1050 Summerside Dr

How does 1050 Summerside Dr 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. 1050 Summerside Dr's ENERGY STAR score of 93 compares with an average of 86 across the 435 that report a score; it scores higher than 48% of them and lower than 49%. Its site EUI of 31.8 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 417,280 sq ft, it is about 165% above the average floor area of 157,540 sq ft for those buildings. It was built in 1971, 16 years earlier than 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 1050 Summerside Dr's energy performance changed over time?

BuildingCensus holds 7 San José disclosures for 1050 Summerside Dr, covering report years 2018–2024. Its ENERGY STAR score went from 78 in 2019 to 93 in 2024 (+15 points). Site EUI moved from 35.1 kBtu/ft² (2019) to 31.8 kBtu/ft² (2024), a 9% decrease. Reported emissions went from 885 tCO₂e to 790 tCO₂e over the same span (down 11%).

What does an ENERGY STAR score of 93 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 93 means the building performs better than about 93% of its national peers. BuildingCensus bands the score into report-card grades; 93 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. 1050 Summerside Dr's 31.8 kBtu/ft² across 417,280 sq ft works out to about 13.3 billion Btu (3,889 MWh-equivalent) in 2024. Its source EUI of 60.2 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 1,875,036 kWh of electricity, 68,801 therms of natural gas and 25,163 thousand gallons of water for the year.

Which law requires 1050 Summerside Dr to report its energy use?

1050 Summerside Dr 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:1668-1-00:2024). San José's BPO requires buildings over 20,000 sq ft to benchmark annually and complete beyond-benchmarking performance improvements on a rolling schedule.