The Flats @ Union Row
Multifamily Housing in Washington, DC, DC · 2125 14th St NW
At a glance
The Flats @ Union Row is a 187,357-square-foot multifamily housing building at 2125 14th St NW in Washington, DC, built in 2007.
Clean and Affordable Energy Act / BEPS · reporting year 2016
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | — |
| Site EUI | — |
| Source EUI | — |
| GHG emissions | — |
| GHG intensity | — |
| Electricity | 0 kWh |
| Natural gas | 0 therms |
| Gross floor area | 187,357 sq ft |
| Source record | dc:PM3472298:2016 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2016latest | — | — | — | |
| 2014 | 58 | 59.3 kBtu/ft² | 1,061 tCO₂e | |
| 2013 | — | 51.9 kBtu/ft² | 905 tCO₂e | |
| 2012 | — | 112.0 kBtu/ft² | 1,612 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 FLATS @ UNION ROW
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Location
- Address
- 2125 14th St NW
- City
- Washington, DC
- State
- District of Columbia
- Coordinates
- 38.91859, -77.03162
Within ~1 km
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See also: most efficient in Washington, DC · biggest emitters
How does The Flats @ Union Row 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.
At 187,357 sq ft, it is about 37% above the average floor area of 136,346 sq ft for those buildings. It was built in 2007, 42 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 Flats @ Union Row's energy performance changed over time?
BuildingCensus holds 4 Washington, DC disclosures for The Flats @ Union Row, covering report years 2012, 2013, 2014, 2016. Site EUI moved from 112.0 kBtu/ft² (2012) to 59.3 kBtu/ft² (2014), a 47% decrease. Reported emissions went from 1,612 tCO₂e to 1,061 tCO₂e over the same span (down 34%).
Which law requires The Flats @ Union Row to report its energy use?
The Flats @ Union Row 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 2016 disclosure (source record dc:PM3472298:2016). 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
- Congress Park I (cn401)· 186,294 sq ft · score 60 (C)
- Chase Point Condominium· 185,670 sq ft
- Cathedral Mansions· 185,551 sq ft · EUI 65.3 kBtu/ft²
- Rhode Island Row (rw49)· 185,468 sq ft · score 43 (D)
- Flats 130 at Constitution Square II· 185,341 sq ft · score 75 (B)
- 2950 Van Ness Street NW· 184,915 sq ft · EUI 13.6 kBtu/ft²
- 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 The Flats @ Union Row's energy grade?
The Flats @ Union Row did not report an ENERGY STAR score in its 2016 disclosure.
How much energy does The Flats @ Union Row use?
No energy-use intensity was reported for 2016.
What are The Flats @ Union Row's carbon emissions?
No greenhouse-gas emissions figure was reported for 2016.
Where is The Flats @ Union Row?
The Flats @ Union Row is at 2125 14th St NW, in Washington, DC. Its coordinates are 38.91859, -77.03162 (latitude, longitude), as published in the Building Energy Benchmarking file.
How big is The Flats @ Union Row and when was it built?
The Flats @ Union Row has 187,357 sq ft of gross floor area, as reported in its 2016 disclosure. The disclosure lists 2007 as its year built. It is classed as multifamily housing.
Is The Flats @ Union Row covered by the Clean and Affordable Energy Act / BEPS?
Yes — it appears in the 2016 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 Flats @ Union Row, Washington, DC — 2016 benchmarking disclosure”, https://buildingcensus.com/buildings/washington-dc/the-flats-union-row-58ac9825 (data as of July 9, 2026).