1101 FAIRFAX AVE

How does 1101 FAIRFAX AVE compare with other multifamily buildings in San Francisco?

The latest disclosures cover 192 multifamily buildings in San Francisco, out of 2,509 buildings citywide. 1101 FAIRFAX AVE's ENERGY STAR score of 96 compares with an average of 86 across the 129 that report a score; it scores higher than 53% of them and lower than 42%. Its site EUI of 34.2 kBtu/ft² is roughly in line with the average of 34.9 kBtu/ft² — it uses less energy per square foot than the typical building in that group. Its emissions intensity of 1.6 kgCO₂e/ft² is about 15% below the group average of 1.9 kgCO₂e/ft².

At 148,706 sq ft, it is about 22% below the average floor area of 191,699 sq ft for those buildings. Across all 24 jurisdictions BuildingCensus covers, the 238 multifamily buildings average an ENERGY STAR score of 86 and a site EUI of 34.8 kBtu/ft².

How has 1101 FAIRFAX AVE's energy performance changed over time?

BuildingCensus holds 8 San Francisco disclosures for 1101 FAIRFAX AVE, covering report years 2018–2025. Its ENERGY STAR score went from 97 in 2019 to 96 in 2025 (-1 points); its best year on file was 2019, at 97. Site EUI moved from 30.9 kBtu/ft² (2019) to 34.2 kBtu/ft² (2025), an 11% increase. Reported emissions went from 270 tCO₂e to 241 tCO₂e over the same span (down 11%).

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. 1101 FAIRFAX AVE's 34.2 kBtu/ft² across 148,706 sq ft works out to about 5.1 billion Btu (1,490 MWh-equivalent) in 2025. Its source EUI of 51.5 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 392,608 kWh of electricity and 30,866 therms of natural gas for the year.

Which law requires 1101 FAIRFAX AVE to report its energy use?

1101 FAIRFAX AVE 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:4624/026:2025). San Francisco's ordinance requires annual benchmarking for commercial buildings over 10,000 sq ft, with administrative penalties for buildings that fail to report.