The Isn Building
Office in Montgomery County, MD · 10411 Motor City Dr · 20817
At a glance
The Isn Building is a 96,429-square-foot office building at 10411 Motor City Dr in Montgomery County, Maryland, built in 1986. In its 2024 Montgomery County benchmarking disclosure it reported an ENERGY STAR score of 34 out of 100 (grade D), a site energy-use intensity of 82.6 kBtu/ft² and 699 tCO₂e of greenhouse-gas emissions. That score is higher than 14% 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 | 34 (band D) |
| Site EUI | 82.6 kBtu/ft² |
| Source EUI | 231.2 kBtu/ft² |
| GHG emissions | 699 tCO₂e |
| GHG intensity | — |
| Electricity | 2,333,316 kWh |
| Natural gas | 0 therms |
| Gross floor area | 96,429 sq ft |
| Source record | montgomery_county:13463686:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 34 | +1 | 82.6 kBtu/ft² | 699 tCO₂e |
| 2023 | 33 | 83.0 kBtu/ft² | 719 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
- 10411 Motor City Dr
- State
- Maryland
- ZIP
- 20817
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 The Isn Building compare with other office buildings in Montgomery County?
The latest disclosures cover 414 office buildings in Montgomery County, out of 1,766 buildings citywide. The Isn Building's ENERGY STAR score of 34 compares with an average of 63 across the 325 that report a score; it scores higher than 14% of them and lower than 85%. Its site EUI of 82.6 kBtu/ft² is about 24% above the average of 66.5 kBtu/ft² — it uses more energy per square foot than the typical building in that group.
At 96,429 sq ft, it is about 27% below the average floor area of 132,356 sq ft for those buildings. Its 1986 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 The Isn Building's energy performance changed over time?
BuildingCensus holds 2 Montgomery County disclosures for The Isn Building, covering report years 2023–2024. Its ENERGY STAR score went from 33 in 2023 to 34 in 2024 (+1 points). Site EUI moved from 83.0 kBtu/ft² (2023) to 82.6 kBtu/ft² (2024), a 0% decrease. Reported emissions went from 719 tCO₂e to 699 tCO₂e over the same span (down 3%).
What does an ENERGY STAR score of 34 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 34 means the building performs better than about 34% of its national peers. BuildingCensus bands the score into report-card grades; 34 falls in band D — lowest band (1–54). It sits 41 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. The Isn Building's 82.6 kBtu/ft² across 96,429 sq ft works out to about 8 billion Btu (2,334 MWh-equivalent) in 2024. Its source EUI of 231.2 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 2,333,316 kWh of electricity and 0 therms of natural gas for the year.
Which law requires The Isn Building to report its energy use?
The Isn Building 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:13463686:2024). 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
- Germantown B2· 96,337 sq ft · EUI 177.7 kBtu/ft²
- 801 Roeder Road - Dhc· 95,816 sq ft · EUI 22.5 kBtu/ft²
- Exchange Place Building· 95,770 sq ft · score 80 (B)
- 8701 Georgia Llc· 95,504 sq ft · score 71 (B)
- 9808 Medical Center Drive· 95,062 sq ft · EUI 121.4 kBtu/ft²
- Takoma Business Center· 94,681 sq ft · score 66 (C)
- 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 The Isn Building's energy grade?
The Isn Building scores 34 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 The Isn Building use?
Its 2024 site energy-use intensity was 82.6 kBtu/ft² (231.2 kBtu/ft² source) across 96,429 sq ft, including 2,333,316 kWh of electricity and 0 therms of natural gas.
What are The Isn Building's carbon emissions?
The Isn Building reported 699 tCO₂e of greenhouse-gas emissions for 2024.
Where is The Isn Building?
The Isn Building is at 10411 Motor City Dr, in Montgomery County, Maryland 20817.
How big is The Isn Building and when was it built?
The Isn Building has 96,429 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1986 as its year built. It is classed as office.
Is The Isn Building 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, “The Isn Building, Montgomery County, Maryland — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/montgomery-county/the-isn-building-72a64df4 (data as of October 2, 2026).