Izaak Walton - 707 Conservation Ln

How does Izaak Walton - 707 Conservation Ln compare with other office buildings in Montgomery County?

The latest disclosures cover 414 office buildings in Montgomery County, out of 1,766 buildings citywide. Izaak Walton - 707 Conservation Ln's ENERGY STAR score of 48 compares with an average of 63 across the 325 that report a score; it scores higher than 26% of them and lower than 74%. Its site EUI of 53.1 kBtu/ft² is about 20% below the average of 66.5 kBtu/ft² — it uses less energy per square foot than the typical building in that group.

At 34,125 sq ft, it is about 74% below the average floor area of 132,356 sq ft for those buildings. It was built in 1994, 7 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 Izaak Walton - 707 Conservation Ln's energy performance changed over time?

BuildingCensus holds 2 Montgomery County disclosures for Izaak Walton - 707 Conservation Ln, covering report years 2023–2024. Its ENERGY STAR score went from 87 in 2023 to 48 in 2024 (-39 points); its best year on file was 2023, at 87. Site EUI moved from 33.1 kBtu/ft² (2023) to 53.1 kBtu/ft² (2024), an 60% increase. Reported emissions went from 89 tCO₂e to 145 tCO₂e over the same span (up 63%).

What does an ENERGY STAR score of 48 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 48 means the building performs better than about 48% of its national peers. BuildingCensus bands the score into report-card grades; 48 falls in band D — lowest band (1–54). It sits 27 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. Izaak Walton - 707 Conservation Ln's 53.1 kBtu/ft² across 34,125 sq ft works out to about 1.8 billion Btu (531 MWh-equivalent) in 2024. Its source EUI of 128.6 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 416,739 kWh of electricity and 3,886 therms of natural gas for the year.

Which law requires Izaak Walton - 707 Conservation Ln to report its energy use?

Izaak Walton - 707 Conservation Ln 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:34657878:2024). 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.