One Pacific Towers Condominium

How does One Pacific Towers Condominium compare with other multifamily housing buildings in Seattle?

The latest disclosures cover 1,971 multifamily housing buildings in Seattle, out of 3,871 buildings citywide. One Pacific Towers Condominium's ENERGY STAR score of 81 compares with an average of 83 across the 1,652 that report a score; it scores higher than 31% of them and lower than 68%. Its site EUI of 42.7 kBtu/ft² is about 22% above the average of 34.9 kBtu/ft² — it uses more energy per square foot than the typical building in that group. Its emissions intensity of 1.0 kgCO₂e/ft² is about 49% above the group average of 0.7 kgCO₂e/ft².

At 191,427 sq ft, it is about 121% above the average floor area of 86,468 sq ft for those buildings. It was built in 1994, 11 years later than the group's average year built (1983). Across all 24 jurisdictions BuildingCensus covers, the 59,945 multifamily housing buildings average an ENERGY STAR score of 70 and a site EUI of 59.0 kBtu/ft².

How has One Pacific Towers Condominium's energy performance changed over time?

BuildingCensus holds 11 Seattle disclosures for One Pacific Towers Condominium, covering report years 2015–2025. Its ENERGY STAR score went from 45 in 2015 to 81 in 2025 (+36 points); its best year on file was 2021, at 100. Site EUI moved from 53.4 kBtu/ft² (2015) to 42.7 kBtu/ft² (2025), a 20% decrease. Reported emissions went from 257 tCO₂e to 180 tCO₂e over the same span (down 30%).

What does an ENERGY STAR score of 81 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 81 means the building performs better than about 81% of its national peers. BuildingCensus bands the score into report-card grades; 81 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 Seattle, 69% 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. One Pacific Towers Condominium's 42.7 kBtu/ft² across 191,427 sq ft works out to about 8.2 billion Btu (2,396 MWh-equivalent) in 2025. Its source EUI of 96.4 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 1,461,830 kWh of electricity and 14,248 therms of natural gas for the year.

Which law requires One Pacific Towers Condominium to report its energy use?

One Pacific Towers Condominium reports under the Seattle Energy Benchmarking Ordinance (SMC 22.920), the legal basis of Seattle's Building Energy Benchmarking program, which publishes each covered building's annual benchmarking results. The record shown here is the report-year 2025 disclosure (source record seattle:25354:2025). Seattle's Building Emissions Performance Standard (adopted 2023) applies to buildings over 20,000 sq ft: benchmarking verification is due 2027–2030 and initial emissions targets 2031–2035, reaching net zero by 2041–2050, with fines for non-compliance.