351 TURK ST

How does 351 TURK ST compare with other mixed residential buildings in San Francisco?

The latest disclosures cover 610 mixed residential buildings in San Francisco, out of 2,509 buildings citywide. 351 TURK ST's ENERGY STAR score of 96 compares with an average of 85 across the 340 that report a score; it scores higher than 48% of them and lower than 47%. Its site EUI of 54.4 kBtu/ft² is about 51% above the average of 36.0 kBtu/ft² — it uses more energy per square foot than the typical building in that group. Its emissions intensity of 3.0 kgCO₂e/ft² is about 49% above the group average of 2.0 kgCO₂e/ft².

At 89,630 sq ft, it is about half of the average floor area of 165,572 sq ft for those buildings. It was built in 1928, 38 years earlier than the group's average year built (1967).

How has 351 TURK ST's energy performance changed over time?

BuildingCensus holds 8 San Francisco disclosures for 351 TURK ST, covering report years 2018–2025. Its ENERGY STAR score went from 99 in 2019 to 96 in 2025 (-3 points); its best year on file was 2019, at 99. Site EUI moved from 42.1 kBtu/ft² (2019) to 54.4 kBtu/ft² (2025), an 29% increase. Reported emissions went from 233 tCO₂e to 266 tCO₂e over the same span (up 14%).

What does an ENERGY STAR score of 96 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 96 means the building performs better than about 96% of its national peers. BuildingCensus bands the score into report-card grades; 96 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 Francisco, 73% 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. 351 TURK ST's 54.4 kBtu/ft² across 89,630 sq ft works out to about 4.9 billion Btu (1,429 MWh-equivalent) in 2025. Its source EUI of 91.9 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 522,012 kWh of electricity and 30,965 therms of natural gas for the year.

Which law requires 351 TURK ST to report its energy use?

351 TURK ST reports under SF Environment Code Chapter 20, the legal basis of San Francisco's Existing Buildings Energy Performance Ordinance, which publishes each covered building's annual benchmarking results. The record shown here is the report-year 2025 disclosure (source record sf:0345/018:2025). San Francisco's ordinance requires annual benchmarking for commercial buildings over 10,000 sq ft, with administrative penalties for buildings that fail to report.