River Hill Apts 2946 2nd Street
Multifamily Housing in Washington, DC, DC · 2946 2nd Street SE · 20032
At a glance
River Hill Apts 2946 2nd Street is a 37,680-square-foot multifamily housing building at 2946 2nd Street SE in Washington, DC, built in 1943. In its 2024 Washington, DC benchmarking disclosure it reported an ENERGY STAR score of 43 out of 100 (grade D), a site energy-use intensity of 36.1 kBtu/ft² and 119 tCO₂e of greenhouse-gas emissions. That score is higher than 14% 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 | 43 (band D) |
| Site EUI | 36.1 kBtu/ft² |
| Source EUI | 101.1 kBtu/ft² |
| GHG emissions | 119 tCO₂e |
| GHG intensity | 3.2 kgCO₂e/ft² |
| Electricity | 398,854 kWh |
| Natural gas | 0 therms |
| Water use | 2,614 kgal |
| Gross floor area | 37,680 sq ft |
| Source record | dc:PM20787595:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 43 | +5 | 36.1 kBtu/ft² | 119 tCO₂e |
| 2023 | 38 | +1 | 35.3 kBtu/ft² | 117 tCO₂e |
| 2022 | 37 | 38.7 kBtu/ft² | 128 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
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Location
- Address
- 2946 2nd Street SE
- City
- Washington, DC
- State
- District of Columbia
- ZIP
- 20032
- Coordinates
- 38.84642, -77.00508
Within ~1 km
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See also: most efficient in Washington, DC · biggest emitters
How does River Hill Apts 2946 2nd 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. River Hill Apts 2946 2nd Street's ENERGY STAR score of 43 compares with an average of 72 across the 1,618 that report a score; it scores higher than 14% of them and lower than 86%. 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 3.2 kgCO₂e/ft² is about 17% below the group average of 3.8 kgCO₂e/ft².
At 37,680 sq ft, it is about 72% below the average floor area of 136,346 sq ft for those buildings. It was built in 1943, 22 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 River Hill Apts 2946 2nd Street's energy performance changed over time?
BuildingCensus holds 3 Washington, DC disclosures for River Hill Apts 2946 2nd Street, covering report years 2022–2024. Its ENERGY STAR score went from 37 in 2022 to 43 in 2024 (+6 points). Site EUI moved from 38.7 kBtu/ft² (2022) to 36.1 kBtu/ft² (2024), a 7% decrease. Reported emissions went from 128 tCO₂e to 119 tCO₂e over the same span (down 7%).
What does an ENERGY STAR score of 43 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 43 means the building performs better than about 43% of its national peers. BuildingCensus bands the score into report-card grades; 43 falls in band D — lowest band (1–54). It sits 32 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. River Hill Apts 2946 2nd Street's 36.1 kBtu/ft² across 37,680 sq ft works out to about 1.4 billion Btu (399 MWh-equivalent) in 2024. Its source EUI of 101.1 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 398,854 kWh of electricity, 0 therms of natural gas and 2,614 thousand gallons of water for the year.
Which law requires River Hill Apts 2946 2nd Street to report its energy use?
River Hill Apts 2946 2nd 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:PM20787595:2024). 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
- The Montello Condo· 37,584 sq ft · score 97 (A)
- Shipley Park 8· 37,532 sq ft · score 53 (D)
- Dent Place· 37,522 sq ft · score 55 (C)
- Palisades· 37,438 sq ft · score 91 (A)
- Chillum Manor - 1· 37,350 sq ft · score 93 (A)
- Benning Road Apartments· 37,298 sq ft · score 90 (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
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- Biggest emitters in Washington, DC
Frequently asked questions
What is River Hill Apts 2946 2nd Street's energy grade?
River Hill Apts 2946 2nd Street scores 43 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 River Hill Apts 2946 2nd Street use?
Its 2024 site energy-use intensity was 36.1 kBtu/ft² (101.1 kBtu/ft² source) across 37,680 sq ft, including 398,854 kWh of electricity and 0 therms of natural gas.
What are River Hill Apts 2946 2nd Street's carbon emissions?
River Hill Apts 2946 2nd Street reported 119 tCO₂e of greenhouse-gas emissions (3.2 kgCO₂e/ft²) for 2024.
Where is River Hill Apts 2946 2nd Street?
River Hill Apts 2946 2nd Street is at 2946 2nd Street SE, in Washington, DC 20032. Its coordinates are 38.84642, -77.00508 (latitude, longitude), as published in the Building Energy Benchmarking file.
How big is River Hill Apts 2946 2nd Street and when was it built?
River Hill Apts 2946 2nd Street has 37,680 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1943 as its year built. It is classed as multifamily housing.
Is River Hill Apts 2946 2nd 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, “River Hill Apts 2946 2nd Street, Washington, DC — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/washington-dc/river-hill-apts-2946-2nd-street-f246fca0 (data as of July 9, 2026).