Avenel Business Park Building 201& 203
Office in Montgomery County, MD · 201 & 203 Perry Parkway · 20877
At a glance
Avenel Business Park Building 201& 203 is a 41,043-square-foot office building at 201 & 203 Perry Parkway in Montgomery County, Maryland, built in 1981. In its 2024 Montgomery County benchmarking disclosure it reported an ENERGY STAR score of 91 out of 100 (grade A), a site energy-use intensity of 18.7 kBtu/ft² and 67 tCO₂e of greenhouse-gas emissions. That score is higher than 90% 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 | 91 (band A) |
| Site EUI | 18.7 kBtu/ft² |
| Source EUI | 52.3 kBtu/ft² |
| GHG emissions | 67 tCO₂e |
| GHG intensity | — |
| Electricity | 224,542 kWh |
| Natural gas | 0 therms |
| Gross floor area | 41,043 sq ft |
| Source record | montgomery_county:4994830:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 91 | +4 | 18.7 kBtu/ft² | 67 tCO₂e |
| 2023 | 87 | 20.7 kBtu/ft² | 77 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
- 201 & 203 Perry Parkway
- State
- Maryland
- ZIP
- 20877
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 Avenel Business Park Building 201& 203 compare with other office buildings in Montgomery County?
The latest disclosures cover 414 office buildings in Montgomery County, out of 1,766 buildings citywide. Avenel Business Park Building 201& 203's ENERGY STAR score of 91 compares with an average of 63 across the 325 that report a score; it scores higher than 90% of them and lower than 8%. Its site EUI of 18.7 kBtu/ft² is about 72% below the average of 66.5 kBtu/ft² — it uses less energy per square foot than the typical building in that group.
At 41,043 sq ft, it is about 69% below the average floor area of 132,356 sq ft for those buildings. It was built in 1981, 6 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 Avenel Business Park Building 201& 203's energy performance changed over time?
BuildingCensus holds 2 Montgomery County disclosures for Avenel Business Park Building 201& 203, covering report years 2023–2024. Its ENERGY STAR score went from 87 in 2023 to 91 in 2024 (+4 points). Site EUI moved from 20.7 kBtu/ft² (2023) to 18.7 kBtu/ft² (2024), a 10% decrease. Reported emissions went from 77 tCO₂e to 67 tCO₂e over the same span (down 12%).
What does an ENERGY STAR score of 91 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 91 means the building performs better than about 91% of its national peers. BuildingCensus bands the score into report-card grades; 91 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. Avenel Business Park Building 201& 203's 18.7 kBtu/ft² across 41,043 sq ft works out to about 0.8 billion Btu (225 MWh-equivalent) in 2024. Its source EUI of 52.3 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 224,542 kWh of electricity and 0 therms of natural gas for the year.
Which law requires Avenel Business Park Building 201& 203 to report its energy use?
Avenel Business Park Building 201& 203 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:4994830:2024). 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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- Cancelled - Pdc Parklawn· 40,449 sq ft · EUI 48.6 kBtu/ft²
- 101 Lakeforest· 40,377 sq ft · score 81 (B)
- Bl Blackwell Company Llc· 39,198 sq ft · score 59 (C)
- Diamond Office Center· 39,175 sq ft · score 13 (D)
- 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 Avenel Business Park Building 201& 203's energy grade?
Avenel Business Park Building 201& 203 scores 91 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 Avenel Business Park Building 201& 203 use?
Its 2024 site energy-use intensity was 18.7 kBtu/ft² (52.3 kBtu/ft² source) across 41,043 sq ft, including 224,542 kWh of electricity and 0 therms of natural gas.
What are Avenel Business Park Building 201& 203's carbon emissions?
Avenel Business Park Building 201& 203 reported 67 tCO₂e of greenhouse-gas emissions for 2024.
Where is Avenel Business Park Building 201& 203?
Avenel Business Park Building 201& 203 is at 201 & 203 Perry Parkway, in Montgomery County, Maryland 20877.
How big is Avenel Business Park Building 201& 203 and when was it built?
Avenel Business Park Building 201& 203 has 41,043 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1981 as its year built. It is classed as office.
Is Avenel Business Park Building 201& 203 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, “Avenel Business Park Building 201& 203, Montgomery County, Maryland — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/montgomery-county/avenel-business-park-building-201-203-ac67e3bb (data as of October 2, 2026).