Hamilton Middle (Sps-District)

How does Hamilton Middle (Sps-District) compare with other K-12 school buildings in Seattle?

The latest disclosures cover 153 K-12 school buildings in Seattle, out of 3,871 buildings citywide. Hamilton Middle (Sps-District)'s ENERGY STAR score of 44 compares with an average of 71 across the 152 that report a score; it scores higher than 12% of them and lower than 88%. Its site EUI of 37.0 kBtu/ft² is roughly in line with the average of 38.3 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 half of the group average of 1.1 kgCO₂e/ft².

At 127,776 sq ft, it is about 61% above the average floor area of 79,329 sq ft for those buildings. It was built in 2010, 40 years later than the group's average year built (1970). Across all 24 jurisdictions BuildingCensus covers, the 6,548 K-12 school buildings average an ENERGY STAR score of 64 and a site EUI of 52.7 kBtu/ft².

How has Hamilton Middle (Sps-District)'s energy performance changed over time?

BuildingCensus holds 11 Seattle disclosures for Hamilton Middle (Sps-District), covering report years 2015–2025. Its ENERGY STAR score went from 82 in 2015 to 44 in 2025 (-38 points); its best year on file was 2015, at 82. Site EUI moved from 32.4 kBtu/ft² (2015) to 37.0 kBtu/ft² (2025), an 14% increase. Reported emissions went from 52 tCO₂e to 71 tCO₂e over the same span (up 38%).

What does an ENERGY STAR score of 44 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 44 means the building performs better than about 44% of its national peers. BuildingCensus bands the score into report-card grades; 44 falls in band D — lowest band (1–54). It sits 31 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. Hamilton Middle (Sps-District)'s 37.0 kBtu/ft² across 127,776 sq ft works out to about 4.7 billion Btu (1,386 MWh-equivalent) in 2025. Its source EUI of 90.1 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 1,098,678 kWh of electricity and 9,896 therms of natural gas for the year.

Which law requires Hamilton Middle (Sps-District) to report its energy use?

Hamilton Middle (Sps-District) 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:231:2025). 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.