Park Tower 250 Howard

How does Park Tower 250 Howard 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. Park Tower 250 Howard's ENERGY STAR score of 72 compares with an average of 78 across the 790 that report a score; it scores higher than 27% of them and lower than 71%. Its site EUI of 57.7 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 3.2 kgCO₂e/ft² is about 19% above the group average of 2.7 kgCO₂e/ft².

At 908,361 sq ft, it is about 746% above the average floor area of 107,408 sq ft for those buildings. It was built in 2019, 78 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 Park Tower 250 Howard's energy performance changed over time?

BuildingCensus holds 5 San Francisco disclosures for Park Tower 250 Howard, covering report years 2021–2025. Its ENERGY STAR score went from 65 in 2022 to 72 in 2025 (+7 points). Site EUI moved from 61.2 kBtu/ft² (2021) to 57.7 kBtu/ft² (2025), a 6% decrease. Reported emissions went from 2,827 tCO₂e to 2,723 tCO₂e over the same span (down 4%).

What does an ENERGY STAR score of 72 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 72 means the building performs better than about 72% of its national peers. BuildingCensus bands the score into report-card grades; 72 falls in band B — above median (70–84). It sits 3 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. Park Tower 250 Howard's 57.7 kBtu/ft² across 908,361 sq ft works out to about 52.4 billion Btu (15,361 MWh-equivalent) in 2025. Its source EUI of 122.6 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 8,806,139 kWh of electricity and 189,307 therms of natural gas for the year.

Which law requires Park Tower 250 Howard to report its energy use?

Park Tower 250 Howard 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:3718/040:2025). San Francisco's ordinance requires annual benchmarking for commercial buildings over 10,000 sq ft, with administrative penalties for buildings that fail to report.