1255 San Tomas Aquino Rd

How does 1255 San Tomas Aquino Rd compare with other multifamily housing buildings in San José?

The latest disclosures cover 476 multifamily housing buildings in San José, out of 1,790 buildings citywide. 1255 San Tomas Aquino Rd's ENERGY STAR score of 84 compares with an average of 86 across the 435 that report a score; it scores higher than 26% of them and lower than 72%. Its site EUI of 33.1 kBtu/ft² is roughly in line with the average of 35.3 kBtu/ft² — it uses less energy per square foot than the typical building in that group.

At 96,930 sq ft, it is about 38% below the average floor area of 157,540 sq ft for those buildings. Its 1986 construction date is close to the group's average year built (1987). 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.

How has 1255 San Tomas Aquino Rd's energy performance changed over time?

BuildingCensus holds 7 San José disclosures for 1255 San Tomas Aquino Rd, covering report years 2018–2024. Its ENERGY STAR score went from 95 in 2019 to 84 in 2024 (-11 points); its best year on file was 2019, at 95. Site EUI moved from 36.7 kBtu/ft² (2018) to 33.1 kBtu/ft² (2024), a 10% decrease. Reported emissions went from 195 tCO₂e to 193 tCO₂e over the same span (down 1%).

What does an ENERGY STAR score of 84 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 84 means the building performs better than about 84% of its national peers. BuildingCensus bands the score into report-card grades; 84 falls in band B — above median (70–84). 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 San José, 69% 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. 1255 San Tomas Aquino Rd's 33.1 kBtu/ft² across 96,930 sq ft works out to about 3.2 billion Btu (940 MWh-equivalent) in 2024. Its source EUI of 66.0 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 507,318 kWh of electricity, 14,735 therms of natural gas and 5,720 thousand gallons of water for the year.

Which law requires 1255 San Tomas Aquino Rd to report its energy use?

1255 San Tomas Aquino Rd reports under San José Municipal Code Ch. 17.85 (Energy and Water Building Performance Ordinance), the legal basis of San José's Energy and Water Building Performance Ordinance, which publishes each covered building's annual benchmarking results. The record shown here is the report-year 2024 disclosure (source record san_jose:1186-0-00:2024). San José's BPO requires buildings over 20,000 sq ft to benchmark annually and complete beyond-benchmarking performance improvements on a rolling schedule.