4201 Connecticut Avenue
Office in Washington, DC, DC · 4201 Connecticut Avenue, NW · 20008
At a glance
4201 Connecticut Avenue is a 69,609-square-foot office building at 4201 Connecticut Avenue, NW in Washington, DC, built in 1964. In its 2024 Washington, DC benchmarking disclosure it reported an ENERGY STAR score of 65 out of 100 (grade C), a site energy-use intensity of 42.4 kBtu/ft² and 259 tCO₂e of greenhouse-gas emissions. That score is higher than 28% of the 774 scored office buildings in Washington, DC.
Clean and Affordable Energy Act / BEPS · reporting year 2024
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 65 (band C) |
| Site EUI | 42.4 kBtu/ft² |
| Source EUI | 118.9 kBtu/ft² |
| GHG emissions | 259 tCO₂e |
| GHG intensity | 3.7 kgCO₂e/ft² |
| Electricity | 865,965 kWh |
| Natural gas | 0 therms |
| Water use | 140 kgal |
| Gross floor area | 69,609 sq ft |
| Source record | dc:PM3994435:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 65 | +6 | 42.4 kBtu/ft² | 259 tCO₂e |
| 2023 | 59 | +9 | 45.3 kBtu/ft² | 277 tCO₂e |
| 2022 | 50 | +4 | 52.7 kBtu/ft² | 315 tCO₂e |
| 2021 | 46 | -5 | 55.1 kBtu/ft² | 351 tCO₂e |
| 2020 | 51 | +10 | 53.1 kBtu/ft² | 349 tCO₂e |
| 2019 | 41 | +3 | 68.1 kBtu/ft² | 448 tCO₂e |
| 2018 | 38 | -16 | 70.9 kBtu/ft² | 466 tCO₂e |
| 2017 | 54 | -6 | 66.4 kBtu/ft² | 506 tCO₂e |
| 2016 | 60 | +1 | 64.0 kBtu/ft² | 504 tCO₂e |
| 2015 | 59 | 64.6 kBtu/ft² | 593 tCO₂e | |
| 2014 | — | 60.6 kBtu/ft² | 557 tCO₂e | |
| 2013 | — | 69.5 kBtu/ft² | 605 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
BRICKMAN 4201 CONNECTICUT AVENUE LLC
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Location
- Address
- 4201 Connecticut Avenue, NW
- City
- Washington, DC
- State
- District of Columbia
- ZIP
- 20008
- Coordinates
- 38.94347, -77.06263
Within ~1 km
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See also: most efficient in Washington, DC · biggest emitters
How does 4201 Connecticut Avenue compare with other office buildings in Washington, DC?
The latest disclosures cover 899 office buildings in Washington, DC, out of 6,870 buildings citywide. 4201 Connecticut Avenue's ENERGY STAR score of 65 compares with an average of 70 across the 774 that report a score; it scores higher than 28% of them and lower than 71%. Its site EUI of 42.4 kBtu/ft² is about 24% below the average of 55.6 kBtu/ft² — it uses less energy per square foot than the typical building in that group. Its emissions intensity of 3.7 kgCO₂e/ft² is about 25% below the group average of 5.0 kgCO₂e/ft².
At 69,609 sq ft, it is about 68% below the average floor area of 216,135 sq ft for those buildings. It was built in 1964, 10 years earlier than the group's average year built (1974). Across all 24 jurisdictions BuildingCensus covers, the 15,264 office buildings average an ENERGY STAR score of 73 and a site EUI of 59.3 kBtu/ft².
How has 4201 Connecticut Avenue's energy performance changed over time?
BuildingCensus holds 12 Washington, DC disclosures for 4201 Connecticut Avenue, covering report years 2013–2024. Its ENERGY STAR score went from 59 in 2015 to 65 in 2024 (+6 points). Site EUI moved from 69.5 kBtu/ft² (2013) to 42.4 kBtu/ft² (2024), a 39% decrease. Reported emissions went from 605 tCO₂e to 259 tCO₂e over the same span (down 57%).
What does an ENERGY STAR score of 65 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 65 means the building performs better than about 65% of its national peers. BuildingCensus bands the score into report-card grades; 65 falls in band C — below median (55–69). It sits 10 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. 4201 Connecticut Avenue's 42.4 kBtu/ft² across 69,609 sq ft works out to about 3 billion Btu (865 MWh-equivalent) in 2024. Its source EUI of 118.9 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 865,965 kWh of electricity, 0 therms of natural gas and 140 thousand gallons of water for the year.
Which law requires 4201 Connecticut Avenue to report its energy use?
4201 Connecticut Avenue 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:PM3994435:2024). 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 office buildings in Washington, DC
- 1634 I St: 1634 I Street Northwest· 69,230 sq ft · score 79 (B)
- OSM - 3333 K Street NW· 68,884 sq ft · score 64 (C)
- Emery DCPS Admin Office· 68,300 sq ft · EUI 22.9 kBtu/ft²
- DCPS Offices (Old CHOICE Academy @ Emery)· 68,300 sq ft · score 96 (A)
- 1100 Vermont Avenue· 68,031 sq ft · score 75 (B)
- 1640 Rhode Island Avenue NW (HRC)· 67,928 sq ft · score 65 (C)
- Office buildings in Washington, DC· 899 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 4201 Connecticut Avenue's energy grade?
4201 Connecticut Avenue scores 65 out of 100 on ENERGY STAR — band C, below median (55–69) — in its 2024 Washington, DC disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does 4201 Connecticut Avenue use?
Its 2024 site energy-use intensity was 42.4 kBtu/ft² (118.9 kBtu/ft² source) across 69,609 sq ft, including 865,965 kWh of electricity and 0 therms of natural gas.
What are 4201 Connecticut Avenue's carbon emissions?
4201 Connecticut Avenue reported 259 tCO₂e of greenhouse-gas emissions (3.7 kgCO₂e/ft²) for 2024.
Where is 4201 Connecticut Avenue?
4201 Connecticut Avenue is at 4201 Connecticut Avenue, NW, in Washington, DC 20008. Its coordinates are 38.94347, -77.06263 (latitude, longitude), as published in the Building Energy Benchmarking file.
How big is 4201 Connecticut Avenue and when was it built?
4201 Connecticut Avenue has 69,609 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1964 as its year built. It is classed as office.
Is 4201 Connecticut Avenue 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, “4201 Connecticut Avenue, Washington, DC — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/washington-dc/4201-connecticut-avenue-3820d4db (data as of July 9, 2026).