4427 Hayes Street
Multifamily Housing in Washington, DC, DC · 4427 Hayes Street, NE · 20019
At a glance
4427 Hayes Street is a 28,772-square-foot multifamily housing building at 4427 Hayes Street, NE in Washington, DC, built in 1947. In its 2024 Washington, DC benchmarking disclosure it reported an ENERGY STAR score of 51 out of 100 (grade D), a site energy-use intensity of 40.5 kBtu/ft² and 102 tCO₂e of greenhouse-gas emissions. That score is higher than 19% 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 | 51 (band D) |
| Site EUI | 40.5 kBtu/ft² |
| Source EUI | 113.4 kBtu/ft² |
| GHG emissions | 102 tCO₂e |
| GHG intensity | 3.5 kgCO₂e/ft² |
| Electricity | 341,390 kWh |
| Natural gas | 0 therms |
| Water use | 1,220 kgal |
| Gross floor area | 28,772 sq ft |
| Source record | dc:PM19445593:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 51 | -42 | 40.5 kBtu/ft² | 102 tCO₂e |
| 2023 | 93 | +43 | 26.3 kBtu/ft² | 68 tCO₂e |
| 2022 | 50 | 41.8 kBtu/ft² | 105 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
BLUE SKYE DEVELOPMENT LLC
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Location
- Address
- 4427 Hayes Street, NE
- City
- Washington, DC
- State
- District of Columbia
- ZIP
- 20019
- Coordinates
- 38.89953, -76.93780
Within ~1 km
Nearby benchmarked buildings
- Lincoln Heightsscore 93
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- Lotus Squarescore 67
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- Conway Center: Conway Centerscore 100
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- Boundary Stone Flatsscore 62
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K-12 School · 181,541 sq ft
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See also: most efficient in Washington, DC · biggest emitters
How does 4427 Hayes Street 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. 4427 Hayes Street's ENERGY STAR score of 51 compares with an average of 72 across the 1,618 that report a score; it scores higher than 19% of them and lower than 80%. Its site EUI of 40.5 kBtu/ft² is about 21% below the average of 51.1 kBtu/ft² — it uses less energy per square foot than the typical building in that group. Its emissions intensity of 3.5 kgCO₂e/ft² is roughly in line with the group average of 3.8 kgCO₂e/ft².
At 28,772 sq ft, it is about 79% below the average floor area of 136,346 sq ft for those buildings. It was built in 1947, 18 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 4427 Hayes Street's energy performance changed over time?
BuildingCensus holds 3 Washington, DC disclosures for 4427 Hayes Street, covering report years 2022–2024. Its ENERGY STAR score went from 50 in 2022 to 51 in 2024 (+1 points); its best year on file was 2023, at 93. Site EUI moved from 41.8 kBtu/ft² (2022) to 40.5 kBtu/ft² (2024), a 3% decrease. Reported emissions went from 105 tCO₂e to 102 tCO₂e over the same span (down 2%).
What does an ENERGY STAR score of 51 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 51 means the building performs better than about 51% of its national peers. BuildingCensus bands the score into report-card grades; 51 falls in band D — lowest band (1–54). It sits 24 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. 4427 Hayes Street's 40.5 kBtu/ft² across 28,772 sq ft works out to about 1.2 billion Btu (342 MWh-equivalent) in 2024. Its source EUI of 113.4 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 341,390 kWh of electricity, 0 therms of natural gas and 1,220 thousand gallons of water for the year.
Which law requires 4427 Hayes Street to report its energy use?
4427 Hayes Street 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:PM19445593:2024). 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 multifamily housing buildings in Washington, DC
- Valencia· 28,752 sq ft · score 83 (B)
- The Cooperative at 1477· 28,678 sq ft · score 94 (A)
- OXFORD· 28,660 sq ft · score 72 (B)
- 1830 R Street· 28,653 sq ft · score 75 (B)
- Independence Place: Independence Place· 28,537 sq ft · score 54 (D)
- 2500 Massachusetts Ave Cooperative· 28,527 sq ft · EUI 44.9 kBtu/ft²
- 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 4427 Hayes Street's energy grade?
4427 Hayes Street scores 51 out of 100 on ENERGY STAR — band D, lowest band (1–54) — in its 2024 Washington, DC disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does 4427 Hayes Street use?
Its 2024 site energy-use intensity was 40.5 kBtu/ft² (113.4 kBtu/ft² source) across 28,772 sq ft, including 341,390 kWh of electricity and 0 therms of natural gas.
What are 4427 Hayes Street's carbon emissions?
4427 Hayes Street reported 102 tCO₂e of greenhouse-gas emissions (3.5 kgCO₂e/ft²) for 2024.
Where is 4427 Hayes Street?
4427 Hayes Street is at 4427 Hayes Street, NE, in Washington, DC 20019. Its coordinates are 38.89953, -76.93780 (latitude, longitude), as published in the Building Energy Benchmarking file.
How big is 4427 Hayes Street and when was it built?
4427 Hayes Street has 28,772 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1947 as its year built. It is classed as multifamily housing.
Is 4427 Hayes Street 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, “4427 Hayes Street, Washington, DC — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/washington-dc/4427-hayes-street-2a719732 (data as of July 9, 2026).