3905 National Dr
Office in Montgomery County, MD · 20866
At a glance
3905 National Dr is a 47,630-square-foot office building in Montgomery County, Maryland, built in 1988. In its 2024 Montgomery County benchmarking disclosure it reported an ENERGY STAR score of 46 out of 100 (grade D), a site energy-use intensity of 68.5 kBtu/ft² and 286 tCO₂e of greenhouse-gas emissions. That score is higher than 23% 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 | 46 (band D) |
| Site EUI | 68.5 kBtu/ft² |
| Source EUI | 191.7 kBtu/ft² |
| GHG emissions | 286 tCO₂e |
| GHG intensity | — |
| Electricity | 955,583 kWh |
| Natural gas | 0 therms |
| Gross floor area | 47,630 sq ft |
| Source record | montgomery_county:11228373:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 46 | -4 | 68.5 kBtu/ft² | 286 tCO₂e |
| 2023 | 50 | 64.2 kBtu/ft² | 275 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
- 3905 National Dr
- State
- Maryland
- ZIP
- 20866
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 3905 National Dr compare with other office buildings in Montgomery County?
The latest disclosures cover 414 office buildings in Montgomery County, out of 1,766 buildings citywide. 3905 National Dr's ENERGY STAR score of 46 compares with an average of 63 across the 325 that report a score; it scores higher than 23% of them and lower than 75%. Its site EUI of 68.5 kBtu/ft² is roughly in line with the average of 66.5 kBtu/ft².
At 47,630 sq ft, it is about 64% below the average floor area of 132,356 sq ft for those buildings. Its 1988 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 3905 National Dr's energy performance changed over time?
BuildingCensus holds 2 Montgomery County disclosures for 3905 National Dr, covering report years 2023–2024. Its ENERGY STAR score went from 50 in 2023 to 46 in 2024 (-4 points); its best year on file was 2023, at 50. Site EUI moved from 64.2 kBtu/ft² (2023) to 68.5 kBtu/ft² (2024), an 7% increase. Reported emissions went from 275 tCO₂e to 286 tCO₂e over the same span (up 4%).
What does an ENERGY STAR score of 46 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 46 means the building performs better than about 46% of its national peers. BuildingCensus bands the score into report-card grades; 46 falls in band D — lowest band (1–54). It sits 29 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. 3905 National Dr's 68.5 kBtu/ft² across 47,630 sq ft works out to about 3.3 billion Btu (956 MWh-equivalent) in 2024. Its source EUI of 191.7 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 955,583 kWh of electricity and 0 therms of natural gas for the year.
Which law requires 3905 National Dr to report its energy use?
3905 National Dr 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:11228373:2024). 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
- Singleton Electric Co., Inc.· 47,000 sq ft · score 51 (D)
- Copy Of 6900 Wisconsin - The Bradley Building· 46,865 sq ft · score 68 (C)
- 1500 East Gude Drive· 46,859 sq ft · EUI 52.4 kBtu/ft²
- Highland Park Building· 46,800 sq ft · score 50 (D)
- 9640 Medical Center· 46,267 sq ft · score 59 (C)
- Pdc Lexington· 46,188 sq ft · EUI 37.1 kBtu/ft²
- 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 3905 National Dr's energy grade?
3905 National Dr scores 46 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 3905 National Dr use?
Its 2024 site energy-use intensity was 68.5 kBtu/ft² (191.7 kBtu/ft² source) across 47,630 sq ft, including 955,583 kWh of electricity and 0 therms of natural gas.
What are 3905 National Dr's carbon emissions?
3905 National Dr reported 286 tCO₂e of greenhouse-gas emissions for 2024.
Where is 3905 National Dr?
3905 National Dr is in Montgomery County, Maryland 20866.
How big is 3905 National Dr and when was it built?
3905 National Dr has 47,630 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1988 as its year built. It is classed as office.
Is 3905 National Dr 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, “3905 National Dr, Montgomery County, Maryland — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/montgomery-county/3905-national-dr-eb5bc7b1 (data as of October 2, 2026).