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Rock Creek Woods 13211-13209

Multifamily Housing in Montgomery County, MD · 13209 Twinbrook Pkwy 20851 · 20851

At a glance

Rock Creek Woods 13211-13209 is a 30,240-square-foot multifamily housing building at 13209 Twinbrook Pkwy 20851 in Montgomery County, Maryland, built in 1960. In its 2024 Montgomery County benchmarking disclosure it reported an ENERGY STAR score of 91 out of 100 (grade A), a site energy-use intensity of 50.0 kBtu/ft² and 95 tCO₂e of greenhouse-gas emissions. That score is higher than 56% of the 514 scored multifamily housing buildings in Montgomery County.

ENERGY STAR score
91
band A · 2024
Site EUI
50.0
kBtu/ft²
GHG emissions
95
tCO₂e
GHG intensity
—
kgCO₂e/ft²
Floor area
30,240
sq ft
Year built
1960
vintage

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

Benchmarking record

FieldValue
ENERGY STAR score91 (band A)
Site EUI50.0 kBtu/ft²
Source EUI76.9 kBtu/ft²
GHG emissions95 tCO₂e
GHG intensity—
Electricity123,297 kWh
Natural gas10,921 therms
Gross floor area30,240 sq ft
Source recordmontgomery_county:58441593:2024

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.

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Ownership

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

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Location

Address
13209 Twinbrook Pkwy 20851
State
Maryland
ZIP
20851

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 Rock Creek Woods 13211-13209 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. Rock Creek Woods 13211-13209's ENERGY STAR score of 91 compares with an average of 80 across the 514 that report a score; it scores higher than 56% of them and lower than 40%. Its site EUI of 50.0 kBtu/ft² is about 16% above the average of 43.2 kBtu/ft² — it uses more energy per square foot than the typical building in that group.

At 30,240 sq ft, it is about 85% below the average floor area of 198,668 sq ft for those buildings. It was built in 1960, 29 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 91 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 91 means the building performs better than about 91% of its national peers. BuildingCensus bands the score into report-card grades; 91 falls in band A — high performer (85–100). Scores of 75 or higher meet the threshold for ENERGY STAR certification; certification itself is a separate, verified application that the disclosure does not record. 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. Rock Creek Woods 13211-13209's 50.0 kBtu/ft² across 30,240 sq ft works out to about 1.5 billion Btu (443 MWh-equivalent) in 2024. Its source EUI of 76.9 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 123,297 kWh of electricity and 10,921 therms of natural gas for the year.

Which law requires Rock Creek Woods 13211-13209 to report its energy use?

Rock Creek Woods 13211-13209 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:58441593:2024). 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 Rock Creek Woods 13211-13209's energy grade?

Rock Creek Woods 13211-13209 scores 91 out of 100 on ENERGY STAR — band A, high performer (85–100) — in its 2024 Montgomery County disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.

How much energy does Rock Creek Woods 13211-13209 use?

Its 2024 site energy-use intensity was 50.0 kBtu/ft² (76.9 kBtu/ft² source) across 30,240 sq ft, including 123,297 kWh of electricity and 10,921 therms of natural gas.

What are Rock Creek Woods 13211-13209's carbon emissions?

Rock Creek Woods 13211-13209 reported 95 tCO₂e of greenhouse-gas emissions for 2024.

Where is Rock Creek Woods 13211-13209?

Rock Creek Woods 13211-13209 is at 13209 Twinbrook Pkwy 20851, in Montgomery County, Maryland 20851.

How big is Rock Creek Woods 13211-13209 and when was it built?

Rock Creek Woods 13211-13209 has 30,240 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1960 as its year built. It is classed as multifamily housing.

Is Rock Creek Woods 13211-13209 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, “Rock Creek Woods 13211-13209, Montgomery County, Maryland — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/montgomery-county/rock-creek-woods-13211-13209-e84a8257 (data as of October 2, 2026).