Cosmopolitan Apartments (Retail And Apts/Condo)

How does Cosmopolitan Apartments (Retail And Apts/Condo) compare with other mixed use property buildings in Seattle?

The latest disclosures cover 157 mixed use property buildings in Seattle, out of 3,871 buildings citywide. Cosmopolitan Apartments (Retail And Apts/Condo)'s ENERGY STAR score of 64 compares with an average of 74 across the 29 that report a score; it scores higher than 24% of them and lower than 69%. Its site EUI of 44.0 kBtu/ft² is about 36% below the average of 68.7 kBtu/ft² — it uses less energy per square foot than the typical building in that group. Its emissions intensity of 0.6 kgCO₂e/ft² is about 55% below the group average of 1.4 kgCO₂e/ft².

At 126,153 sq ft, it is about 24% below the average floor area of 165,352 sq ft for those buildings. Its 1966 construction date is close to the group's average year built (1968). Across all 24 jurisdictions BuildingCensus covers, the 1,212 mixed use property buildings average an ENERGY STAR score of 69 and a site EUI of 79.8 kBtu/ft².

How has Cosmopolitan Apartments (Retail And Apts/Condo)'s energy performance changed over time?

BuildingCensus holds 11 Seattle disclosures for Cosmopolitan Apartments (Retail And Apts/Condo), covering report years 2015–2025. Its ENERGY STAR score went from 62 in 2015 to 64 in 2025 (+2 points); its best year on file was 2019, at 91. Site EUI moved from 45.7 kBtu/ft² (2015) to 44.0 kBtu/ft² (2025), a 4% decrease. Reported emissions went from 85 tCO₂e to 56 tCO₂e over the same span (down 33%).

What does an ENERGY STAR score of 64 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 64 means the building performs better than about 64% of its national peers. BuildingCensus bands the score into report-card grades; 64 falls in band C — below median (55–69). It sits 11 points below 75, the threshold for ENERGY STAR certification. 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. Cosmopolitan Apartments (Retail And Apts/Condo)'s 44.0 kBtu/ft² across 126,153 sq ft works out to about 5.6 billion Btu (1,627 MWh-equivalent) in 2025. Its source EUI of 109.1 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 945,425 kWh of electricity and 7,320 therms of natural gas for the year.

Which law requires Cosmopolitan Apartments (Retail And Apts/Condo) to report its energy use?

Cosmopolitan Apartments (Retail And Apts/Condo) 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:20899:2025). 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.