Trails At King Farm - Building 13
Multifamily Housing in Montgomery County, MD · 645 Elmcroft Blv · 20855
At a glance
Trails At King Farm - Building 13 is a 31,901-square-foot multifamily housing building at 645 Elmcroft Blv in Montgomery County, Maryland, built in 2000. In its 2024 Montgomery County benchmarking disclosure it reported an ENERGY STAR score of 31 out of 100 (grade D), a site energy-use intensity of 83.6 kBtu/ft² and 173 tCO₂e of greenhouse-gas emissions. That score is higher than 5% of the 514 scored multifamily housing buildings in Montgomery County.
Benchmarking Law (Bill 2-14) / BEPS (Bill 16-21) · reporting year 2024
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 31 (band D) |
| Site EUI | 83.6 kBtu/ft² |
| Source EUI | 137.9 kBtu/ft² |
| GHG emissions | 173 tCO₂e |
| GHG intensity | — |
| Electricity | 267,991 kWh |
| Natural gas | 17,523 therms |
| Gross floor area | 31,901 sq ft |
| Source record | montgomery_county:37021352:2024 |
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.
Ownership
No owning organisation shown. Names of private individuals in the disclosure are not published here.
Own or manage this building? Claim it to correct the record and get compliance alerts.
Location
- Address
- 645 Elmcroft Blv
- State
- Maryland
- ZIP
- 20855
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 Trails At King Farm - Building 13 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. Trails At King Farm - Building 13's ENERGY STAR score of 31 compares with an average of 80 across the 514 that report a score; it scores higher than 5% of them and lower than 95%. Its site EUI of 83.6 kBtu/ft² is about twice the average of 43.2 kBtu/ft² — it uses more energy per square foot than the typical building in that group.
At 31,901 sq ft, it is about 84% below the average floor area of 198,668 sq ft for those buildings. It was built in 2000, 11 years later 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 31 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 31 means the building performs better than about 31% of its national peers. BuildingCensus bands the score into report-card grades; 31 falls in band D — lowest band (1–54). It sits 44 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. Trails At King Farm - Building 13's 83.6 kBtu/ft² across 31,901 sq ft works out to about 2.7 billion Btu (782 MWh-equivalent) in 2024. Its source EUI of 137.9 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 267,991 kWh of electricity and 17,523 therms of natural gas for the year.
Which law requires Trails At King Farm - Building 13 to report its energy use?
Trails At King Farm - Building 13 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:37021352:2024). 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
- Marlene Apartments Llc· 31,584 sq ft · score 95 (A)
- Villages At Decoverly - 9700 Skyhill· 31,412 sq ft · score 26 (D)
- Villages At Decoverly - 9700 Oakdale Drive· 31,336 sq ft · EUI 40.0 kBtu/ft²
- Diamond Estates 1· 30,726 sq ft · score 100 (A)
- Rock Creek Woods 13205-13207· 30,240 sq ft · score 97 (A)
- Rock Creek Woods 13212-13214· 30,240 sq ft · score 96 (A)
- Multifamily Housing buildings in Montgomery County· 553 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 Trails At King Farm - Building 13's energy grade?
Trails At King Farm - Building 13 scores 31 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 Trails At King Farm - Building 13 use?
Its 2024 site energy-use intensity was 83.6 kBtu/ft² (137.9 kBtu/ft² source) across 31,901 sq ft, including 267,991 kWh of electricity and 17,523 therms of natural gas.
What are Trails At King Farm - Building 13's carbon emissions?
Trails At King Farm - Building 13 reported 173 tCO₂e of greenhouse-gas emissions for 2024.
Where is Trails At King Farm - Building 13?
Trails At King Farm - Building 13 is at 645 Elmcroft Blv, in Montgomery County, Maryland 20855.
How big is Trails At King Farm - Building 13 and when was it built?
Trails At King Farm - Building 13 has 31,901 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 2000 as its year built. It is classed as multifamily housing.
Is Trails At King Farm - Building 13 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).
Working with Montgomery County building benchmarking records? Pro adds alerts, change history and CSV export ($49/mo); Enterprise adds full national files, the API and an MCP server for AI tools.
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, “Trails At King Farm - Building 13, Montgomery County, Maryland — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/montgomery-county/trails-at-king-farm-building-13-b09580ef (data as of October 2, 2026).