |
| Natural gas | 0 therms |
| Water use | 1,232 kgal |
| Gross floor area | 65,799 sq ft |
| Source record | dc:PM1878428:2018 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2018latest | 62 | -8 | 68.6 kBtu/ft² | 458 tCO₂e |
| 2016 | 70 | +4 | 71.3 kBtu/ft² | 538 tCO₂e |
| 2015 | 66 | +8 | 75.1 kBtu/ft² | 661 tCO₂e |
| 2013 | 58 | 77.7 kBtu/ft² | 648 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
MCP II JEFFERSON LLC
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Location
- Address
- 1225 19th Street
- City
- Washington, DC
- State
- District of Columbia
- ZIP
- 20036
- Coordinates
- 38.90665, -77.04307
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
- Lafayette Centrescore 74
Office · 908,482 sq ft
Mixed Use Property · 844,878 sq ft
- NGS Headquartersscore 68
Office · 746,237 sq ft
See also: most efficient in Washington, DC · biggest emitters
How does Jefferson 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. Jefferson Building's ENERGY STAR score of 62 compares with an average of 70 across the 774 that report a score; it scores higher than 25% of them and lower than 74%. Its site EUI of 68.6 kBtu/ft² is about 23% above the average of 55.6 kBtu/ft² — it uses more energy per square foot than the typical building in that group. Its emissions intensity of 7.0 kgCO₂e/ft² is about 40% above the group average of 5.0 kgCO₂e/ft².
At 65,799 sq ft, it is about 70% below the average floor area of 216,135 sq ft for those buildings. It was built in 1963, 11 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 Jefferson Building's energy performance changed over time?
BuildingCensus holds 4 Washington, DC disclosures for Jefferson Building, covering report years 2013, 2015, 2016, 2018. Its ENERGY STAR score went from 58 in 2013 to 62 in 2018 (+4 points); its best year on file was 2016, at 70. Site EUI moved from 77.7 kBtu/ft² (2013) to 68.6 kBtu/ft² (2018), a 12% decrease. Reported emissions went from 648 tCO₂e to 458 tCO₂e over the same span (down 29%).
What does an ENERGY STAR score of 62 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 62 means the building performs better than about 62% of its national peers. BuildingCensus bands the score into report-card grades; 62 falls in band C — below median (55–69). It sits 13 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. Jefferson Building's 68.6 kBtu/ft² across 65,799 sq ft works out to about 4.5 billion Btu (1,323 MWh-equivalent) in 2018. Its source EUI of 192.2 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 1,323,514 kWh of electricity, 0 therms of natural gas and 1,232 thousand gallons of water for the year.
Which law requires Jefferson Building to report its energy use?
Jefferson 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 2018 disclosure (source record dc:PM1878428:2018). 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
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- 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 Jefferson Building's energy grade?
Jefferson Building scores 62 out of 100 on ENERGY STAR — band C, below median (55–69) — in its 2018 Washington, DC disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does Jefferson Building use?
Its 2018 site energy-use intensity was 68.6 kBtu/ft² (192.2 kBtu/ft² source) across 65,799 sq ft, including 1,323,514 kWh of electricity and 0 therms of natural gas.
What are Jefferson Building's carbon emissions?
Jefferson Building reported 458 tCO₂e of greenhouse-gas emissions (7.0 kgCO₂e/ft²) for 2018.
Where is Jefferson Building?
Jefferson Building is at 1225 19th Street, in Washington, DC 20036. Its coordinates are 38.90665, -77.04307 (latitude, longitude), as published in the Building Energy Benchmarking file.
How big is Jefferson Building and when was it built?
Jefferson Building has 65,799 sq ft of gross floor area, as reported in its 2018 disclosure. The disclosure lists 1963 as its year built. It is classed as office.
Is Jefferson Building covered by the Clean and Affordable Energy Act / BEPS?
Yes — it appears in the 2018 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, “Jefferson Building, Washington, DC — 2018 benchmarking disclosure”, https://buildingcensus.com/buildings/washington-dc/jefferson-building-b2589af6 (data as of July 9, 2026).