Bl Blackwell Company Llc
Office in Montgomery County, MD · 6935 Wisconsin Ave · 20815
At a glance
Bl Blackwell Company Llc is a 39,198-square-foot office building at 6935 Wisconsin Ave in Montgomery County, Maryland, built in 2010. In its 2024 Montgomery County benchmarking disclosure it reported an ENERGY STAR score of 59 out of 100 (grade C), a site energy-use intensity of 63.2 kBtu/ft² and 175 tCO₂e of greenhouse-gas emissions. That score is higher than 35% 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 | 59 (band C) |
| Site EUI | 63.2 kBtu/ft² |
| Source EUI | 139.1 kBtu/ft² |
| GHG emissions | 175 tCO₂e |
| GHG intensity | — |
| Electricity | 477,322 kWh |
| Natural gas | 8,503 therms |
| Gross floor area | 39,198 sq ft |
| Source record | montgomery_county:34523126:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 59 | +7 | 63.2 kBtu/ft² | 175 tCO₂e |
| 2023 | 52 | 72.0 kBtu/ft² | 209 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
- 6935 Wisconsin Ave
- State
- Maryland
- ZIP
- 20815
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 Bl Blackwell Company Llc compare with other office buildings in Montgomery County?
The latest disclosures cover 414 office buildings in Montgomery County, out of 1,766 buildings citywide. Bl Blackwell Company Llc's ENERGY STAR score of 59 compares with an average of 63 across the 325 that report a score; it scores higher than 35% of them and lower than 63%. Its site EUI of 63.2 kBtu/ft² is roughly in line with the average of 66.5 kBtu/ft² — it uses less energy per square foot than the typical building in that group.
At 39,198 sq ft, it is about 70% below the average floor area of 132,356 sq ft for those buildings. It was built in 2010, 23 years later 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 Bl Blackwell Company Llc's energy performance changed over time?
BuildingCensus holds 2 Montgomery County disclosures for Bl Blackwell Company Llc, covering report years 2023–2024. Its ENERGY STAR score went from 52 in 2023 to 59 in 2024 (+7 points). Site EUI moved from 72.0 kBtu/ft² (2023) to 63.2 kBtu/ft² (2024), a 12% decrease. Reported emissions went from 209 tCO₂e to 175 tCO₂e over the same span (down 16%).
What does an ENERGY STAR score of 59 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 59 means the building performs better than about 59% of its national peers. BuildingCensus bands the score into report-card grades; 59 falls in band C — below median (55–69). It sits 16 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. Bl Blackwell Company Llc's 63.2 kBtu/ft² across 39,198 sq ft works out to about 2.5 billion Btu (726 MWh-equivalent) in 2024. Its source EUI of 139.1 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 477,322 kWh of electricity and 8,503 therms of natural gas for the year.
Which law requires Bl Blackwell Company Llc to report its energy use?
Bl Blackwell Company Llc 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:34523126:2024). 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
- Diamond Office Center· 39,175 sq ft · score 13 (D)
- Eb Clarksburg Llc (22520)· 38,971 sq ft
- 200 Monroe Street· 38,272 sq ft · score 58 (C)
- 15010 Broschart Road· 38,204 sq ft · EUI 112.2 kBtu/ft²
- 5000-5020 Nicholson Court· 37,900 sq ft · EUI 42.9 kBtu/ft²
- Rock Creek Century Llc, 20420· 37,388 sq ft · score 45 (D)
- 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 Bl Blackwell Company Llc's energy grade?
Bl Blackwell Company Llc scores 59 out of 100 on ENERGY STAR — band C, below median (55–69) — in its 2024 Montgomery County disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does Bl Blackwell Company Llc use?
Its 2024 site energy-use intensity was 63.2 kBtu/ft² (139.1 kBtu/ft² source) across 39,198 sq ft, including 477,322 kWh of electricity and 8,503 therms of natural gas.
What are Bl Blackwell Company Llc's carbon emissions?
Bl Blackwell Company Llc reported 175 tCO₂e of greenhouse-gas emissions for 2024.
Where is Bl Blackwell Company Llc?
Bl Blackwell Company Llc is at 6935 Wisconsin Ave, in Montgomery County, Maryland 20815.
How big is Bl Blackwell Company Llc and when was it built?
Bl Blackwell Company Llc has 39,198 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 2010 as its year built. It is classed as office.
Is Bl Blackwell Company Llc 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, “Bl Blackwell Company Llc, Montgomery County, Maryland — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/montgomery-county/bl-blackwell-company-llc-b7701113 (data as of October 2, 2026).