THORNTON PLACE APTS BLD 4 (CHILD PROPERTY FOR #52046)

How does THORNTON PLACE APTS BLD 4 (CHILD PROPERTY FOR #52046) compare with other multifamily LR (1-4) buildings in Seattle?

The latest disclosures cover 53 multifamily LR (1-4) buildings in Seattle, out of 3,871 buildings citywide. THORNTON PLACE APTS BLD 4 (CHILD PROPERTY FOR #52046)'s ENERGY STAR score of 64 compares with an average of 73 across the 25 that report a score; it scores higher than 32% of them and lower than 64%. Its site EUI of 44.3 kBtu/ft² is about 10% above the average of 40.1 kBtu/ft² — it uses more energy per square foot than the typical building in that group. Its emissions intensity of 1.4 kgCO₂e/ft² is about 54% above the group average of 0.9 kgCO₂e/ft².

At 102,522 sq ft, it is about 123% above the average floor area of 45,933 sq ft for those buildings. It was built in 2008, 32 years later than the group's average year built (1976).

How has THORNTON PLACE APTS BLD 4 (CHILD PROPERTY FOR #52046)'s energy performance changed over time?

BuildingCensus holds 9 Seattle disclosures for THORNTON PLACE APTS BLD 4 (CHILD PROPERTY FOR #52046), covering report years 2015–2023. Its ENERGY STAR score went from 1 in 2015 to 64 in 2023 (+63 points); its best year on file was 2021, at 95. Site EUI moved from 133.2 kBtu/ft² (2015) to 44.3 kBtu/ft² (2023), a 67% decrease. Reported emissions went from 543 tCO₂e to 152 tCO₂e over the same span (down 72%).

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. THORNTON PLACE APTS BLD 4 (CHILD PROPERTY FOR #52046)'s 44.3 kBtu/ft² across 102,522 sq ft works out to about 4.5 billion Btu (1,331 MWh-equivalent) in 2023. Its source EUI of 82.2 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 653,987 kWh of electricity and 26,313 therms of natural gas for the year.

Which law requires THORNTON PLACE APTS BLD 4 (CHILD PROPERTY FOR #52046) to report its energy use?

THORNTON PLACE APTS BLD 4 (CHILD PROPERTY FOR #52046) 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 2023 disclosure (source record seattle:28735:2023). 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.