28104 Witherspoon Parkway, Bldg C

How does 28104 Witherspoon Parkway, Bldg C compare with other non-refrigerated warehouse buildings in California?

The latest disclosures cover 2,867 non-refrigerated warehouse buildings in California, out of 40,029 buildings citywide. 28104 Witherspoon Parkway, Bldg C's ENERGY STAR score of 95 compares with an average of 68 across the 2,227 that report a score; it scores higher than 77% of them and lower than 21%. Its site EUI of 4.8 kBtu/ft² is about 78% below the average of 21.7 kBtu/ft² — it uses less energy per square foot than the typical building in that group. Its emissions intensity of 0.3 kgCO₂e/ft² is about 79% below the group average of 1.4 kgCO₂e/ft².

At 189,250 sq ft, it is roughly in line with the average floor area of 173,929 sq ft for those buildings. It was built in 1999, 11 years later than the group's average year built (1988). Across all 24 jurisdictions BuildingCensus covers, the 4,723 non-refrigerated warehouse buildings average an ENERGY STAR score of 66 and a site EUI of 26.0 kBtu/ft².

How has 28104 Witherspoon Parkway, Bldg C's energy performance changed over time?

BuildingCensus holds 5 California disclosures for 28104 Witherspoon Parkway, Bldg C, covering report years 2018–2022. Its ENERGY STAR score went from 86 in 2018 to 95 in 2022 (+9 points). Site EUI moved from 6.6 kBtu/ft² (2018) to 4.8 kBtu/ft² (2022), a 27% decrease. Reported emissions went from 88 tCO₂e to 62 tCO₂e over the same span (down 29%).

What does an ENERGY STAR score of 95 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 95 means the building performs better than about 95% of its national peers. BuildingCensus bands the score into report-card grades; 95 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 California, 65% 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. 28104 Witherspoon Parkway, Bldg C's 4.8 kBtu/ft² across 189,250 sq ft works out to about 0.9 billion Btu (266 MWh-equivalent) in 2022. The disclosure also reports 265,121 kWh of electricity for the year.

Which law requires 28104 Witherspoon Parkway, Bldg C to report its energy use?

28104 Witherspoon Parkway, Bldg C reports under AB 802 (Public Resources Code §25402.10), the legal basis of California's Building Energy Benchmarking Program (statewide), which publishes each covered building's annual benchmarking results. The record shown here is the report-year 2022 disclosure (source record california:1249720:2022). AB 802 requires every California commercial building over 50,000 sq ft to report energy use to the CEC annually; the CEC publicly discloses the results statewide.