Dupont East Condominium
Multifamily Housing in Washington, DC, DC · 1545 18th Street NW · 20036
At a glance
Dupont East Condominium is a 165,025-square-foot multifamily housing building at 1545 18th Street NW in Washington, DC, built in 1900. In its 2024 Washington, DC benchmarking disclosure it reported an ENERGY STAR score of 86 out of 100 (grade A), a site energy-use intensity of 54.0 kBtu/ft² and 587 tCO₂e of greenhouse-gas emissions. That score is higher than 61% of the 1,618 scored multifamily housing buildings in Washington, DC.
Clean and Affordable Energy Act / BEPS · reporting year 2024
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 86 (band A) |
| Site EUI | 54.0 kBtu/ft² |
| Source EUI | 91.5 kBtu/ft² |
| GHG emissions | 587 tCO₂e |
| GHG intensity | 3.6 kgCO₂e/ft² |
| Electricity | 964,101 kWh |
| Natural gas | 56,161 therms |
| Water use | 6,285 kgal |
| Gross floor area | 165,025 sq ft |
| Source record | dc:PM6735443:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 86 | -2 | 54.0 kBtu/ft² | 587 tCO₂e |
| 2023 | 88 | -2 | 49.8 kBtu/ft² | 544 tCO₂e |
| 2022 | 90 | +7 | 52.4 kBtu/ft² | 569 tCO₂e |
| 2021 | 83 | +2 | 53.3 kBtu/ft² | 622 tCO₂e |
| 2020 | 81 | -2 | 53.3 kBtu/ft² | 630 tCO₂e |
| 2019 | 83 | -1 | 55.6 kBtu/ft² | 654 tCO₂e |
| 2018 | 84 | 56.1 kBtu/ft² | 658 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
DUPONT EAST CONDO
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Location
- Address
- 1545 18th Street NW
- City
- Washington, DC
- State
- District of Columbia
- ZIP
- 20036
- Coordinates
- 38.91091, -77.04110
Within ~1 km
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See also: most efficient in Washington, DC · biggest emitters
How does Dupont East 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. Dupont East Condominium's ENERGY STAR score of 86 compares with an average of 72 across the 1,618 that report a score; it scores higher than 61% of them and lower than 37%. Its site EUI of 54.0 kBtu/ft² is roughly in line with the average of 51.1 kBtu/ft². Its emissions intensity of 3.6 kgCO₂e/ft² is roughly in line with the group average of 3.8 kgCO₂e/ft².
At 165,025 sq ft, it is about 21% above the average floor area of 136,346 sq ft for those buildings. It was built in 1900, 65 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 Dupont East Condominium's energy performance changed over time?
BuildingCensus holds 7 Washington, DC disclosures for Dupont East Condominium, covering report years 2018–2024. Its ENERGY STAR score went from 84 in 2018 to 86 in 2024 (+2 points); its best year on file was 2022, at 90. Site EUI moved from 56.1 kBtu/ft² (2018) to 54.0 kBtu/ft² (2024), a 4% decrease. Reported emissions went from 658 tCO₂e to 587 tCO₂e over the same span (down 11%).
What does an ENERGY STAR score of 86 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 86 means the building performs better than about 86% of its national peers. BuildingCensus bands the score into report-card grades; 86 falls in band A — high performer (85–100). 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. Dupont East Condominium's 54.0 kBtu/ft² across 165,025 sq ft works out to about 8.9 billion Btu (2,612 MWh-equivalent) in 2024. Its source EUI of 91.5 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 964,101 kWh of electricity, 56,161 therms of natural gas and 6,285 thousand gallons of water for the year.
Which law requires Dupont East Condominium to report its energy use?
Dupont East 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 2024 disclosure (source record dc:PM6735443:2024). 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.
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Frequently asked questions
What is Dupont East Condominium's energy grade?
Dupont East Condominium scores 86 out of 100 on ENERGY STAR — band A, high performer (85–100) — in its 2024 Washington, DC disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does Dupont East Condominium use?
Its 2024 site energy-use intensity was 54.0 kBtu/ft² (91.5 kBtu/ft² source) across 165,025 sq ft, including 964,101 kWh of electricity and 56,161 therms of natural gas.
What are Dupont East Condominium's carbon emissions?
Dupont East Condominium reported 587 tCO₂e of greenhouse-gas emissions (3.6 kgCO₂e/ft²) for 2024.
Where is Dupont East Condominium?
Dupont East Condominium is at 1545 18th Street NW, in Washington, DC 20036. Its coordinates are 38.91091, -77.04110 (latitude, longitude), as published in the Building Energy Benchmarking file.
How big is Dupont East Condominium and when was it built?
Dupont East Condominium has 165,025 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1900 as its year built. It is classed as multifamily housing.
Is Dupont East Condominium 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, “Dupont East Condominium, Washington, DC — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/washington-dc/dupont-east-condominium-ff947715 (data as of July 9, 2026).