Tatham House Condominium
Multifamily Housing in Washington, DC, DC · 2711 Ordway Street NW · 20008
At a glance
Tatham House Condominium is a 44,608-square-foot multifamily housing building at 2711 Ordway Street NW in Washington, DC, built in 1964. In its 2024 Washington, DC benchmarking disclosure it reported an ENERGY STAR score of 77 out of 100 (grade B), a site energy-use intensity of 53.3 kBtu/ft² and 151 tCO₂e of greenhouse-gas emissions. That score is higher than 47% 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 | 77 (band B) |
| Site EUI | 53.3 kBtu/ft² |
| Source EUI | 84.2 kBtu/ft² |
| GHG emissions | 151 tCO₂e |
| GHG intensity | 3.4 kgCO₂e/ft² |
| Electricity | 210,934 kWh |
| Natural gas | 16,596 therms |
| Water use | 1,805 kgal |
| Gross floor area | 44,608 sq ft |
| Source record | dc:PM20462401:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 77 | +1 | 53.3 kBtu/ft² | 151 tCO₂e |
| 2023 | 76 | -3 | 51.1 kBtu/ft² | 145 tCO₂e |
| 2022 | 79 | 54.1 kBtu/ft² | 153 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
No owning organisation shown. Names of private individuals in the disclosure are not published here.
Own or manage this building? Claim it to correct the record and get compliance alerts.
Location
- Address
- 2711 Ordway Street NW
- City
- Washington, DC
- State
- District of Columbia
- ZIP
- 20008
- Coordinates
- 38.93454, -77.05518
Within ~1 km
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- Quebec House Northscore 99
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- 2501 Porter - 29817score 94
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See also: most efficient in Washington, DC · biggest emitters
How does Tatham House Condominium 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. Tatham House Condominium's ENERGY STAR score of 77 compares with an average of 72 across the 1,618 that report a score; it scores higher than 47% of them and lower than 51%. Its site EUI of 53.3 kBtu/ft² is roughly in line with the average of 51.1 kBtu/ft². Its emissions intensity of 3.4 kgCO₂e/ft² is about 11% below the group average of 3.8 kgCO₂e/ft².
At 44,608 sq ft, it is about 67% below the average floor area of 136,346 sq ft for those buildings. Its 1964 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 Tatham House Condominium's energy performance changed over time?
BuildingCensus holds 3 Washington, DC disclosures for Tatham House Condominium, covering report years 2022–2024. Its ENERGY STAR score went from 79 in 2022 to 77 in 2024 (-2 points); its best year on file was 2022, at 79. Site EUI moved from 54.1 kBtu/ft² (2022) to 53.3 kBtu/ft² (2024), a 1% decrease. Reported emissions went from 153 tCO₂e to 151 tCO₂e over the same span (down 1%).
What does an ENERGY STAR score of 77 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 77 means the building performs better than about 77% of its national peers. BuildingCensus bands the score into report-card grades; 77 falls in band B — above median (70–84). Scores of 75 or higher meet the threshold for ENERGY STAR certification; certification itself is a separate, verified application that the disclosure does not record. 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. Tatham House Condominium's 53.3 kBtu/ft² across 44,608 sq ft works out to about 2.4 billion Btu (697 MWh-equivalent) in 2024. Its source EUI of 84.2 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 210,934 kWh of electricity, 16,596 therms of natural gas and 1,805 thousand gallons of water for the year.
Which law requires Tatham House Condominium to report its energy use?
Tatham House Condominium 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:PM20462401:2024). 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
- Most efficient large buildings in Washington, DC
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- Biggest emitters in Washington, DC
Frequently asked questions
What is Tatham House Condominium's energy grade?
Tatham House Condominium scores 77 out of 100 on ENERGY STAR — band B, above median (70–84) — in its 2024 Washington, DC disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does Tatham House Condominium use?
Its 2024 site energy-use intensity was 53.3 kBtu/ft² (84.2 kBtu/ft² source) across 44,608 sq ft, including 210,934 kWh of electricity and 16,596 therms of natural gas.
What are Tatham House Condominium's carbon emissions?
Tatham House Condominium reported 151 tCO₂e of greenhouse-gas emissions (3.4 kgCO₂e/ft²) for 2024.
Where is Tatham House Condominium?
Tatham House Condominium is at 2711 Ordway Street NW, in Washington, DC 20008. Its coordinates are 38.93454, -77.05518 (latitude, longitude), as published in the Building Energy Benchmarking file.
How big is Tatham House Condominium and when was it built?
Tatham House Condominium has 44,608 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1964 as its year built. It is classed as multifamily housing.
Is Tatham House Condominium 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, “Tatham House Condominium, Washington, DC — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/washington-dc/tatham-house-condominium-5b6c2cd6 (data as of July 9, 2026).