Redland I - 520 Gaither Rd - Opi
Office in Montgomery County, MD · 520 Gaither Rd · 20850
At a glance
Redland I - 520 Gaither Rd - Opi is a 143,058-square-foot office building in Montgomery County, Maryland, built in 2009. In its 2024 Montgomery County benchmarking disclosure it reported an ENERGY STAR score of 55 out of 100 (grade C), a site energy-use intensity of 56.2 kBtu/ft² and 705 tCO₂e of greenhouse-gas emissions. That score is higher than 31% 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 | 55 (band C) |
| Site EUI | 56.2 kBtu/ft² |
| Source EUI | 157.3 kBtu/ft² |
| GHG emissions | 705 tCO₂e |
| GHG intensity | — |
| Electricity | 2,355,514 kWh |
| Natural gas | 0 therms |
| Gross floor area | 143,058 sq ft |
| Source record | montgomery_county:3263625:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 55 | -8 | 56.2 kBtu/ft² | 705 tCO₂e |
| 2023 | 63 | 53.1 kBtu/ft² | 683 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
- 520 Gaither Rd
- State
- Maryland
- ZIP
- 20850
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 Redland I - 520 Gaither Rd - Opi compare with other office buildings in Montgomery County?
The latest disclosures cover 414 office buildings in Montgomery County, out of 1,766 buildings citywide. Redland I - 520 Gaither Rd - Opi's ENERGY STAR score of 55 compares with an average of 63 across the 325 that report a score; it scores higher than 31% of them and lower than 68%. Its site EUI of 56.2 kBtu/ft² is about 15% below the average of 66.5 kBtu/ft² — it uses less energy per square foot than the typical building in that group.
At 143,058 sq ft, it is roughly in line with the average floor area of 132,356 sq ft for those buildings. It was built in 2009, 22 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 Redland I - 520 Gaither Rd - Opi's energy performance changed over time?
BuildingCensus holds 2 Montgomery County disclosures for Redland I - 520 Gaither Rd - Opi, covering report years 2023–2024. Its ENERGY STAR score went from 63 in 2023 to 55 in 2024 (-8 points); its best year on file was 2023, at 63. Site EUI moved from 53.1 kBtu/ft² (2023) to 56.2 kBtu/ft² (2024), an 6% increase. Reported emissions went from 683 tCO₂e to 705 tCO₂e over the same span (up 3%).
What does an ENERGY STAR score of 55 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 55 means the building performs better than about 55% of its national peers. BuildingCensus bands the score into report-card grades; 55 falls in band C — below median (55–69). It sits 20 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. Redland I - 520 Gaither Rd - Opi's 56.2 kBtu/ft² across 143,058 sq ft works out to about 8 billion Btu (2,356 MWh-equivalent) in 2024. Its source EUI of 157.3 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 2,355,514 kWh of electricity and 0 therms of natural gas for the year.
Which law requires Redland I - 520 Gaither Rd - Opi to report its energy use?
Redland I - 520 Gaither Rd - Opi 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:3263625:2024). 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
- 6100 Executive Blvd.· 142,811 sq ft · score 53 (D)
- Support Center· 141,812 sq ft · score 76 (B)
- Lakeside Plaza· 141,567 sq ft · score 9 (D)
- 6500 Rock Spring Dr· 141,102 sq ft · score 54 (D)
- 1803 Research Blvd· 139,076 sq ft · score 92 (A)
- Park Plaza 1· 137,885 sq ft · score 20 (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 Redland I - 520 Gaither Rd - Opi's energy grade?
Redland I - 520 Gaither Rd - Opi scores 55 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 Redland I - 520 Gaither Rd - Opi use?
Its 2024 site energy-use intensity was 56.2 kBtu/ft² (157.3 kBtu/ft² source) across 143,058 sq ft, including 2,355,514 kWh of electricity and 0 therms of natural gas.
What are Redland I - 520 Gaither Rd - Opi's carbon emissions?
Redland I - 520 Gaither Rd - Opi reported 705 tCO₂e of greenhouse-gas emissions for 2024.
Where is Redland I - 520 Gaither Rd - Opi?
Redland I - 520 Gaither Rd - Opi is in Montgomery County, Maryland 20850.
How big is Redland I - 520 Gaither Rd - Opi and when was it built?
Redland I - 520 Gaither Rd - Opi has 143,058 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 2009 as its year built. It is classed as office.
Is Redland I - 520 Gaither Rd - Opi 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, “Redland I - 520 Gaither Rd - Opi, Montgomery County, Maryland — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/montgomery-county/redland-i-520-gaither-rd-opi-78f473de (data as of October 2, 2026).