PARC 55 WYNDHAM San Francisco- Union Square

How does PARC 55 WYNDHAM San Francisco- Union Square compare with other commercial buildings in San Francisco?

The latest disclosures cover 1,683 commercial buildings in San Francisco, out of 2,509 buildings citywide. PARC 55 WYNDHAM San Francisco- Union Square's ENERGY STAR score of 93 compares with an average of 78 across the 790 that report a score; it scores higher than 68% of them and lower than 29%. Its site EUI of 57.6 kBtu/ft² is about 17% above the average of 49.2 kBtu/ft² — it uses more energy per square foot than the typical building in that group. Its emissions intensity of 3.1 kgCO₂e/ft² is about 17% above the group average of 2.7 kgCO₂e/ft².

At 698,660 sq ft, it is about 550% above the average floor area of 107,408 sq ft for those buildings. It was built in 1983, 42 years later than the group's average year built (1941). Across all 24 jurisdictions BuildingCensus covers, the 2,307 commercial buildings average an ENERGY STAR score of 76 and a site EUI of 51.3 kBtu/ft².

How has PARC 55 WYNDHAM San Francisco- Union Square's energy performance changed over time?

BuildingCensus holds 15 San Francisco disclosures for PARC 55 WYNDHAM San Francisco- Union Square, covering report years 2011–2025. Its ENERGY STAR score went from 76 in 2011 to 93 in 2025 (+17 points); its best year on file was 2022, at 98. Site EUI moved from 87.3 kBtu/ft² (2011) to 57.6 kBtu/ft² (2025), a 34% decrease. Reported emissions went from 4,231 tCO₂e to 2,173 tCO₂e over the same span (down 49%).

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 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. PARC 55 WYNDHAM San Francisco- Union Square's 57.6 kBtu/ft² across 698,660 sq ft works out to about 40.2 billion Btu (11,794 MWh-equivalent) in 2025. Its source EUI of 98.7 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 4,406,000 kWh of electricity and 247,320 therms of natural gas for the year.

Which law requires PARC 55 WYNDHAM San Francisco- Union Square to report its energy use?

PARC 55 WYNDHAM San Francisco- Union Square 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:0330/026:2025). San Francisco's ordinance requires annual benchmarking for commercial buildings over 10,000 sq ft, with administrative penalties for buildings that fail to report.