Bethesda Towers - West
Office in Montgomery County, MD · 4350 East West Highway · 20814
At a glance
Bethesda Towers - West is a 195,509-square-foot office building at 4350 East West Highway in Montgomery County, Maryland, built in 1973. In its 2024 Montgomery County benchmarking disclosure it reported an ENERGY STAR score of 75 out of 100 (grade B), a site energy-use intensity of 51.4 kBtu/ft² and 881 tCO₂e of greenhouse-gas emissions. That score is higher than 57% 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 | 75 (band B) |
| Site EUI | 51.4 kBtu/ft² |
| Source EUI | 143.8 kBtu/ft² |
| GHG emissions | 881 tCO₂e |
| GHG intensity | — |
| Electricity | 2,942,400 kWh |
| Natural gas | 0 therms |
| Gross floor area | 195,509 sq ft |
| Source record | montgomery_county:10923398:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 75 | ±0 | 51.4 kBtu/ft² | 881 tCO₂e |
| 2023 | 75 | 50.9 kBtu/ft² | 895 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
- 4350 East West Highway
- State
- Maryland
- ZIP
- 20814
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 Bethesda Towers - West compare with other office buildings in Montgomery County?
The latest disclosures cover 414 office buildings in Montgomery County, out of 1,766 buildings citywide. Bethesda Towers - West's ENERGY STAR score of 75 compares with an average of 63 across the 325 that report a score; it scores higher than 57% of them and lower than 40%. Its site EUI of 51.4 kBtu/ft² is about 23% below the average of 66.5 kBtu/ft² — it uses less energy per square foot than the typical building in that group.
At 195,509 sq ft, it is about 48% above the average floor area of 132,356 sq ft for those buildings. It was built in 1973, 14 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 Bethesda Towers - West's energy performance changed over time?
BuildingCensus holds 2 Montgomery County disclosures for Bethesda Towers - West, covering report years 2023–2024. Its ENERGY STAR score was 75 in both 2023 and 2024. Site EUI moved from 50.9 kBtu/ft² (2023) to 51.4 kBtu/ft² (2024), an 1% increase. Reported emissions went from 895 tCO₂e to 881 tCO₂e over the same span (down 2%).
What does an ENERGY STAR score of 75 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 75 means the building performs better than about 75% of its national peers. BuildingCensus bands the score into report-card grades; 75 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. Bethesda Towers - West's 51.4 kBtu/ft² across 195,509 sq ft works out to about 10 billion Btu (2,945 MWh-equivalent) in 2024. Its source EUI of 143.8 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 2,942,400 kWh of electricity and 0 therms of natural gas for the year.
Which law requires Bethesda Towers - West to report its energy use?
Bethesda Towers - West 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:10923398:2024). 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
- 131510 - Summit At Washingtonian· 195,484 sq ft · score 64 (C)
- 9810 Darnestown· 195,435 sq ft · EUI 2.3 kBtu/ft²
- Democracy Center Iii - 6905 Rockledge Dr· 193,021 sq ft · score 39 (D)
- 8515 Georgia Avenue (Gv23,Gv26)· 192,771 sq ft · score 79 (B)
- Garden Plaza· 190,159 sq ft · score 78 (B)
- 12300 Twinbrook· 187,238 sq ft · EUI 48.5 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 Bethesda Towers - West's energy grade?
Bethesda Towers - West scores 75 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 Bethesda Towers - West use?
Its 2024 site energy-use intensity was 51.4 kBtu/ft² (143.8 kBtu/ft² source) across 195,509 sq ft, including 2,942,400 kWh of electricity and 0 therms of natural gas.
What are Bethesda Towers - West's carbon emissions?
Bethesda Towers - West reported 881 tCO₂e of greenhouse-gas emissions for 2024.
Where is Bethesda Towers - West?
Bethesda Towers - West is at 4350 East West Highway, in Montgomery County, Maryland 20814.
How big is Bethesda Towers - West and when was it built?
Bethesda Towers - West has 195,509 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1973 as its year built. It is classed as office.
Is Bethesda Towers - West 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, “Bethesda Towers - West, Montgomery County, Maryland — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/montgomery-county/bethesda-towers-west-1384a0f5 (data as of October 2, 2026).