Aegis Living On Madison

How does Aegis Living On Madison compare with other senior living community buildings in Seattle?

The latest disclosures cover 48 senior living community buildings in Seattle, out of 3,871 buildings citywide. Aegis Living On Madison's ENERGY STAR score of 87 compares with an average of 72 across the 40 that report a score; it scores higher than 53% of them and lower than 45%. Its site EUI of 68.3 kBtu/ft² is roughly in line with the average of 66.7 kBtu/ft². Its emissions intensity of 1.7 kgCO₂e/ft² is roughly in line with the group average of 1.7 kgCO₂e/ft².

At 79,805 sq ft, it is about 42% below the average floor area of 136,458 sq ft for those buildings. It was built in 2013, 22 years later than the group's average year built (1991). Across all 24 jurisdictions BuildingCensus covers, the 1,181 senior living community buildings average an ENERGY STAR score of 71 and a site EUI of 73.6 kBtu/ft².

How has Aegis Living On Madison's energy performance changed over time?

BuildingCensus holds 11 Seattle disclosures for Aegis Living On Madison, covering report years 2015–2025. Its ENERGY STAR score went from 28 in 2015 to 87 in 2025 (+59 points). Site EUI moved from 92.3 kBtu/ft² (2015) to 68.3 kBtu/ft² (2025), a 26% decrease. Reported emissions went from 170 tCO₂e to 141 tCO₂e over the same span (down 17%).

What does an ENERGY STAR score of 87 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 87 means the building performs better than about 87% of its national peers. BuildingCensus bands the score into report-card grades; 87 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. Aegis Living On Madison's 68.3 kBtu/ft² across 79,805 sq ft works out to about 5.5 billion Btu (1,597 MWh-equivalent) in 2025. Its source EUI of 144.3 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 1,035,478 kWh of electricity and 22,818 therms of natural gas for the year.

Which law requires Aegis Living On Madison to report its energy use?

Aegis Living On Madison 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:49829:2025). 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.