Saint Marks Parish Vestry
Worship Facility in Washington, DC, DC · 301 A Street, SE · 20003
At a glance
Saint Marks Parish Vestry is a 34,576-square-foot worship facility at 301 A Street, SE in Washington, DC, built in 1880. In its 2024 Washington, DC benchmarking disclosure it reported an ENERGY STAR score of 55 out of 100 (grade C), a site energy-use intensity of 34.3 kBtu/ft² and 77 tCO₂e of greenhouse-gas emissions. That score is higher than 65% of the 72 scored worship facility buildings in Washington, DC.
Clean and Affordable Energy Act / BEPS · reporting year 2024
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 55 (band C) |
| Site EUI | 34.3 kBtu/ft² |
| Source EUI | 60.4 kBtu/ft² |
| GHG emissions | 77 tCO₂e |
| GHG intensity | 2.2 kgCO₂e/ft² |
| Electricity | 141,340 kWh |
| Natural gas | 6,571 therms |
| Water use | 201 kgal |
| Gross floor area | 34,576 sq ft |
| Source record | dc:PM28369633:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 55 | 34.3 kBtu/ft² | 77 tCO₂e | |
| 2023 | — | — | — | |
| 2022 | 58 | 33.5 kBtu/ft² | 87 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
SAINT MARKS PARISH VESTRY
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Location
- Address
- 301 A Street, SE
- City
- Washington, DC
- State
- District of Columbia
- ZIP
- 20003
- Coordinates
- 38.88850, -77.00179
Within ~1 km
Nearby benchmarked buildings
- Hall of the Statesscore 71
Office · 661,116 sq ft
- Eastern Market - Campusscore 52
Mixed Use Property · 432,945 sq ft
Other/Specialty Hospital · 159,722 sq ft
- 700 Constitutionscore 74
Multifamily Housing · 129,085 sq ft
- Stuart Hobson Middle Schoolscore 46
K-12 School · 114,724 sq ft
- Stuart-Hobson Middle Schoolscore 29
K-12 School · 105,900 sq ft
See also: most efficient in Washington, DC · biggest emitters
How does Saint Marks Parish Vestry compare with other worship facility buildings in Washington, DC?
The latest disclosures cover 88 worship facility buildings in Washington, DC, out of 6,870 buildings citywide. Saint Marks Parish Vestry's ENERGY STAR score of 55 compares with an average of 43 across the 72 that report a score; it scores higher than 65% of them and lower than 33%. Its site EUI of 34.3 kBtu/ft² is about 34% below the average of 51.9 kBtu/ft² — it uses less energy per square foot than the typical building in that group. Its emissions intensity of 2.2 kgCO₂e/ft² is about 38% below the group average of 3.6 kgCO₂e/ft².
At 34,576 sq ft, it is about 30% below the average floor area of 49,290 sq ft for those buildings. It was built in 1880, 54 years earlier than the group's average year built (1934). Across all 24 jurisdictions BuildingCensus covers, the 1,035 worship facility buildings average an ENERGY STAR score of 50 and a site EUI of 47.8 kBtu/ft².
How has Saint Marks Parish Vestry's energy performance changed over time?
BuildingCensus holds 3 Washington, DC disclosures for Saint Marks Parish Vestry, covering report years 2022–2024. Its ENERGY STAR score went from 58 in 2022 to 55 in 2024 (-3 points); its best year on file was 2022, at 58. Site EUI moved from 33.5 kBtu/ft² (2022) to 34.3 kBtu/ft² (2024), an 2% increase. Reported emissions went from 87 tCO₂e to 77 tCO₂e over the same span (down 11%).
What does an ENERGY STAR score of 55 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 55 means the building performs better than about 55% of its national peers. BuildingCensus bands the score into report-card grades; 55 falls in band C — below median (55–69). It sits 20 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. Saint Marks Parish Vestry's 34.3 kBtu/ft² across 34,576 sq ft works out to about 1.2 billion Btu (348 MWh-equivalent) in 2024. Its source EUI of 60.4 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 141,340 kWh of electricity, 6,571 therms of natural gas and 201 thousand gallons of water for the year.
Which law requires Saint Marks Parish Vestry to report its energy use?
Saint Marks Parish Vestry 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:PM28369633:2024). 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 worship facility buildings in Washington, DC
- Albright Memorial United Methodist Church· 34,286 sq ft
- Takoma Park Baptist Church· 33,432 sq ft · score 49 (D)
- Assumption/Center City Schools· 33,331 sq ft · score 38 (D)
- Ohev Sholom Congregation· 33,231 sq ft · score 64 (C)
- Northminster Presbyterian Church· 31,235 sq ft · score 67 (C)
- St. Ann Catholic Church· 30,879 sq ft · score 59 (C)
- Worship Facility buildings in Washington, DC· 88 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 Saint Marks Parish Vestry's energy grade?
Saint Marks Parish Vestry scores 55 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 Saint Marks Parish Vestry use?
Its 2024 site energy-use intensity was 34.3 kBtu/ft² (60.4 kBtu/ft² source) across 34,576 sq ft, including 141,340 kWh of electricity and 6,571 therms of natural gas.
What are Saint Marks Parish Vestry's carbon emissions?
Saint Marks Parish Vestry reported 77 tCO₂e of greenhouse-gas emissions (2.2 kgCO₂e/ft²) for 2024.
Where is Saint Marks Parish Vestry?
Saint Marks Parish Vestry is at 301 A Street, SE, in Washington, DC 20003. Its coordinates are 38.88850, -77.00179 (latitude, longitude), as published in the Building Energy Benchmarking file.
How big is Saint Marks Parish Vestry and when was it built?
Saint Marks Parish Vestry has 34,576 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1880 as its year built. It is classed as worship facility.
Is Saint Marks Parish Vestry 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, “Saint Marks Parish Vestry, Washington, DC — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/washington-dc/saint-marks-parish-vestry-9fc8b634 (data as of July 9, 2026).