50 RIZAL ST

How does 50 RIZAL 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. 50 RIZAL ST's ENERGY STAR score of 84 compares with an average of 85 across the 340 that report a score; it scores higher than 25% of them and lower than 72%. Its site EUI of 53.8 kBtu/ft² is about 49% 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 2.9 kgCO₂e/ft² is about 47% above the group average of 2.0 kgCO₂e/ft².

At 84,759 sq ft, it is about half of the average floor area of 165,572 sq ft for those buildings. It was built in 1979, 13 years later than the group's average year built (1967).

How has 50 RIZAL ST's energy performance changed over time?

BuildingCensus holds 8 San Francisco disclosures for 50 RIZAL ST, covering report years 2018–2025. Its ENERGY STAR score went from 79 in 2018 to 84 in 2025 (+5 points); its best year on file was 2022, at 100. Site EUI moved from 61.8 kBtu/ft² (2018) to 53.8 kBtu/ft² (2025), a 13% decrease. Reported emissions went from 283 tCO₂e to 234 tCO₂e over the same span (down 17%).

What does an ENERGY STAR score of 84 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 84 means the building performs better than about 84% of its national peers. BuildingCensus bands the score into report-card grades; 84 falls in band B — above median (70–84). 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. 50 RIZAL ST's 53.8 kBtu/ft² across 84,759 sq ft works out to about 4.6 billion Btu (1,336 MWh-equivalent) in 2025. Its source EUI of 86.4 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 400,369 kWh of electricity and 29,282 therms of natural gas for the year.

Which law requires 50 RIZAL ST to report its energy use?

50 RIZAL 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:3751/169:2025). San Francisco's ordinance requires annual benchmarking for commercial buildings over 10,000 sq ft, with administrative penalties for buildings that fail to report.