Hungerford Office Building
Office in Montgomery County, MD · 401 Hungerford Dr · 20850
At a glance
Hungerford Office Building is a 82,888-square-foot office building at 401 Hungerford Dr in Montgomery County, Maryland, built in 1987. In its 2024 Montgomery County benchmarking disclosure it reported an ENERGY STAR score of 80 out of 100 (grade B), a site energy-use intensity of 50.0 kBtu/ft² and 317 tCO₂e of greenhouse-gas emissions. That score is higher than 67% 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 | 80 (band B) |
| Site EUI | 50.0 kBtu/ft² |
| Source EUI | 111.5 kBtu/ft² |
| GHG emissions | 317 tCO₂e |
| GHG intensity | — |
| Electricity | 819,689 kWh |
| Natural gas | 13,460 therms |
| Gross floor area | 82,888 sq ft |
| Source record | montgomery_county:5245082:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 80 | +9 | 50.0 kBtu/ft² | 317 tCO₂e |
| 2023 | 71 | 59.8 kBtu/ft² | 372 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
- 401 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 Hungerford Office Building compare with other office buildings in Montgomery County?
The latest disclosures cover 414 office buildings in Montgomery County, out of 1,766 buildings citywide. Hungerford Office Building's ENERGY STAR score of 80 compares with an average of 63 across the 325 that report a score; it scores higher than 67% of them and lower than 31%. Its site EUI of 50.0 kBtu/ft² is about 25% below the average of 66.5 kBtu/ft² — it uses less energy per square foot than the typical building in that group.
At 82,888 sq ft, it is about 37% below the average floor area of 132,356 sq ft for those buildings. Its 1987 construction date is close to 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 Hungerford Office Building's energy performance changed over time?
BuildingCensus holds 2 Montgomery County disclosures for Hungerford Office Building, covering report years 2023–2024. Its ENERGY STAR score went from 71 in 2023 to 80 in 2024 (+9 points). Site EUI moved from 59.8 kBtu/ft² (2023) to 50.0 kBtu/ft² (2024), a 16% decrease. Reported emissions went from 372 tCO₂e to 317 tCO₂e over the same span (down 15%).
What does an ENERGY STAR score of 80 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 80 means the building performs better than about 80% of its national peers. BuildingCensus bands the score into report-card grades; 80 falls in band B — above median (70–84). 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. Hungerford Office Building's 50.0 kBtu/ft² across 82,888 sq ft works out to about 4.1 billion Btu (1,215 MWh-equivalent) in 2024. Its source EUI of 111.5 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 819,689 kWh of electricity and 13,460 therms of natural gas for the year.
Which law requires Hungerford Office Building to report its energy use?
Hungerford Office Building 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:5245082:2024). 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
- Avenel Business Park Buildings 205-207· 82,676 sq ft · EUI 164.5 kBtu/ft²
- Avenel Business Park Buildings 200-202· 81,729 sq ft · EUI 36.5 kBtu/ft²
- 20400 Century Blvd· 81,007 sq ft · score 1 (D)
- Decoverly· 80,670 sq ft · score 39 (D)
- 8555 16Th Street: Summit Building· 80,563 sq ft · score 72 (B)
- 900 Clopper Rd· 80,538 sq ft · score 56 (C)
- 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 Hungerford Office Building's energy grade?
Hungerford Office Building scores 80 out of 100 on ENERGY STAR — band B, above median (70–84) — in its 2024 Montgomery County disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does Hungerford Office Building use?
Its 2024 site energy-use intensity was 50.0 kBtu/ft² (111.5 kBtu/ft² source) across 82,888 sq ft, including 819,689 kWh of electricity and 13,460 therms of natural gas.
What are Hungerford Office Building's carbon emissions?
Hungerford Office Building reported 317 tCO₂e of greenhouse-gas emissions for 2024.
Where is Hungerford Office Building?
Hungerford Office Building is at 401 Hungerford Dr, in Montgomery County, Maryland 20850.
How big is Hungerford Office Building and when was it built?
Hungerford Office Building has 82,888 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1987 as its year built. It is classed as office.
Is Hungerford Office Building 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, “Hungerford Office Building, Montgomery County, Maryland — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/montgomery-county/hungerford-office-building-af7d1e0b (data as of October 2, 2026).