1727 Massachusetts Ave NW
Multifamily Housing in Washington, DC, DC · 20036
At a glance
1727 Massachusetts Ave NW is a 68,660-square-foot multifamily housing building in Washington, DC, built in 1965. 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 72.7 kBtu/ft² and 339 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 | 72.7 kBtu/ft² |
| Source EUI | 130.7 kBtu/ft² |
| GHG emissions | 339 tCO₂e |
| GHG intensity | 4.9 kgCO₂e/ft² |
| Electricity | 625,533 kWh |
| Natural gas | 28,582 therms |
| Water use | 4,106 kgal |
| Gross floor area | 68,660 sq ft |
| Source record | dc:PM47302092:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 77 | -3 | 72.7 kBtu/ft² | 339 tCO₂e |
| 2023 | 80 | +9 | 69.2 kBtu/ft² | 322 tCO₂e |
| 2022 | 71 | 84.6 kBtu/ft² | 380 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 WINTHROP CONDOMINIUM
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Location
- Address
- 1727 Massachusetts Ave NW
- City
- Washington, DC
- State
- District of Columbia
- ZIP
- 20036
- Coordinates
- 38.90886, -77.03984
Within ~1 km
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See also: most efficient in Washington, DC · biggest emitters
How does 1727 Massachusetts Ave NW 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. 1727 Massachusetts Ave NW'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 72.7 kBtu/ft² is about 42% 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 4.9 kgCO₂e/ft² is about 30% above the group average of 3.8 kgCO₂e/ft².
At 68,660 sq ft, it is about half of the average floor area of 136,346 sq ft for those buildings. Its 1965 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 1727 Massachusetts Ave NW's energy performance changed over time?
BuildingCensus holds 3 Washington, DC disclosures for 1727 Massachusetts Ave NW, covering report years 2022–2024. Its ENERGY STAR score went from 71 in 2022 to 77 in 2024 (+6 points); its best year on file was 2023, at 80. Site EUI moved from 84.6 kBtu/ft² (2022) to 72.7 kBtu/ft² (2024), a 14% decrease. Reported emissions went from 380 tCO₂e to 339 tCO₂e over the same span (down 11%).
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. 1727 Massachusetts Ave NW's 72.7 kBtu/ft² across 68,660 sq ft works out to about 5 billion Btu (1,463 MWh-equivalent) in 2024. Its source EUI of 130.7 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 625,533 kWh of electricity, 28,582 therms of natural gas and 4,106 thousand gallons of water for the year.
Which law requires 1727 Massachusetts Ave NW to report its energy use?
1727 Massachusetts Ave NW 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:PM47302092:2024). 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
- Lincoln Park Terrace Condominium· 68,628 sq ft · score 99 (A)
- Park Tower· 68,627 sq ft · score 37 (D)
- Bader Condominium· 68,360 sq ft · score 46 (D)
- The Policy· 68,079 sq ft · EUI 38.3 kBtu/ft²
- The Policy· 68,079 sq ft · score 90 (A)
- Elysium Fourteen (ly056)· 68,041 sq ft · score 41 (D)
- 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
- Least efficient large buildings in Washington, DC
- Biggest emitters in Washington, DC
Frequently asked questions
What is 1727 Massachusetts Ave NW's energy grade?
1727 Massachusetts Ave NW 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 1727 Massachusetts Ave NW use?
Its 2024 site energy-use intensity was 72.7 kBtu/ft² (130.7 kBtu/ft² source) across 68,660 sq ft, including 625,533 kWh of electricity and 28,582 therms of natural gas.
What are 1727 Massachusetts Ave NW's carbon emissions?
1727 Massachusetts Ave NW reported 339 tCO₂e of greenhouse-gas emissions (4.9 kgCO₂e/ft²) for 2024.
Where is 1727 Massachusetts Ave NW?
1727 Massachusetts Ave NW is in Washington, DC 20036. Its coordinates are 38.90886, -77.03984 (latitude, longitude), as published in the Building Energy Benchmarking file.
How big is 1727 Massachusetts Ave NW and when was it built?
1727 Massachusetts Ave NW has 68,660 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1965 as its year built. It is classed as multifamily housing.
Is 1727 Massachusetts Ave NW 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, “1727 Massachusetts Ave NW, Washington, DC — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/washington-dc/1727-massachusetts-ave-nw-8885b675 (data as of July 9, 2026).