Bethesda Row - 4900 Hampden
Lifestyle Center in Montgomery County, MD · 4900 Hampden Ln · 20814
At a glance
Bethesda Row - 4900 Hampden is a 47,533-square-foot lifestyle center at 4900 Hampden Ln in Montgomery County, Maryland, built in 2010. In its 2024 Montgomery County benchmarking disclosure it reported a site energy-use intensity of 206.5 kBtu/ft² and 701 tCO₂e of greenhouse-gas emissions.
Benchmarking Law (Bill 2-14) / BEPS (Bill 16-21) · reporting year 2024
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | — |
| Site EUI | 206.5 kBtu/ft² |
| Source EUI | 407.8 kBtu/ft² |
| GHG emissions | 701 tCO₂e |
| GHG intensity | — |
| Electricity | 1,520,047 kWh |
| Natural gas | 46,295 therms |
| Gross floor area | 47,533 sq ft |
| Source record | montgomery_county:23734244:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | — | 206.5 kBtu/ft² | 701 tCO₂e | |
| 2023 | — | 194.0 kBtu/ft² | 671 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
- 4900 Hampden Ln
- 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 Row - 4900 Hampden compare with other lifestyle center buildings in Montgomery County?
The latest disclosures cover 6 lifestyle center buildings in Montgomery County, out of 1,766 buildings citywide. Its site EUI of 206.5 kBtu/ft² is about 55% above the average of 133.3 kBtu/ft² — it uses more energy per square foot than the typical building in that group.
At 47,533 sq ft, it is about 67% below the average floor area of 146,094 sq ft for those buildings. It was built in 2010, 6 years later than the group's average year built (2004). Across all 24 jurisdictions BuildingCensus covers, the 163 lifestyle center buildings average an ENERGY STAR score of 53 and a site EUI of 76.1 kBtu/ft².
How has Bethesda Row - 4900 Hampden's energy performance changed over time?
BuildingCensus holds 2 Montgomery County disclosures for Bethesda Row - 4900 Hampden, covering report years 2023–2024. Site EUI moved from 194.0 kBtu/ft² (2023) to 206.5 kBtu/ft² (2024), an 6% increase. Reported emissions went from 671 tCO₂e to 701 tCO₂e over the same span (up 4%).
What does a site EUI of 206.5 kBtu/ft² mean?
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 Row - 4900 Hampden's 206.5 kBtu/ft² across 47,533 sq ft works out to about 9.8 billion Btu (2,877 MWh-equivalent) in 2024. Its source EUI of 407.8 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 1,520,047 kWh of electricity and 46,295 therms of natural gas for the year.
Which law requires Bethesda Row - 4900 Hampden to report its energy use?
Bethesda Row - 4900 Hampden 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:23734244:2024). 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 lifestyle center buildings in Montgomery County
- Bethesda Row - 4910 Elm· 42,668 sq ft · EUI 156.2 kBtu/ft²
- Bethesda Row - 4807· 31,920 sq ft · EUI 99.6 kBtu/ft²
- 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 Row - 4900 Hampden's energy grade?
Bethesda Row - 4900 Hampden did not report an ENERGY STAR score in its 2024 disclosure, but its site energy-use intensity was 206.5 kBtu/ft².
How much energy does Bethesda Row - 4900 Hampden use?
Its 2024 site energy-use intensity was 206.5 kBtu/ft² (407.8 kBtu/ft² source) across 47,533 sq ft, including 1,520,047 kWh of electricity and 46,295 therms of natural gas.
What are Bethesda Row - 4900 Hampden's carbon emissions?
Bethesda Row - 4900 Hampden reported 701 tCO₂e of greenhouse-gas emissions for 2024.
Where is Bethesda Row - 4900 Hampden?
Bethesda Row - 4900 Hampden is at 4900 Hampden Ln, in Montgomery County, Maryland 20814.
How big is Bethesda Row - 4900 Hampden and when was it built?
Bethesda Row - 4900 Hampden has 47,533 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 2010 as its year built. It is classed as lifestyle center.
Is Bethesda Row - 4900 Hampden 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 Row - 4900 Hampden, Montgomery County, Maryland — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/montgomery-county/bethesda-row-4900-hampden-d9f20f25 (data as of October 2, 2026).