South Seattle Industrial Park - Bldg C

How does South Seattle Industrial Park - Bldg C compare with other office buildings in Seattle?

The latest disclosures cover 497 office buildings in Seattle, out of 3,871 buildings citywide. South Seattle Industrial Park - Bldg C's ENERGY STAR score of 23 compares with an average of 76 across the 378 that report a score; it scores higher than 4% of them and lower than 95%. Its site EUI of 56.5 kBtu/ft² is about 26% above the average of 44.8 kBtu/ft² — it uses more energy per square foot than the typical building in that group. Its emissions intensity of 0.3 kgCO₂e/ft² is about half of the group average of 0.7 kgCO₂e/ft².

At 24,221 sq ft, it is about 88% below the average floor area of 196,452 sq ft for those buildings. It was built in 1983, 18 years later than the group's average year built (1965). Across all 24 jurisdictions BuildingCensus covers, the 15,264 office buildings average an ENERGY STAR score of 73 and a site EUI of 59.3 kBtu/ft².

How has South Seattle Industrial Park - Bldg C's energy performance changed over time?

BuildingCensus holds 11 Seattle disclosures for South Seattle Industrial Park - Bldg C, covering report years 2015–2025. Its ENERGY STAR score went from 11 in 2015 to 23 in 2025 (+12 points); its best year on file was 2018, at 39. Site EUI moved from 64.6 kBtu/ft² (2015) to 56.5 kBtu/ft² (2025), a 13% decrease. Reported emissions went from 9 tCO₂e to 8 tCO₂e over the same span (down 13%).

What does an ENERGY STAR score of 23 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 23 means the building performs better than about 23% of its national peers. BuildingCensus bands the score into report-card grades; 23 falls in band D — lowest band (1–54). It sits 52 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. South Seattle Industrial Park - Bldg C's 56.5 kBtu/ft² across 24,221 sq ft works out to about 1.4 billion Btu (401 MWh-equivalent) in 2025. Its source EUI of 158.2 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 400,964 kWh of electricity for the year.

Which law requires South Seattle Industrial Park - Bldg C to report its energy use?

South Seattle Industrial Park - Bldg C 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:23836:2025). 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.