4107 Connecticut Avenue
Multifamily Housing in Washington, DC, DC · 4107 Connecticut Avenue NW · 20008
At a glance
4107 Connecticut Avenue is a 25,927-square-foot multifamily housing building at 4107 Connecticut Avenue NW in Washington, DC, built in 1957. In its 2024 Washington, DC benchmarking disclosure it reported an ENERGY STAR score of 60 out of 100 (grade C), a site energy-use intensity of 65.6 kBtu/ft² and 126 tCO₂e of greenhouse-gas emissions. That score is higher than 27% 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 | 60 (band C) |
| Site EUI | 65.6 kBtu/ft² |
| Source EUI | 108.9 kBtu/ft² |
| GHG emissions | 126 tCO₂e |
| GHG intensity | 4.9 kgCO₂e/ft² |
| Electricity | 178,338 kWh |
| Natural gas | 3,870 therms |
| Water use | 1,724 kgal |
| Gross floor area | 25,927 sq ft |
| Source record | dc:PM32596774:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 60 | +17 | 65.6 kBtu/ft² | 126 tCO₂e |
| 2023 | 43 | -12 | 75.6 kBtu/ft² | 147 tCO₂e |
| 2022 | 55 | 72.2 kBtu/ft² | 141 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
SIRIUS LLC
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Location
- Address
- 4107 Connecticut Avenue NW
- City
- Washington, DC
- State
- District of Columbia
- ZIP
- 20008
- Coordinates
- 38.94259, -77.06209
Within ~1 km
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See also: most efficient in Washington, DC · biggest emitters
How does 4107 Connecticut Avenue 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. 4107 Connecticut Avenue's ENERGY STAR score of 60 compares with an average of 72 across the 1,618 that report a score; it scores higher than 27% of them and lower than 72%. Its site EUI of 65.6 kBtu/ft² is about 28% 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 28% above the group average of 3.8 kgCO₂e/ft².
At 25,927 sq ft, it is about 81% below the average floor area of 136,346 sq ft for those buildings. It was built in 1957, 8 years earlier 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 4107 Connecticut Avenue's energy performance changed over time?
BuildingCensus holds 3 Washington, DC disclosures for 4107 Connecticut Avenue, covering report years 2022–2024. Its ENERGY STAR score went from 55 in 2022 to 60 in 2024 (+5 points). Site EUI moved from 72.2 kBtu/ft² (2022) to 65.6 kBtu/ft² (2024), a 9% decrease. Reported emissions went from 141 tCO₂e to 126 tCO₂e over the same span (down 10%).
What does an ENERGY STAR score of 60 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 60 means the building performs better than about 60% of its national peers. BuildingCensus bands the score into report-card grades; 60 falls in band C — below median (55–69). It sits 15 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. 4107 Connecticut Avenue's 65.6 kBtu/ft² across 25,927 sq ft works out to about 1.7 billion Btu (498 MWh-equivalent) in 2024. Its source EUI of 108.9 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 178,338 kWh of electricity, 3,870 therms of natural gas and 1,724 thousand gallons of water for the year.
Which law requires 4107 Connecticut Avenue to report its energy use?
4107 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:PM32596774:2024). 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
- Columbia Heights Village (2804-2806)· 25,828 sq ft · score 44 (D)
- Longfellow Arms Apartments· 25,802 sq ft · score 65 (C)
- 3825 Georgia· 25,689 sq ft · score 72 (B)
- 219 Upshur Street NW· 25,688 sq ft · score 64 (C)
- Kalorama Park· 25,652 sq ft · EUI 31.7 kBtu/ft²
- 1401 Whittier Place, NW· 25,627 sq ft
- 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 4107 Connecticut Avenue's energy grade?
4107 Connecticut Avenue scores 60 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 4107 Connecticut Avenue use?
Its 2024 site energy-use intensity was 65.6 kBtu/ft² (108.9 kBtu/ft² source) across 25,927 sq ft, including 178,338 kWh of electricity and 3,870 therms of natural gas.
What are 4107 Connecticut Avenue's carbon emissions?
4107 Connecticut Avenue reported 126 tCO₂e of greenhouse-gas emissions (4.9 kgCO₂e/ft²) for 2024.
Where is 4107 Connecticut Avenue?
4107 Connecticut Avenue is at 4107 Connecticut Avenue NW, in Washington, DC 20008. Its coordinates are 38.94259, -77.06209 (latitude, longitude), as published in the Building Energy Benchmarking file.
How big is 4107 Connecticut Avenue and when was it built?
4107 Connecticut Avenue has 25,927 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1957 as its year built. It is classed as multifamily housing.
Is 4107 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, “4107 Connecticut Avenue, Washington, DC — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/washington-dc/4107-connecticut-avenue-043b2d49 (data as of July 9, 2026).