Jefferson House Condominium
Multifamily Housing in Washington, DC, DC · 922 24th St NW
At a glance
Jefferson House Condominium is a 88,255-square-foot multifamily housing building at 922 24th St NW in Washington, DC, built in 1962. In its 2016 Washington, DC benchmarking disclosure it reported an ENERGY STAR score of 47 out of 100 (grade D), a site energy-use intensity of 83.8 kBtu/ft² and 580 tCO₂e of greenhouse-gas emissions. That score is higher than 17% of the 1,618 scored multifamily housing buildings in Washington, DC.
Clean and Affordable Energy Act / BEPS · reporting year 2016
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 47 (band D) |
| Site EUI | 83.8 kBtu/ft² |
| Source EUI | 159.8 kBtu/ft² |
| GHG emissions | 580 tCO₂e |
| GHG intensity | 6.6 kgCO₂e/ft² |
| Electricity | 888,738 kWh |
| Natural gas | 43,662 therms |
| Water use | 4,569 kgal |
| Gross floor area | 88,255 sq ft |
| Source record | dc:PM3994900:2016 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2016latest | 47 | -5 | 83.8 kBtu/ft² | 580 tCO₂e |
| 2015 | 52 | +21 | 82.3 kBtu/ft² | 620 tCO₂e |
| 2014 | 31 | 97.6 kBtu/ft² | 708 tCO₂e | |
| 2013 | — | 40.5 kBtu/ft² | 435 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
JEFFERSON HOUSE CONDO
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Location
- Address
- 922 24th St NW
- City
- Washington, DC
- State
- District of Columbia
- Coordinates
- 38.90152, -77.05176
Within ~1 km
Nearby benchmarked buildings
- BEPS1 - Foggy Bottom Campusscore —
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- Ross Hall Groupscore —
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- Columbia Plaza All Bldgsscore 30
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- Lafayette Centrescore 74
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Mixed Use Property · 844,878 sq ft
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See also: most efficient in Washington, DC · biggest emitters
How does Jefferson House Condominium compare with other multifamily housing buildings in Washington, DC?
The latest disclosures cover 1,799 multifamily housing buildings in Washington, DC, out of 6,870 buildings citywide. Jefferson House Condominium's ENERGY STAR score of 47 compares with an average of 72 across the 1,618 that report a score; it scores higher than 17% of them and lower than 83%. Its site EUI of 83.8 kBtu/ft² is about 64% above the average of 51.1 kBtu/ft² — it uses more energy per square foot than the typical building in that group. Its emissions intensity of 6.6 kgCO₂e/ft² is about 74% above the group average of 3.8 kgCO₂e/ft².
At 88,255 sq ft, it is about 35% below the average floor area of 136,346 sq ft for those buildings. It was built in 1962, 3 years earlier than the group's average year built (1965). Across all 24 jurisdictions BuildingCensus covers, the 59,945 multifamily housing buildings average an ENERGY STAR score of 70 and a site EUI of 59.0 kBtu/ft².
How has Jefferson House Condominium's energy performance changed over time?
BuildingCensus holds 4 Washington, DC disclosures for Jefferson House Condominium, covering report years 2013–2016. Its ENERGY STAR score went from 31 in 2014 to 47 in 2016 (+16 points); its best year on file was 2015, at 52. Site EUI moved from 40.5 kBtu/ft² (2013) to 83.8 kBtu/ft² (2016), an 107% increase. Reported emissions went from 435 tCO₂e to 580 tCO₂e over the same span (up 33%).
What does an ENERGY STAR score of 47 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 47 means the building performs better than about 47% of its national peers. BuildingCensus bands the score into report-card grades; 47 falls in band D — lowest band (1–54). It sits 28 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 House Condominium's 83.8 kBtu/ft² across 88,255 sq ft works out to about 7.4 billion Btu (2,167 MWh-equivalent) in 2016. Its source EUI of 159.8 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 888,738 kWh of electricity, 43,662 therms of natural gas and 4,569 thousand gallons of water for the year.
Which law requires Jefferson House Condominium to report its energy use?
Jefferson House Condominium 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 2016 disclosure (source record dc:PM3994900:2016). 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 multifamily housing buildings in Washington, DC
- Ponce de Leon Co-Op· 88,189 sq ft · score 84 (B)
- Entwine I and II· 88,140 sq ft · score 77 (B)
- Washington View Assoc2· 88,082 sq ft · score 39 (D)
- The Envoy· 87,955 sq ft · EUI 52.3 kBtu/ft²
- The Envoy· 87,955 sq ft · EUI 42.3 kBtu/ft²
- Mendota Apartments· 87,737 sq ft · score 99 (A)
- Multifamily Housing buildings in Washington, DC· 1,799 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 House Condominium's energy grade?
Jefferson House Condominium scores 47 out of 100 on ENERGY STAR — band D, lowest band (1–54) — in its 2016 Washington, DC disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does Jefferson House Condominium use?
Its 2016 site energy-use intensity was 83.8 kBtu/ft² (159.8 kBtu/ft² source) across 88,255 sq ft, including 888,738 kWh of electricity and 43,662 therms of natural gas.
What are Jefferson House Condominium's carbon emissions?
Jefferson House Condominium reported 580 tCO₂e of greenhouse-gas emissions (6.6 kgCO₂e/ft²) for 2016.
Where is Jefferson House Condominium?
Jefferson House Condominium is at 922 24th St NW, in Washington, DC. Its coordinates are 38.90152, -77.05176 (latitude, longitude), as published in the Building Energy Benchmarking file.
How big is Jefferson House Condominium and when was it built?
Jefferson House Condominium has 88,255 sq ft of gross floor area, as reported in its 2016 disclosure. The disclosure lists 1962 as its year built. It is classed as multifamily housing.
Is Jefferson House Condominium covered by the Clean and Affordable Energy Act / BEPS?
Yes — it appears in the 2016 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 House Condominium, Washington, DC — 2016 benchmarking disclosure”, https://buildingcensus.com/buildings/washington-dc/jefferson-house-condominium-925e8e89 (data as of July 9, 2026).