Engine Company #31
Other - Public Services in Washington, DC, DC · 4930 CONNECTICUT AVENUE NW · 20008
At a glance
Engine Company #31 is a 11,934-square-foot other - public services building at 4930 CONNECTICUT AVENUE NW in Washington, DC, built in 1930. In its 2017 Washington, DC benchmarking disclosure it reported a site energy-use intensity of 44.4 kBtu/ft² and 50 tCO₂e of greenhouse-gas emissions.
Clean and Affordable Energy Act / BEPS · reporting year 2017
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | — |
| Site EUI | 44.4 kBtu/ft² |
| Source EUI | 111.3 kBtu/ft² |
| GHG emissions | 50 tCO₂e |
| GHG intensity | 4.1 kgCO₂e/ft² |
| Electricity | 108,250 kWh |
| Natural gas | 1,608 therms |
| Gross floor area | 11,934 sq ft |
| Source record | dc:PM3412484:2017 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2017latest | — | 44.4 kBtu/ft² | 50 tCO₂e | |
| 2016 | — | 66.9 kBtu/ft² | 65 tCO₂e | |
| 2015 | — | 74.3 kBtu/ft² | 70 tCO₂e | |
| 2014 | — | 84.0 kBtu/ft² | 74 tCO₂e | |
| 2013 | — | 84.0 kBtu/ft² | 75 tCO₂e | |
| 2012 | — | 74.1 kBtu/ft² | 69 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
GOVERNMENT OF THE DISTRICT OF COLUMBIA DEPARTMENT OF GENERAL SERVICES
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Location
- Address
- 4930 CONNECTICUT AVENUE NW
- City
- Washington, DC
- State
- District of Columbia
- ZIP
- 20008
- Coordinates
- 38.95418, -77.06996
Within ~1 km
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See also: most efficient in Washington, DC · biggest emitters
How does Engine Company #31 compare with other other - public services buildings in Washington, DC?
The latest disclosures cover 43 other - public services buildings in Washington, DC, out of 6,870 buildings citywide. Its site EUI of 44.4 kBtu/ft² is about 39% below the average of 73.2 kBtu/ft² — it uses less energy per square foot than the typical building in that group. Its emissions intensity of 4.1 kgCO₂e/ft² is about 29% below the group average of 5.8 kgCO₂e/ft².
At 11,934 sq ft, it is about 82% below the average floor area of 66,114 sq ft for those buildings. It was built in 1930, 25 years earlier than the group's average year built (1956). Across all 24 jurisdictions BuildingCensus covers, the 346 other - public services buildings average an ENERGY STAR score of 34 and a site EUI of 83.8 kBtu/ft².
How has Engine Company #31's energy performance changed over time?
BuildingCensus holds 6 Washington, DC disclosures for Engine Company #31, covering report years 2012–2017. Site EUI moved from 74.1 kBtu/ft² (2012) to 44.4 kBtu/ft² (2017), a 40% decrease. Reported emissions went from 69 tCO₂e to 50 tCO₂e over the same span (down 29%).
What does a site EUI of 44.4 kBtu/ft² mean?
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. Engine Company #31's 44.4 kBtu/ft² across 11,934 sq ft works out to about 0.5 billion Btu (155 MWh-equivalent) in 2017. Its source EUI of 111.3 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 108,250 kWh of electricity and 1,608 therms of natural gas for the year.
Which law requires Engine Company #31 to report its energy use?
Engine Company #31 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 2017 disclosure (source record dc:PM3412484:2017). 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 other - public services buildings in Washington, DC
- Fueling Fleet Storage· 11,000 sq ft · EUI 62.7 kBtu/ft²
- Engine Company #9· 10,476 sq ft · EUI 102.7 kBtu/ft²
- Engine Company #25· 10,248 sq ft · EUI 83.1 kBtu/ft²
- Engine Company #8· 10,080 sq ft · EUI 80.1 kBtu/ft²
- Other - Public Services buildings in Washington, DC· 43 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 Engine Company #31's energy grade?
Engine Company #31 did not report an ENERGY STAR score in its 2017 disclosure, but its site energy-use intensity was 44.4 kBtu/ft².
How much energy does Engine Company #31 use?
Its 2017 site energy-use intensity was 44.4 kBtu/ft² (111.3 kBtu/ft² source) across 11,934 sq ft, including 108,250 kWh of electricity and 1,608 therms of natural gas.
What are Engine Company #31's carbon emissions?
Engine Company #31 reported 50 tCO₂e of greenhouse-gas emissions (4.1 kgCO₂e/ft²) for 2017.
Where is Engine Company #31?
Engine Company #31 is at 4930 CONNECTICUT AVENUE NW, in Washington, DC 20008. Its coordinates are 38.95418, -77.06996 (latitude, longitude), as published in the Building Energy Benchmarking file.
How big is Engine Company #31 and when was it built?
Engine Company #31 has 11,934 sq ft of gross floor area, as reported in its 2017 disclosure. The disclosure lists 1930 as its year built. It is classed as other - public services.
Is Engine Company #31 covered by the Clean and Affordable Energy Act / BEPS?
Yes — it appears in the 2017 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, “Engine Company #31, Washington, DC — 2017 benchmarking disclosure”, https://buildingcensus.com/buildings/washington-dc/engine-company-31-d53e5558 (data as of July 9, 2026).