THORNTON PLACE APTS BLD 3 (CHILD PROPERTY FOR #52046)

How does THORNTON PLACE APTS BLD 3 (CHILD PROPERTY FOR #52046) compare with other multifamily MR (5-9) buildings in Seattle?

The latest disclosures cover 22 multifamily MR (5-9) buildings in Seattle, out of 3,871 buildings citywide. THORNTON PLACE APTS BLD 3 (CHILD PROPERTY FOR #52046)'s ENERGY STAR score of 97 compares with an average of 91 across the 7 that report a score; it scores higher than 57% of them and lower than 29%. Its site EUI of 24.3 kBtu/ft² is about 38% below the average of 38.9 kBtu/ft² — it uses less energy per square foot than the typical building in that group. Its emissions intensity of 0.1 kgCO₂e/ft² is about 84% below the group average of 0.9 kgCO₂e/ft².

At 120,520 sq ft, it is roughly in line with the average floor area of 121,840 sq ft for those buildings. It was built in 2008, 8 years later than the group's average year built (2000).

How has THORNTON PLACE APTS BLD 3 (CHILD PROPERTY FOR #52046)'s energy performance changed over time?

BuildingCensus holds 9 Seattle disclosures for THORNTON PLACE APTS BLD 3 (CHILD PROPERTY FOR #52046), covering report years 2015–2023. Its ENERGY STAR score was 97 in both 2015 and 2023. Site EUI moved from 22.6 kBtu/ft² (2015) to 24.3 kBtu/ft² (2023), an 8% increase. Reported emissions went from 15 tCO₂e to 16 tCO₂e over the same span (up 7%).

What does an ENERGY STAR score of 97 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 97 means the building performs better than about 97% of its national peers. BuildingCensus bands the score into report-card grades; 97 falls in band A — high performer (85–100). 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. THORNTON PLACE APTS BLD 3 (CHILD PROPERTY FOR #52046)'s 24.3 kBtu/ft² across 120,520 sq ft works out to about 2.9 billion Btu (858 MWh-equivalent) in 2023. Its source EUI of 67.9 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 823,425 kWh of electricity for the year.

Which law requires THORNTON PLACE APTS BLD 3 (CHILD PROPERTY FOR #52046) to report its energy use?

THORNTON PLACE APTS BLD 3 (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:28734:2023). 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.