The Carriage House Condominium
Multifamily Housing in Washington, DC, DC · 2201 L St NW · 20037
At a glance
The Carriage House Condominium is a 133,651-square-foot multifamily housing building at 2201 L St NW in Washington, DC, built in 1967. In its 2024 Washington, DC benchmarking disclosure it reported an ENERGY STAR score of 85 out of 100 (grade A), a site energy-use intensity of 56.1 kBtu/ft² and 499 tCO₂e of greenhouse-gas emissions. That score is higher than 59% 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 | 85 (band A) |
| Site EUI | 56.1 kBtu/ft² |
| Source EUI | 96.9 kBtu/ft² |
| GHG emissions | 499 tCO₂e |
| GHG intensity | 3.7 kgCO₂e/ft² |
| Electricity | 851,462 kWh |
| Natural gas | 45,909 therms |
| Water use | 5,586 kgal |
| Gross floor area | 133,651 sq ft |
| Source record | dc:PM10524120:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 85 | +2 | 56.1 kBtu/ft² | 499 tCO₂e |
| 2023 | 83 | +1 | 55.8 kBtu/ft² | 498 tCO₂e |
| 2022 | 82 | +16 | 59.9 kBtu/ft² | 537 tCO₂e |
| 2021 | 66 | ±0 | 73.6 kBtu/ft² | 527 tCO₂e |
| 2020 | 66 | +1 | 72.8 kBtu/ft² | 520 tCO₂e |
| 2019 | 65 | 75.9 kBtu/ft² | 545 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 CARRIAGE HOUSE CONDOMINIUM
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Location
- Address
- 2201 L St NW
- City
- Washington, DC
- State
- District of Columbia
- ZIP
- 20037
- Coordinates
- 38.90400, -77.04925
Within ~1 km
Nearby benchmarked buildings
- BEPS1 - Foggy Bottom Campusscore —
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- Main Complexscore 59
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- International Squarescore 56
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- Ross Hall Groupscore —
College/University · 1,047,627 sq ft
- Columbia Plaza All Bldgsscore 30
Multifamily Housing · 942,990 sq ft
- Lafayette Centrescore 74
Office · 908,482 sq ft
See also: most efficient in Washington, DC · biggest emitters
How does The Carriage 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. The Carriage House Condominium's ENERGY STAR score of 85 compares with an average of 72 across the 1,618 that report a score; it scores higher than 59% of them and lower than 39%. Its site EUI of 56.1 kBtu/ft² is roughly in line with the average of 51.1 kBtu/ft². Its emissions intensity of 3.7 kgCO₂e/ft² is roughly in line with the group average of 3.8 kgCO₂e/ft².
At 133,651 sq ft, it is roughly in line with the average floor area of 136,346 sq ft for those buildings. Its 1967 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 The Carriage House Condominium's energy performance changed over time?
BuildingCensus holds 6 Washington, DC disclosures for The Carriage House Condominium, covering report years 2019–2024. Its ENERGY STAR score went from 65 in 2019 to 85 in 2024 (+20 points). Site EUI moved from 75.9 kBtu/ft² (2019) to 56.1 kBtu/ft² (2024), a 26% decrease. Reported emissions went from 545 tCO₂e to 499 tCO₂e over the same span (down 8%).
What does an ENERGY STAR score of 85 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 85 means the building performs better than about 85% of its national peers. BuildingCensus bands the score into report-card grades; 85 falls in band A — high performer (85–100). 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. The Carriage House Condominium's 56.1 kBtu/ft² across 133,651 sq ft works out to about 7.5 billion Btu (2,197 MWh-equivalent) in 2024. Its source EUI of 96.9 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 851,462 kWh of electricity, 45,909 therms of natural gas and 5,586 thousand gallons of water for the year.
Which law requires The Carriage House Condominium to report its energy use?
The Carriage 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:PM10524120:2024). 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
- THE DRESDEN CONDOMINIUM· 133,600 sq ft · score 98 (A)
- Sedgwick Gardens Apartments· 133,557 sq ft · score 58 (C)
- The Floridian· 133,469 sq ft · score 82 (B)
- Camden Grand Parc· 133,225 sq ft · score 88 (A)
- Trio @ Stanton Square (tr160)· 132,924 sq ft · score 69 (C)
- Iowa Condominium· 131,992 sq ft · score 95 (A)
- 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 Carriage House Condominium's energy grade?
The Carriage House Condominium scores 85 out of 100 on ENERGY STAR — band A, high performer (85–100) — in its 2024 Washington, DC disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does The Carriage House Condominium use?
Its 2024 site energy-use intensity was 56.1 kBtu/ft² (96.9 kBtu/ft² source) across 133,651 sq ft, including 851,462 kWh of electricity and 45,909 therms of natural gas.
What are The Carriage House Condominium's carbon emissions?
The Carriage House Condominium reported 499 tCO₂e of greenhouse-gas emissions (3.7 kgCO₂e/ft²) for 2024.
Where is The Carriage House Condominium?
The Carriage House Condominium is at 2201 L St NW, in Washington, DC 20037. Its coordinates are 38.90400, -77.04925 (latitude, longitude), as published in the Building Energy Benchmarking file.
How big is The Carriage House Condominium and when was it built?
The Carriage House Condominium has 133,651 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1967 as its year built. It is classed as multifamily housing.
Is The Carriage 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, “The Carriage House Condominium, Washington, DC — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/washington-dc/the-carriage-house-condominium-e5fba6a1 (data as of July 9, 2026).