3051 N 1St St

How does 3051 N 1St St compare with other office buildings in San José?

The latest disclosures cover 408 office buildings in San José, out of 1,790 buildings citywide. 3051 N 1St St's ENERGY STAR score of 9 compares with an average of 67 across the 283 that report a score; it scores higher than 7% of them and lower than 93%. Its site EUI of 72.4 kBtu/ft² is about 12% above the average of 64.9 kBtu/ft² — it uses more energy per square foot than the typical building in that group.

At 35,171 sq ft, it is about 63% below the average floor area of 95,555 sq ft for those buildings. It was built in 1980, 6 years earlier 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 3051 N 1St St's energy performance changed over time?

BuildingCensus holds 7 San José disclosures for 3051 N 1St St, covering report years 2018–2024. Its ENERGY STAR score went from 90 in 2019 to 9 in 2024 (-81 points); its best year on file was 2020, at 100. Site EUI moved from 18.9 kBtu/ft² (2019) to 72.4 kBtu/ft² (2024), an 283% increase. Reported emissions went from 10 tCO₂e to 167 tCO₂e over the same span (up 1506%).

What does an ENERGY STAR score of 9 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 9 means the building performs better than about 9% of its national peers. BuildingCensus bands the score into report-card grades; 9 falls in band D — lowest band (1–54). It sits 66 points below 75, the threshold for ENERGY STAR certification. 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. 3051 N 1St St's 72.4 kBtu/ft² across 35,171 sq ft works out to about 2.5 billion Btu (746 MWh-equivalent) in 2024. Its source EUI of 195.3 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 702,221 kWh of electricity, 1,512 therms of natural gas and 772 thousand gallons of water for the year.

Which law requires 3051 N 1St St to report its energy use?

3051 N 1St St 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:0241-0-00:2024). San José's BPO requires buildings over 20,000 sq ft to benchmark annually and complete beyond-benchmarking performance improvements on a rolling schedule.