Plaza West Apartments: Plaza West Apartments
Multifamily Housing in Washington, DC, DC · 307 K Street Northwest · 20001
At a glance
Plaza West Apartments: Plaza West Apartments is a 267,233-square-foot multifamily housing building at 307 K Street Northwest in Washington, DC, built in 2017. In its 2024 Washington, DC benchmarking disclosure it reported an ENERGY STAR score of 74 out of 100 (grade B), a site energy-use intensity of 36.1 kBtu/ft² and 827 tCO₂e of greenhouse-gas emissions. That score is higher than 42% 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 | 74 (band B) |
| Site EUI | 36.1 kBtu/ft² |
| Source EUI | 97.5 kBtu/ft² |
| GHG emissions | 827 tCO₂e |
| GHG intensity | 3.1 kgCO₂e/ft² |
| Electricity | 2,666,409 kWh |
| Natural gas | 5,418 therms |
| Water use | 14,866 kgal |
| Gross floor area | 267,233 sq ft |
| Source record | dc:PM15100816:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 74 | +6 | 36.1 kBtu/ft² | 827 tCO₂e |
| 2023 | 68 | -4 | 38.4 kBtu/ft² | 849 tCO₂e |
| 2022 | 72 | -7 | 40.7 kBtu/ft² | 890 tCO₂e |
| 2021 | 79 | +1 | 34.4 kBtu/ft² | — |
| 2020 | 78 | 34.7 kBtu/ft² | — |
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
PLAZA WEST LLC
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Location
- Address
- 307 K Street Northwest
- City
- Washington, DC
- State
- District of Columbia
- ZIP
- 20001
- Coordinates
- 38.90358, -77.01574
Within ~1 km
Nearby benchmarked buildings
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- Georgetown Lawscore —
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- Westin Washington DC Downtownscore 72
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- 9671p-Washington DC Renaissancescore 55
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See also: most efficient in Washington, DC · biggest emitters
How does Plaza West Apartments: Plaza West Apartments 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. Plaza West Apartments: Plaza West Apartments's ENERGY STAR score of 74 compares with an average of 72 across the 1,618 that report a score; it scores higher than 42% of them and lower than 56%. Its site EUI of 36.1 kBtu/ft² is about 29% 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 3.1 kgCO₂e/ft² is about 18% below the group average of 3.8 kgCO₂e/ft².
At 267,233 sq ft, it is about twice the average floor area of 136,346 sq ft for those buildings. It was built in 2017, 52 years later 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 Plaza West Apartments: Plaza West Apartments's energy performance changed over time?
BuildingCensus holds 5 Washington, DC disclosures for Plaza West Apartments: Plaza West Apartments, covering report years 2020–2024. Its ENERGY STAR score went from 78 in 2020 to 74 in 2024 (-4 points); its best year on file was 2021, at 79. Site EUI moved from 34.7 kBtu/ft² (2020) to 36.1 kBtu/ft² (2024), an 4% increase. Reported emissions went from 890 tCO₂e to 827 tCO₂e over the same span (down 7%).
What does an ENERGY STAR score of 74 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 74 means the building performs better than about 74% of its national peers. BuildingCensus bands the score into report-card grades; 74 falls in band B — above median (70–84). It sits 1 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. Plaza West Apartments: Plaza West Apartments's 36.1 kBtu/ft² across 267,233 sq ft works out to about 9.6 billion Btu (2,827 MWh-equivalent) in 2024. Its source EUI of 97.5 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 2,666,409 kWh of electricity, 5,418 therms of natural gas and 14,866 thousand gallons of water for the year.
Which law requires Plaza West Apartments: Plaza West Apartments to report its energy use?
Plaza West Apartments: Plaza West Apartments 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:PM15100816:2024). 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 Plaza West Apartments: Plaza West Apartments's energy grade?
Plaza West Apartments: Plaza West Apartments scores 74 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 Plaza West Apartments: Plaza West Apartments use?
Its 2024 site energy-use intensity was 36.1 kBtu/ft² (97.5 kBtu/ft² source) across 267,233 sq ft, including 2,666,409 kWh of electricity and 5,418 therms of natural gas.
What are Plaza West Apartments: Plaza West Apartments's carbon emissions?
Plaza West Apartments: Plaza West Apartments reported 827 tCO₂e of greenhouse-gas emissions (3.1 kgCO₂e/ft²) for 2024.
Where is Plaza West Apartments: Plaza West Apartments?
Plaza West Apartments: Plaza West Apartments is at 307 K Street Northwest, in Washington, DC 20001. Its coordinates are 38.90358, -77.01574 (latitude, longitude), as published in the Building Energy Benchmarking file.
How big is Plaza West Apartments: Plaza West Apartments and when was it built?
Plaza West Apartments: Plaza West Apartments has 267,233 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 2017 as its year built. It is classed as multifamily housing.
Is Plaza West Apartments: Plaza West Apartments 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, “Plaza West Apartments: Plaza West Apartments, Washington, DC — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/washington-dc/plaza-west-apartments-plaza-west-apartments-409cc828 (data as of July 9, 2026).