Md5011 - Rockville Regional Office
Office in Montgomery County, MD · 2101 E Jefferson St · 20852
At a glance
Md5011 - Rockville Regional Office is a 264,867-square-foot office building at 2101 E Jefferson St in Montgomery County, Maryland, built in 1983. In its 2024 Montgomery County benchmarking disclosure it reported an ENERGY STAR score of 88 out of 100 (grade A), a site energy-use intensity of 43.8 kBtu/ft² and 1,019 tCO₂e of greenhouse-gas emissions. That score is higher than 82% 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 | 88 (band A) |
| Site EUI | 43.8 kBtu/ft² |
| Source EUI | 122.8 kBtu/ft² |
| GHG emissions | 1,019 tCO₂e |
| GHG intensity | — |
| Electricity | 3,403,912 kWh |
| Natural gas | 0 therms |
| Gross floor area | 264,867 sq ft |
| Source record | montgomery_county:2551194:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 88 | +9 | 43.8 kBtu/ft² | 1,019 tCO₂e |
| 2023 | 79 | 53.5 kBtu/ft² | 1,274 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
- 2101 E Jefferson St
- State
- Maryland
- ZIP
- 20852
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 Md5011 - Rockville Regional Office compare with other office buildings in Montgomery County?
The latest disclosures cover 414 office buildings in Montgomery County, out of 1,766 buildings citywide. Md5011 - Rockville Regional Office's ENERGY STAR score of 88 compares with an average of 63 across the 325 that report a score; it scores higher than 82% of them and lower than 15%. Its site EUI of 43.8 kBtu/ft² is about 34% below the average of 66.5 kBtu/ft² — it uses less energy per square foot than the typical building in that group.
At 264,867 sq ft, it is about twice the average floor area of 132,356 sq ft for those buildings. It was built in 1983, 4 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 Md5011 - Rockville Regional Office's energy performance changed over time?
BuildingCensus holds 2 Montgomery County disclosures for Md5011 - Rockville Regional Office, covering report years 2023–2024. Its ENERGY STAR score went from 79 in 2023 to 88 in 2024 (+9 points). Site EUI moved from 53.5 kBtu/ft² (2023) to 43.8 kBtu/ft² (2024), a 18% decrease. Reported emissions went from 1,274 tCO₂e to 1,019 tCO₂e over the same span (down 20%).
What does an ENERGY STAR score of 88 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 88 means the building performs better than about 88% of its national peers. BuildingCensus bands the score into report-card grades; 88 falls in band A — high performer (85–100). Scores of 75 or higher meet the threshold for ENERGY STAR certification; certification itself is a separate, verified application that the disclosure does not record. 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. Md5011 - Rockville Regional Office's 43.8 kBtu/ft² across 264,867 sq ft works out to about 11.6 billion Btu (3,400 MWh-equivalent) in 2024. Its source EUI of 122.8 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 3,403,912 kWh of electricity and 0 therms of natural gas for the year.
Which law requires Md5011 - Rockville Regional Office to report its energy use?
Md5011 - Rockville Regional Office 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:2551194:2024). 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
- Two Wisconsin Circle· 263,443 sq ft · score 90 (A)
- Wisconsin-7101· 261,170 sq ft · score 84 (B)
- 51 Monroe· 256,119 sq ft · score 84 (B)
- 8757 G.A., Llc· 252,248 sq ft · score 82 (B)
- 4500 East West Highway· 252,156 sq ft · score 88 (A)
- 6701 Rockledge Drive - Bethesda· 251,902 sq ft · score 75 (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 Md5011 - Rockville Regional Office's energy grade?
Md5011 - Rockville Regional Office scores 88 out of 100 on ENERGY STAR — band A, high performer (85–100) — in its 2024 Montgomery County disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does Md5011 - Rockville Regional Office use?
Its 2024 site energy-use intensity was 43.8 kBtu/ft² (122.8 kBtu/ft² source) across 264,867 sq ft, including 3,403,912 kWh of electricity and 0 therms of natural gas.
What are Md5011 - Rockville Regional Office's carbon emissions?
Md5011 - Rockville Regional Office reported 1,019 tCO₂e of greenhouse-gas emissions for 2024.
Where is Md5011 - Rockville Regional Office?
Md5011 - Rockville Regional Office is at 2101 E Jefferson St, in Montgomery County, Maryland 20852.
How big is Md5011 - Rockville Regional Office and when was it built?
Md5011 - Rockville Regional Office has 264,867 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1983 as its year built. It is classed as office.
Is Md5011 - Rockville Regional Office 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, “Md5011 - Rockville Regional Office, Montgomery County, Maryland — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/montgomery-county/md5011-rockville-regional-office-c1a4ce0c (data as of October 2, 2026).