414 - Rockville Plaza
Office in Montgomery County, MD · 414 Hungerford Dr · 20850
At a glance
414 - Rockville Plaza is a 54,373-square-foot office building at 414 Hungerford Dr in Montgomery County, Maryland, built in 1968. In its 2024 Montgomery County benchmarking disclosure it reported a site energy-use intensity of 42.3 kBtu/ft² and 202 tCO₂e of greenhouse-gas emissions.
Benchmarking Law (Bill 2-14) / BEPS (Bill 16-21) · reporting year 2024
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | — |
| Site EUI | 42.3 kBtu/ft² |
| Source EUI | 118.4 kBtu/ft² |
| GHG emissions | 202 tCO₂e |
| GHG intensity | — |
| Electricity | 674,007 kWh |
| Natural gas | 0 therms |
| Gross floor area | 54,373 sq ft |
| Source record | montgomery_county:27479839:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | — | 42.3 kBtu/ft² | 202 tCO₂e | |
| 2023 | — | 43.0 kBtu/ft² | 210 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
- 414 Hungerford Dr
- State
- Maryland
- ZIP
- 20850
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 414 - Rockville Plaza compare with other office buildings in Montgomery County?
The latest disclosures cover 414 office buildings in Montgomery County, out of 1,766 buildings citywide. Its site EUI of 42.3 kBtu/ft² is about 36% below the average of 66.5 kBtu/ft² — it uses less energy per square foot than the typical building in that group.
At 54,373 sq ft, it is about 59% below the average floor area of 132,356 sq ft for those buildings. It was built in 1968, 19 years earlier 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 414 - Rockville Plaza's energy performance changed over time?
BuildingCensus holds 2 Montgomery County disclosures for 414 - Rockville Plaza, covering report years 2023–2024. Site EUI moved from 43.0 kBtu/ft² (2023) to 42.3 kBtu/ft² (2024), a 2% decrease. Reported emissions went from 210 tCO₂e to 202 tCO₂e over the same span (down 4%).
What does a site EUI of 42.3 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. 414 - Rockville Plaza's 42.3 kBtu/ft² across 54,373 sq ft works out to about 2.3 billion Btu (674 MWh-equivalent) in 2024. Its source EUI of 118.4 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 674,007 kWh of electricity and 0 therms of natural gas for the year.
Which law requires 414 - Rockville Plaza to report its energy use?
414 - Rockville Plaza 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:27479839:2024). 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
- 801 Thompson Avenue· 54,356 sq ft · score 35 (D)
- 45 West Watkins Mill Road· 54,270 sq ft · EUI 330.9 kBtu/ft²
- Century Technology Campus· 54,016 sq ft · EUI 395.6 kBtu/ft²
- 22 Firstfield Road· 54,000 sq ft · score 24 (D)
- Eb Clarksburg Llc (22516)· 53,521 sq ft
- 4401 East-West Hwy: 4401 East-West Highway· 53,110 sq ft · score 82 (B)
- Office buildings in Montgomery County· 414 benchmarked
- All Montgomery County benchmarked buildings· Benchmarking Law (Bill 2-14) / BEPS (Bill 16-21)
- Most efficient large buildings in Montgomery County
- Least efficient large buildings in Montgomery County
- Biggest emitters in Montgomery County
Frequently asked questions
What is 414 - Rockville Plaza's energy grade?
414 - Rockville Plaza did not report an ENERGY STAR score in its 2024 disclosure, but its site energy-use intensity was 42.3 kBtu/ft².
How much energy does 414 - Rockville Plaza use?
Its 2024 site energy-use intensity was 42.3 kBtu/ft² (118.4 kBtu/ft² source) across 54,373 sq ft, including 674,007 kWh of electricity and 0 therms of natural gas.
What are 414 - Rockville Plaza's carbon emissions?
414 - Rockville Plaza reported 202 tCO₂e of greenhouse-gas emissions for 2024.
Where is 414 - Rockville Plaza?
414 - Rockville Plaza is at 414 Hungerford Dr, in Montgomery County, Maryland 20850.
How big is 414 - Rockville Plaza and when was it built?
414 - Rockville Plaza has 54,373 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1968 as its year built. It is classed as office.
Is 414 - Rockville Plaza 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, “414 - Rockville Plaza, Montgomery County, Maryland — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/montgomery-county/414-rockville-plaza-1ea4107f (data as of October 2, 2026).