45 West Watkins Mill Road
Office in Montgomery County, MD · 45 W Watkins Mill Rd · 20878
At a glance
45 West Watkins Mill Road is a 54,270-square-foot office building at 45 W Watkins Mill Rd in Montgomery County, Maryland, built in 1985. In its 2024 Montgomery County benchmarking disclosure it reported a site energy-use intensity of 330.9 kBtu/ft² and 1,429 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 | 330.9 kBtu/ft² |
| Source EUI | 789.8 kBtu/ft² |
| GHG emissions | 1,429 tCO₂e |
| GHG intensity | — |
| Electricity | 4,020,349 kWh |
| Natural gas | 42,413 therms |
| Gross floor area | 54,270 sq ft |
| Source record | montgomery_county:26636349:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | — | 330.9 kBtu/ft² | 1,429 tCO₂e | |
| 2023 | — | 329.4 kBtu/ft² | 1,433 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.
Own or manage this building? Claim it to correct the record and get compliance alerts.
Location
- Address
- 45 W Watkins Mill Rd
- State
- Maryland
- ZIP
- 20878
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 45 West Watkins Mill Road compare with other office buildings in Montgomery County?
The latest disclosures cover 414 office buildings in Montgomery County, out of 1,766 buildings citywide. Its site EUI of 330.9 kBtu/ft² is about 398% above the average of 66.5 kBtu/ft² — it uses more energy per square foot than the typical building in that group.
At 54,270 sq ft, it is about 59% below the average floor area of 132,356 sq ft for those buildings. Its 1985 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 45 West Watkins Mill Road's energy performance changed over time?
BuildingCensus holds 2 Montgomery County disclosures for 45 West Watkins Mill Road, covering report years 2023–2024. Site EUI moved from 329.4 kBtu/ft² (2023) to 330.9 kBtu/ft² (2024), an 0% increase. Reported emissions went from 1,433 tCO₂e to 1,429 tCO₂e over the same span (down 0%).
What does a site EUI of 330.9 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. 45 West Watkins Mill Road's 330.9 kBtu/ft² across 54,270 sq ft works out to about 18 billion Btu (5,263 MWh-equivalent) in 2024. Its source EUI of 789.8 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 4,020,349 kWh of electricity and 42,413 therms of natural gas for the year.
Which law requires 45 West Watkins Mill Road to report its energy use?
45 West Watkins Mill Road 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:26636349:2024). 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
- Century Technology Campus· 54,016 sq ft · EUI 395.6 kBtu/ft²
- 22 Firstfield Road· 54,000 sq ft · score 24 (D)
- Eb Clarksburg Llc (22516)· 53,521 sq ft
- 4401 East-West Hwy: 4401 East-West Highway· 53,110 sq ft · score 82 (B)
- 702 Russell· 52,924 sq ft · score 75 (B)
- Crossroads Professional Building· 52,915 sq ft · score 71 (B)
- 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 45 West Watkins Mill Road's energy grade?
45 West Watkins Mill Road did not report an ENERGY STAR score in its 2024 disclosure, but its site energy-use intensity was 330.9 kBtu/ft².
How much energy does 45 West Watkins Mill Road use?
Its 2024 site energy-use intensity was 330.9 kBtu/ft² (789.8 kBtu/ft² source) across 54,270 sq ft, including 4,020,349 kWh of electricity and 42,413 therms of natural gas.
What are 45 West Watkins Mill Road's carbon emissions?
45 West Watkins Mill Road reported 1,429 tCO₂e of greenhouse-gas emissions for 2024.
Where is 45 West Watkins Mill Road?
45 West Watkins Mill Road is at 45 W Watkins Mill Rd, in Montgomery County, Maryland 20878.
How big is 45 West Watkins Mill Road and when was it built?
45 West Watkins Mill Road has 54,270 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1985 as its year built. It is classed as office.
Is 45 West Watkins Mill Road 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).
Working with Montgomery County building benchmarking records? Pro adds alerts, change history and CSV export ($49/mo); Enterprise adds full national files, the API and an MCP server for AI tools.
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, “45 West Watkins Mill Road, Montgomery County, Maryland — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/montgomery-county/45-west-watkins-mill-road-f06777c0 (data as of October 2, 2026).