BuildingCensus
B

Barbizon Apartments

Multifamily Housing in Montgomery County, MD · 735 Sligo Avenue · 20910

At a glance

Barbizon Apartments is a 73,124-square-foot multifamily housing building at 735 Sligo Avenue in Montgomery County, Maryland, built in 1959. In its 2024 Montgomery County benchmarking disclosure it reported an ENERGY STAR score of 72 out of 100 (grade B), a site energy-use intensity of 65.3 kBtu/ft² and 312 tCO₂e of greenhouse-gas emissions. That score is higher than 24% of the 514 scored multifamily housing buildings in Montgomery County.

ENERGY STAR score
72
band B · 2024
Site EUI
65.3
kBtu/ft²
GHG emissions
312
tCO₂e
GHG intensity
—
kgCO₂e/ft²
Floor area
73,124
sq ft
Year built
1959
vintage

Benchmarking Law (Bill 2-14) / BEPS (Bill 16-21) · reporting year 2024

Benchmarking record

FieldValue
ENERGY STAR score72 (band B)
Site EUI65.3 kBtu/ft²
Source EUI108.8 kBtu/ft²
GHG emissions312 tCO₂e
GHG intensity—
Electricity492,335 kWh
Natural gas30,948 therms
Gross floor area73,124 sq ft
Source recordmontgomery_county:19920489:2024

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.

Program details →

Ownership

No owning organisation shown. Names of private individuals in the disclosure are not published here.

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Location

Address
735 Sligo Avenue
State
Maryland
ZIP
20910

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 Barbizon Apartments compare with other multifamily housing buildings in Montgomery County?

The latest disclosures cover 553 multifamily housing buildings in Montgomery County, out of 1,766 buildings citywide. Barbizon Apartments's ENERGY STAR score of 72 compares with an average of 80 across the 514 that report a score; it scores higher than 24% of them and lower than 75%. Its site EUI of 65.3 kBtu/ft² is about 51% above the average of 43.2 kBtu/ft² — it uses more energy per square foot than the typical building in that group.

At 73,124 sq ft, it is about 63% below the average floor area of 198,668 sq ft for those buildings. It was built in 1959, 30 years earlier than the group's average year built (1989). Across all 24 jurisdictions BuildingCensus covers, the 59,945 multifamily housing buildings average an ENERGY STAR score of 70 and a site EUI of 59.0 kBtu/ft².

What does an ENERGY STAR score of 72 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 72 means the building performs better than about 72% of its national peers. BuildingCensus bands the score into report-card grades; 72 falls in band B — above median (70–84). It sits 3 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. Barbizon Apartments's 65.3 kBtu/ft² across 73,124 sq ft works out to about 4.8 billion Btu (1,399 MWh-equivalent) in 2024. Its source EUI of 108.8 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 492,335 kWh of electricity and 30,948 therms of natural gas for the year.

Which law requires Barbizon Apartments to report its energy use?

Barbizon Apartments 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:19920489:2024). 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 multifamily housing buildings in Montgomery County

Frequently asked questions

What is Barbizon Apartments's energy grade?

Barbizon Apartments scores 72 out of 100 on ENERGY STAR — band B, above median (70–84) — in its 2024 Montgomery County disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.

How much energy does Barbizon Apartments use?

Its 2024 site energy-use intensity was 65.3 kBtu/ft² (108.8 kBtu/ft² source) across 73,124 sq ft, including 492,335 kWh of electricity and 30,948 therms of natural gas.

What are Barbizon Apartments's carbon emissions?

Barbizon Apartments reported 312 tCO₂e of greenhouse-gas emissions for 2024.

Where is Barbizon Apartments?

Barbizon Apartments is at 735 Sligo Avenue, in Montgomery County, Maryland 20910.

How big is Barbizon Apartments and when was it built?

Barbizon Apartments has 73,124 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1959 as its year built. It is classed as multifamily housing.

Is Barbizon Apartments 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, “Barbizon Apartments, Montgomery County, Maryland — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/montgomery-county/barbizon-apartments-baac6d8c (data as of October 2, 2026).