Park Potomac Bldg. E (Rk60,Rp90)
Office in Montgomery County, MD · 12505 Park Potomac Ave · 20854
At a glance
Park Potomac Bldg. E (Rk60,Rp90) is a 179,026-square-foot office building at 12505 Park Potomac Ave in Montgomery County, Maryland, built in 2009. In its 2024 Montgomery County benchmarking disclosure it reported an ENERGY STAR score of 47 out of 100 (grade D), a site energy-use intensity of 84.5 kBtu/ft² and 1,322 tCO₂e of greenhouse-gas emissions. That score is higher than 25% of the 325 scored office buildings in Montgomery County.
Benchmarking Law (Bill 2-14) / BEPS (Bill 16-21) · reporting year 2024
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 47 (band D) |
| Site EUI | 84.5 kBtu/ft² |
| Source EUI | 235.1 kBtu/ft² |
| GHG emissions | 1,322 tCO₂e |
| GHG intensity | — |
| Electricity | 4,388,493 kWh |
| Natural gas | 1,471 therms |
| Gross floor area | 179,026 sq ft |
| Source record | montgomery_county:2309943:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 47 | -1 | 84.5 kBtu/ft² | 1,322 tCO₂e |
| 2023 | 48 | 83.3 kBtu/ft² | 1,327 tCO₂e |
Compliance context
Benchmarking Law (Bill 2-14) / BEPS (Bill 16-21)
Montgomery County's BEPS (Bill 16-21; regulations approved in 2025) sets declining site-EUI standards for buildings of 25,000+ sq ft, with interim and then final standards later this decade and into the 2030s depending on building type.
Ownership
No owning organisation shown. Names of private individuals in the disclosure are not published here.
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Location
- Address
- 12505 Park Potomac Ave
- State
- Maryland
- ZIP
- 20854
Within ~1 km
Nearby benchmarked buildings
This source publishes no coordinates, so nearby buildings can't be resolved yet.
See also: most efficient in Montgomery County · biggest emitters
How does Park Potomac Bldg. E (Rk60,Rp90) compare with other office buildings in Montgomery County?
The latest disclosures cover 414 office buildings in Montgomery County, out of 1,766 buildings citywide. Park Potomac Bldg. E (Rk60,Rp90)'s ENERGY STAR score of 47 compares with an average of 63 across the 325 that report a score; it scores higher than 25% of them and lower than 74%. Its site EUI of 84.5 kBtu/ft² is about 27% above the average of 66.5 kBtu/ft² — it uses more energy per square foot than the typical building in that group.
At 179,026 sq ft, it is about 35% above the average floor area of 132,356 sq ft for those buildings. It was built in 2009, 22 years later than the group's average year built (1987). 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 Park Potomac Bldg. E (Rk60,Rp90)'s energy performance changed over time?
BuildingCensus holds 2 Montgomery County disclosures for Park Potomac Bldg. E (Rk60,Rp90), covering report years 2023–2024. Its ENERGY STAR score went from 48 in 2023 to 47 in 2024 (-1 points); its best year on file was 2023, at 48. Site EUI moved from 83.3 kBtu/ft² (2023) to 84.5 kBtu/ft² (2024), an 1% increase. Reported emissions went from 1,327 tCO₂e to 1,322 tCO₂e over the same span (down 0%).
What does an ENERGY STAR score of 47 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 47 means the building performs better than about 47% of its national peers. BuildingCensus bands the score into report-card grades; 47 falls in band D — lowest band (1–54). It sits 28 points below 75, the threshold for ENERGY STAR certification. In Montgomery County, 53% 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. Park Potomac Bldg. E (Rk60,Rp90)'s 84.5 kBtu/ft² across 179,026 sq ft works out to about 15.1 billion Btu (4,433 MWh-equivalent) in 2024. Its source EUI of 235.1 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 4,388,493 kWh of electricity and 1,471 therms of natural gas for the year.
Which law requires Park Potomac Bldg. E (Rk60,Rp90) to report its energy use?
Park Potomac Bldg. E (Rk60,Rp90) reports under the Benchmarking Law (Bill 2-14) / BEPS (Bill 16-21), the legal basis of Montgomery County's Commercial 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 montgomery_county:2309943:2024). Montgomery County's BEPS (Bill 16-21; regulations approved in 2025) sets declining site-EUI standards for buildings of 25,000+ sq ft, with interim and then final standards later this decade and into the 2030s depending on building type.
More office buildings in Montgomery County
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- One Bethesda Center· 171,475 sq ft · score 87 (A)
- 700 Quince Orchard Road· 171,239 sq ft · EUI 219.2 kBtu/ft²
- Ssmp-101· 170,538 sq ft · score 74 (B)
- Office buildings in Montgomery County· 414 benchmarked
- All Montgomery County benchmarked buildings· Benchmarking Law (Bill 2-14) / BEPS (Bill 16-21)
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- Least efficient large buildings in Montgomery County
- Biggest emitters in Montgomery County
Frequently asked questions
What is Park Potomac Bldg. E (Rk60,Rp90)'s energy grade?
Park Potomac Bldg. E (Rk60,Rp90) scores 47 out of 100 on ENERGY STAR — band D, lowest band (1–54) — in its 2024 Montgomery County disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does Park Potomac Bldg. E (Rk60,Rp90) use?
Its 2024 site energy-use intensity was 84.5 kBtu/ft² (235.1 kBtu/ft² source) across 179,026 sq ft, including 4,388,493 kWh of electricity and 1,471 therms of natural gas.
What are Park Potomac Bldg. E (Rk60,Rp90)'s carbon emissions?
Park Potomac Bldg. E (Rk60,Rp90) reported 1,322 tCO₂e of greenhouse-gas emissions for 2024.
Where is Park Potomac Bldg. E (Rk60,Rp90)?
Park Potomac Bldg. E (Rk60,Rp90) is at 12505 Park Potomac Ave, in Montgomery County, Maryland 20854.
How big is Park Potomac Bldg. E (Rk60,Rp90) and when was it built?
Park Potomac Bldg. E (Rk60,Rp90) has 179,026 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 2009 as its year built. It is classed as office.
Is Park Potomac Bldg. E (Rk60,Rp90) covered by the Benchmarking Law (Bill 2-14) / BEPS (Bill 16-21)?
Yes — it appears in the 2024 Commercial Building Energy Benchmarking disclosure, which lists the buildings reporting under the Benchmarking Law (Bill 2-14) / BEPS (Bill 16-21).
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About this data
Source: Commercial Building Energy Benchmarking (Benchmarking Law (Bill 2-14) / BEPS (Bill 16-21)), as published October 2, 2026. See the methodology for how records are matched, cleaned and scored.
Cite as: BuildingCensus, “Park Potomac Bldg. E (Rk60,Rp90), Montgomery County, Maryland — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/montgomery-county/park-potomac-bldg-e-rk60-rp90-b68bae42 (data as of October 2, 2026).