DC Office of Aging and Hayes Senior Wellness Center
Office in Washington, DC, DC · 500 K STREET NE · 20002
At a glance
DC Office of Aging and Hayes Senior Wellness Center is a 19,662-square-foot office building at 500 K STREET NE in Washington, DC, built in 1897. In its 2024 Washington, DC benchmarking disclosure it reported a site energy-use intensity of 92.1 kBtu/ft² and 143 tCO₂e of greenhouse-gas emissions.
Clean and Affordable Energy Act / BEPS · reporting year 2024
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | — |
| Site EUI | 92.1 kBtu/ft² |
| Source EUI | 255.2 kBtu/ft² |
| GHG emissions | 143 tCO₂e |
| GHG intensity | 7.3 kgCO₂e/ft² |
| Electricity | 521,965 kWh |
| Natural gas | 295 therms |
| Gross floor area | 19,662 sq ft |
| Source record | dc:PM12004259:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | — | 92.1 kBtu/ft² | 143 tCO₂e | |
| 2023 | — | 86.2 kBtu/ft² | 134 tCO₂e | |
| 2022 | — | 112.2 kBtu/ft² | 191 tCO₂e | |
| 2021 | — | 122.2 kBtu/ft² | 214 tCO₂e | |
| 2020 | 14 | +12 | 91.5 kBtu/ft² | 164 tCO₂e |
| 2019 | 2 | 133.2 kBtu/ft² | 242 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
- 500 K STREET NE
- City
- Washington, DC
- State
- District of Columbia
- ZIP
- 20002
- Coordinates
- 38.90287, -76.99918
Within ~1 km
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See also: most efficient in Washington, DC · biggest emitters
How does DC Office of Aging and Hayes Senior Wellness Center compare with other office buildings in Washington, DC?
The latest disclosures cover 899 office buildings in Washington, DC, out of 6,870 buildings citywide. Its site EUI of 92.1 kBtu/ft² is about 66% above the average of 55.6 kBtu/ft² — it uses more energy per square foot than the typical building in that group. Its emissions intensity of 7.3 kgCO₂e/ft² is about 46% above the group average of 5.0 kgCO₂e/ft².
At 19,662 sq ft, it is about 91% below the average floor area of 216,135 sq ft for those buildings. It was built in 1897, 77 years earlier than the group's average year built (1974). Across all 24 jurisdictions BuildingCensus covers, the 15,264 office buildings average an ENERGY STAR score of 73 and a site EUI of 59.3 kBtu/ft².
How has DC Office of Aging and Hayes Senior Wellness Center's energy performance changed over time?
BuildingCensus holds 6 Washington, DC disclosures for DC Office of Aging and Hayes Senior Wellness Center, covering report years 2019–2024. Its ENERGY STAR score went from 2 in 2019 to 14 in 2020 (+12 points). Site EUI moved from 133.2 kBtu/ft² (2019) to 92.1 kBtu/ft² (2024), a 31% decrease. Reported emissions went from 242 tCO₂e to 143 tCO₂e over the same span (down 41%).
What does a site EUI of 92.1 kBtu/ft² mean?
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. DC Office of Aging and Hayes Senior Wellness Center's 92.1 kBtu/ft² across 19,662 sq ft works out to about 1.8 billion Btu (531 MWh-equivalent) in 2024. Its source EUI of 255.2 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 521,965 kWh of electricity and 295 therms of natural gas for the year.
Which law requires DC Office of Aging and Hayes Senior Wellness Center to report its energy use?
DC Office of Aging and Hayes Senior Wellness Center 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:PM12004259:2024). 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 office buildings in Washington, DC
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Frequently asked questions
What is DC Office of Aging and Hayes Senior Wellness Center's energy grade?
DC Office of Aging and Hayes Senior Wellness Center did not report an ENERGY STAR score in its 2024 disclosure, but its site energy-use intensity was 92.1 kBtu/ft².
How much energy does DC Office of Aging and Hayes Senior Wellness Center use?
Its 2024 site energy-use intensity was 92.1 kBtu/ft² (255.2 kBtu/ft² source) across 19,662 sq ft, including 521,965 kWh of electricity and 295 therms of natural gas.
What are DC Office of Aging and Hayes Senior Wellness Center's carbon emissions?
DC Office of Aging and Hayes Senior Wellness Center reported 143 tCO₂e of greenhouse-gas emissions (7.3 kgCO₂e/ft²) for 2024.
Where is DC Office of Aging and Hayes Senior Wellness Center?
DC Office of Aging and Hayes Senior Wellness Center is at 500 K STREET NE, in Washington, DC 20002. Its coordinates are 38.90287, -76.99918 (latitude, longitude), as published in the Building Energy Benchmarking file.
How big is DC Office of Aging and Hayes Senior Wellness Center and when was it built?
DC Office of Aging and Hayes Senior Wellness Center has 19,662 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1897 as its year built. It is classed as office.
Is DC Office of Aging and Hayes Senior Wellness Center 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, “DC Office of Aging and Hayes Senior Wellness Center, Washington, DC — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/washington-dc/dc-office-of-aging-and-hayes-senior-wellness-center-3d1e11de (data as of July 9, 2026).