300 Park Ave

How does 300 Park Ave compare with other office buildings in San José?

The latest disclosures cover 408 office buildings in San José, out of 1,790 buildings citywide. 300 Park Ave's ENERGY STAR score of 86 compares with an average of 67 across the 283 that report a score; it scores higher than 64% of them and lower than 33%. Its site EUI of 41.8 kBtu/ft² is about 36% below the average of 64.9 kBtu/ft² — it uses less energy per square foot than the typical building in that group.

At 302,571 sq ft, it is about 217% above the average floor area of 95,555 sq ft for those buildings. It was built in 2009, 23 years later than the group's average year built (1986). 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 300 Park Ave's energy performance changed over time?

BuildingCensus holds 7 San José disclosures for 300 Park Ave, covering report years 2018–2024. Its ENERGY STAR score was 86 in both 2018 and 2024. Site EUI moved from 43.0 kBtu/ft² (2018) to 41.8 kBtu/ft² (2024), a 3% decrease. Reported emissions went from 979 tCO₂e to 790 tCO₂e over the same span (down 19%).

What does an ENERGY STAR score of 86 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 86 means the building performs better than about 86% of its national peers. BuildingCensus bands the score into report-card grades; 86 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 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. 300 Park Ave's 41.8 kBtu/ft² across 302,571 sq ft works out to about 12.6 billion Btu (3,707 MWh-equivalent) in 2024. Its source EUI of 95.5 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 2,615,488 kWh of electricity, 37,315 therms of natural gas and 2,539 thousand gallons of water for the year.

Which law requires 300 Park Ave to report its energy use?

300 Park Ave 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:0942-0-00:2024). San José's BPO requires buildings over 20,000 sq ft to benchmark annually and complete beyond-benchmarking performance improvements on a rolling schedule.