670 04TH ST

How does 670 04TH 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. 670 04TH ST's ENERGY STAR score of 13 compares with an average of 85 across the 340 that report a score; it scores higher than 2% of them and lower than 98%. Its site EUI of 34.9 kBtu/ft² is roughly in line with the average of 36.0 kBtu/ft² — it uses less energy per square foot than the typical building in that group. Its emissions intensity of 2.0 kgCO₂e/ft² is roughly in line with the group average of 2.0 kgCO₂e/ft².

At 89,495 sq ft, it is about half of the average floor area of 165,572 sq ft for those buildings. It was built in 2003, 37 years later than the group's average year built (1967).

How has 670 04TH ST's energy performance changed over time?

BuildingCensus holds 8 San Francisco disclosures for 670 04TH ST, covering report years 2018–2025. Its ENERGY STAR score went from 99 in 2018 to 13 in 2025 (-86 points); its best year on file was 2018, at 99. Site EUI moved from 39.8 kBtu/ft² (2018) to 34.9 kBtu/ft² (2025), a 12% decrease. Reported emissions went from 209 tCO₂e to 176 tCO₂e over the same span (down 16%).

What does an ENERGY STAR score of 13 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 13 means the building performs better than about 13% of its national peers. BuildingCensus bands the score into report-card grades; 13 falls in band D — lowest band (1–54). It sits 62 points below 75, the threshold for ENERGY STAR certification. 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. 670 04TH ST's 34.9 kBtu/ft² across 89,495 sq ft works out to about 3.1 billion Btu (915 MWh-equivalent) in 2025. Its source EUI of 82.0 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 679,104 kWh of electricity and 8,105 therms of natural gas for the year.

Which law requires 670 04TH ST to report its energy use?

670 04TH 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:3786/104:2025). San Francisco's ordinance requires annual benchmarking for commercial buildings over 10,000 sq ft, with administrative penalties for buildings that fail to report.