Sibley Plaza Senior
Multifamily Housing in Washington, DC, DC · 1140 North Capitol St. NW · 20001
At a glance
Sibley Plaza Senior is a 196,645-square-foot multifamily housing building at 1140 North Capitol St. NW in Washington, DC, built in 1968. In its 2023 Washington, DC benchmarking disclosure it reported an ENERGY STAR score of 23 out of 100 (grade D), a site energy-use intensity of 71.1 kBtu/ft² and 853 tCO₂e of greenhouse-gas emissions. That score is higher than 6% of the 1,618 scored multifamily housing buildings in Washington, DC.
Clean and Affordable Energy Act / BEPS · reporting year 2023
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 23 (band D) |
| Site EUI | 71.1 kBtu/ft² |
| Source EUI | 111.8 kBtu/ft² |
| GHG emissions | 853 tCO₂e |
| GHG intensity | 4.3 kgCO₂e/ft² |
| Electricity | 1,223,477 kWh |
| Natural gas | 98,076 therms |
| Water use | 29,238 kgal |
| Gross floor area | 196,645 sq ft |
| Source record | dc:PM4097171:2023 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2023latest | 23 | +11 | 71.1 kBtu/ft² | 853 tCO₂e |
| 2022 | 12 | -2 | 89.6 kBtu/ft² | 1,098 tCO₂e |
| 2021 | 14 | +7 | 77.9 kBtu/ft² | 1,026 tCO₂e |
| 2020 | 7 | +1 | 85.6 kBtu/ft² | 1,129 tCO₂e |
| 2019 | 6 | +4 | 92.8 kBtu/ft² | 1,223 tCO₂e |
| 2018 | 2 | +1 | 105.8 kBtu/ft² | 1,407 tCO₂e |
| 2017 | 1 | ±0 | 109.3 kBtu/ft² | 1,556 tCO₂e |
| 2016 | 1 | ±0 | 108.1 kBtu/ft² | 1,565 tCO₂e |
| 2015 | 1 | -2 | 107.6 kBtu/ft² | 1,543 tCO₂e |
| 2014 | 3 | +1 | 90.8 kBtu/ft² | 1,307 tCO₂e |
| 2013 | 2 | +1 | 106.4 kBtu/ft² | 1,415 tCO₂e |
| 2012 | 1 | 102.0 kBtu/ft² | 1,425 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
DISTRICT OF COLUMBIA
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Location
- Address
- 1140 North Capitol St. NW
- City
- Washington, DC
- State
- District of Columbia
- ZIP
- 20001
- Coordinates
- 38.90512, -77.01010
Within ~1 km
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See also: most efficient in Washington, DC · biggest emitters
How does Sibley Plaza Senior 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. Sibley Plaza Senior's ENERGY STAR score of 23 compares with an average of 72 across the 1,618 that report a score; it scores higher than 6% of them and lower than 94%. Its site EUI of 71.1 kBtu/ft² is about 39% 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 4.3 kgCO₂e/ft² is about 14% above the group average of 3.8 kgCO₂e/ft².
At 196,645 sq ft, it is about 44% above the average floor area of 136,346 sq ft for those buildings. Its 1968 construction date is close to 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 Sibley Plaza Senior's energy performance changed over time?
BuildingCensus holds 12 Washington, DC disclosures for Sibley Plaza Senior, covering report years 2012–2023. Its ENERGY STAR score went from 1 in 2012 to 23 in 2023 (+22 points). Site EUI moved from 102.0 kBtu/ft² (2012) to 71.1 kBtu/ft² (2023), a 30% decrease. Reported emissions went from 1,425 tCO₂e to 853 tCO₂e over the same span (down 40%).
What does an ENERGY STAR score of 23 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 23 means the building performs better than about 23% of its national peers. BuildingCensus bands the score into report-card grades; 23 falls in band D — lowest band (1–54). It sits 52 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. Sibley Plaza Senior's 71.1 kBtu/ft² across 196,645 sq ft works out to about 14 billion Btu (4,098 MWh-equivalent) in 2023. Its source EUI of 111.8 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 1,223,477 kWh of electricity, 98,076 therms of natural gas and 29,238 thousand gallons of water for the year.
Which law requires Sibley Plaza Senior to report its energy use?
Sibley Plaza Senior 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 2023 disclosure (source record dc:PM4097171:2023). 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
- Richardson Dwellings· 195,956 sq ft · score 42 (D)
- Boston House Condominium· 195,815 sq ft · score 95 (A)
- The Cathedral Avenue Cooperative LLC· 195,651 sq ft · score 72 (B)
- The Palladium· 195,480 sq ft · score 76 (B)
- The Cathedral Avenue: 4101 Cathedral Avenue Northwest· 195,417 sq ft · score 71 (B)
- Cathedral Avenue Cooperative, Inc.· 195,417 sq ft · EUI 139.3 kBtu/ft²
- Multifamily Housing buildings in Washington, DC· 1,799 benchmarked
- All Washington, DC benchmarked buildings· Clean and Affordable Energy Act / BEPS
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- Biggest emitters in Washington, DC
Frequently asked questions
What is Sibley Plaza Senior's energy grade?
Sibley Plaza Senior scores 23 out of 100 on ENERGY STAR — band D, lowest band (1–54) — in its 2023 Washington, DC disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does Sibley Plaza Senior use?
Its 2023 site energy-use intensity was 71.1 kBtu/ft² (111.8 kBtu/ft² source) across 196,645 sq ft, including 1,223,477 kWh of electricity and 98,076 therms of natural gas.
What are Sibley Plaza Senior's carbon emissions?
Sibley Plaza Senior reported 853 tCO₂e of greenhouse-gas emissions (4.3 kgCO₂e/ft²) for 2023.
Where is Sibley Plaza Senior?
Sibley Plaza Senior is at 1140 North Capitol St. NW, in Washington, DC 20001. Its coordinates are 38.90512, -77.01010 (latitude, longitude), as published in the Building Energy Benchmarking file.
How big is Sibley Plaza Senior and when was it built?
Sibley Plaza Senior has 196,645 sq ft of gross floor area, as reported in its 2023 disclosure. The disclosure lists 1968 as its year built. It is classed as multifamily housing.
Is Sibley Plaza Senior covered by the Clean and Affordable Energy Act / BEPS?
Yes — it appears in the 2023 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, “Sibley Plaza Senior, Washington, DC — 2023 benchmarking disclosure”, https://buildingcensus.com/buildings/washington-dc/sibley-plaza-senior-0c8c238c (data as of July 9, 2026).