The Observatory of Georgetown
Multifamily Housing in Washington, DC, DC · 2111 Wisconsin Ave NW · 20007
At a glance
The Observatory of Georgetown is a 153,005-square-foot multifamily housing building at 2111 Wisconsin Ave NW in Washington, DC, built in 1988. In its 2024 Washington, DC benchmarking disclosure it reported an ENERGY STAR score of 46 out of 100 (grade D), a site energy-use intensity of 52.6 kBtu/ft² and 633 tCO₂e of greenhouse-gas emissions. That score is higher than 16% 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 | 46 (band D) |
| Site EUI | 52.6 kBtu/ft² |
| Source EUI | 123.1 kBtu/ft² |
| GHG emissions | 633 tCO₂e |
| GHG intensity | 4.1 kgCO₂e/ft² |
| Electricity | 1,740,035 kWh |
| Natural gas | 21,120 therms |
| Water use | 7,178 kgal |
| Gross floor area | 153,005 sq ft |
| Source record | dc:PM3507393:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 46 | -5 | 52.6 kBtu/ft² | 633 tCO₂e |
| 2023 | 51 | ±0 | 48.8 kBtu/ft² | 600 tCO₂e |
| 2022 | 51 | +3 | 51.5 kBtu/ft² | 640 tCO₂e |
| 2021 | 48 | -1 | 51.7 kBtu/ft² | 641 tCO₂e |
| 2020 | 49 | +2 | 51.2 kBtu/ft² | 614 tCO₂e |
| 2019 | 47 | +1 | 54.1 kBtu/ft² | 687 tCO₂e |
| 2018 | 46 | +12 | 55.4 kBtu/ft² | 722 tCO₂e |
| 2017 | 34 | +9 | 57.7 kBtu/ft² | 713 tCO₂e |
| 2016 | 25 | +7 | 63.9 kBtu/ft² | 812 tCO₂e |
| 2015 | 18 | +17 | 66.4 kBtu/ft² | 985 tCO₂e |
| 2014 | 1 | 100.5 kBtu/ft² | 1,562 tCO₂e | |
| 2013 | — | 36.3 kBtu/ft² | 569 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
THE OBSERVATORY OF GEORGETOWN
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Location
- Address
- 2111 Wisconsin Ave NW
- City
- Washington, DC
- State
- District of Columbia
- ZIP
- 20007
- Coordinates
- 38.91837, -77.06853
Within ~1 km
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See also: most efficient in Washington, DC · biggest emitters
How does The Observatory of Georgetown 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. The Observatory of Georgetown's ENERGY STAR score of 46 compares with an average of 72 across the 1,618 that report a score; it scores higher than 16% of them and lower than 83%. Its site EUI of 52.6 kBtu/ft² is roughly in line with the average of 51.1 kBtu/ft². Its emissions intensity of 4.1 kgCO₂e/ft² is roughly in line with the group average of 3.8 kgCO₂e/ft².
At 153,005 sq ft, it is about 12% above the average floor area of 136,346 sq ft for those buildings. It was built in 1988, 23 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 The Observatory of Georgetown's energy performance changed over time?
BuildingCensus holds 12 Washington, DC disclosures for The Observatory of Georgetown, covering report years 2013–2024. Its ENERGY STAR score went from 1 in 2014 to 46 in 2024 (+45 points); its best year on file was 2022, at 51. Site EUI moved from 36.3 kBtu/ft² (2013) to 52.6 kBtu/ft² (2024), an 45% increase. Reported emissions went from 569 tCO₂e to 633 tCO₂e over the same span (up 11%).
What does an ENERGY STAR score of 46 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 46 means the building performs better than about 46% of its national peers. BuildingCensus bands the score into report-card grades; 46 falls in band D — lowest band (1–54). It sits 29 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. The Observatory of Georgetown's 52.6 kBtu/ft² across 153,005 sq ft works out to about 8 billion Btu (2,359 MWh-equivalent) in 2024. Its source EUI of 123.1 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 1,740,035 kWh of electricity, 21,120 therms of natural gas and 7,178 thousand gallons of water for the year.
Which law requires The Observatory of Georgetown to report its energy use?
The Observatory of Georgetown 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:PM3507393:2024). 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
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- Multifamily Housing buildings in Washington, DC· 1,799 benchmarked
- All Washington, DC benchmarked buildings· Clean and Affordable Energy Act / BEPS
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Frequently asked questions
What is The Observatory of Georgetown's energy grade?
The Observatory of Georgetown scores 46 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 The Observatory of Georgetown use?
Its 2024 site energy-use intensity was 52.6 kBtu/ft² (123.1 kBtu/ft² source) across 153,005 sq ft, including 1,740,035 kWh of electricity and 21,120 therms of natural gas.
What are The Observatory of Georgetown's carbon emissions?
The Observatory of Georgetown reported 633 tCO₂e of greenhouse-gas emissions (4.1 kgCO₂e/ft²) for 2024.
Where is The Observatory of Georgetown?
The Observatory of Georgetown is at 2111 Wisconsin Ave NW, in Washington, DC 20007. Its coordinates are 38.91837, -77.06853 (latitude, longitude), as published in the Building Energy Benchmarking file.
How big is The Observatory of Georgetown and when was it built?
The Observatory of Georgetown has 153,005 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1988 as its year built. It is classed as multifamily housing.
Is The Observatory of Georgetown 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, “The Observatory of Georgetown, Washington, DC — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/washington-dc/the-observatory-of-georgetown-c559baa6 (data as of July 9, 2026).