House of Lebanon: House of Lebanon
Multifamily Housing in Washington, DC, DC · 27 O Street Northwest · 20001
At a glance
House of Lebanon: House of Lebanon is a 98,120-square-foot multifamily housing building at 27 O Street Northwest in Washington, DC, built in 1930. In its 2024 Washington, DC benchmarking disclosure it reported an ENERGY STAR score of 63 out of 100 (grade C), a site energy-use intensity of 30.3 kBtu/ft² and 217 tCO₂e of greenhouse-gas emissions. That score is higher than 30% 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 | 63 (band C) |
| Site EUI | 30.3 kBtu/ft² |
| Source EUI | 80.4 kBtu/ft² |
| GHG emissions | 217 tCO₂e |
| GHG intensity | 2.2 kgCO₂e/ft² |
| Electricity | 799,455 kWh |
| Natural gas | 0 therms |
| Water use | 4,844 kgal |
| Gross floor area | 98,120 sq ft |
| Source record | dc:PM15100819:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 63 | +9 | 30.3 kBtu/ft² | 217 tCO₂e |
| 2023 | 54 | -11 | 31.0 kBtu/ft² | 216 tCO₂e |
| 2022 | 65 | -28 | 30.9 kBtu/ft² | 239 tCO₂e |
| 2021 | 93 | -2 | 23.3 kBtu/ft² | — |
| 2020 | 95 | -3 | 21.6 kBtu/ft² | — |
| 2019 | 98 | +69 | 19.6 kBtu/ft² | — |
| 2018 | 29 | 38.5 kBtu/ft² | 362 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
- 27 O Street Northwest
- City
- Washington, DC
- State
- District of Columbia
- ZIP
- 20001
- Coordinates
- 38.90881, -77.01027
Within ~1 km
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See also: most efficient in Washington, DC · biggest emitters
How does House of Lebanon: House of Lebanon 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. House of Lebanon: House of Lebanon's ENERGY STAR score of 63 compares with an average of 72 across the 1,618 that report a score; it scores higher than 30% of them and lower than 69%. Its site EUI of 30.3 kBtu/ft² is about 41% 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 2.2 kgCO₂e/ft² is about 42% below the group average of 3.8 kgCO₂e/ft².
At 98,120 sq ft, it is about 28% below the average floor area of 136,346 sq ft for those buildings. It was built in 1930, 35 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 House of Lebanon: House of Lebanon's energy performance changed over time?
BuildingCensus holds 7 Washington, DC disclosures for House of Lebanon: House of Lebanon, covering report years 2018–2024. Its ENERGY STAR score went from 29 in 2018 to 63 in 2024 (+34 points); its best year on file was 2019, at 98. Site EUI moved from 38.5 kBtu/ft² (2018) to 30.3 kBtu/ft² (2024), a 21% decrease. Reported emissions went from 362 tCO₂e to 217 tCO₂e over the same span (down 40%).
What does an ENERGY STAR score of 63 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 63 means the building performs better than about 63% of its national peers. BuildingCensus bands the score into report-card grades; 63 falls in band C — below median (55–69). It sits 12 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. House of Lebanon: House of Lebanon's 30.3 kBtu/ft² across 98,120 sq ft works out to about 3 billion Btu (871 MWh-equivalent) in 2024. Its source EUI of 80.4 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 799,455 kWh of electricity, 0 therms of natural gas and 4,844 thousand gallons of water for the year.
Which law requires House of Lebanon: House of Lebanon to report its energy use?
House of Lebanon: House of Lebanon 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:PM15100819:2024). 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 House of Lebanon: House of Lebanon's energy grade?
House of Lebanon: House of Lebanon scores 63 out of 100 on ENERGY STAR — band C, below median (55–69) — in its 2024 Washington, DC disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does House of Lebanon: House of Lebanon use?
Its 2024 site energy-use intensity was 30.3 kBtu/ft² (80.4 kBtu/ft² source) across 98,120 sq ft, including 799,455 kWh of electricity and 0 therms of natural gas.
What are House of Lebanon: House of Lebanon's carbon emissions?
House of Lebanon: House of Lebanon reported 217 tCO₂e of greenhouse-gas emissions (2.2 kgCO₂e/ft²) for 2024.
Where is House of Lebanon: House of Lebanon?
House of Lebanon: House of Lebanon is at 27 O Street Northwest, in Washington, DC 20001. Its coordinates are 38.90881, -77.01027 (latitude, longitude), as published in the Building Energy Benchmarking file.
How big is House of Lebanon: House of Lebanon and when was it built?
House of Lebanon: House of Lebanon has 98,120 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1930 as its year built. It is classed as multifamily housing.
Is House of Lebanon: House of Lebanon 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, “House of Lebanon: House of Lebanon, Washington, DC — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/washington-dc/house-of-lebanon-house-of-lebanon-6614607e (data as of July 9, 2026).