Northwest Outpatient Medical Center

How does Northwest Outpatient Medical Center compare with other medical office buildings in Seattle?

The latest disclosures cover 45 medical office buildings in Seattle, out of 3,871 buildings citywide. Northwest Outpatient Medical Center's ENERGY STAR score of 24 compares with an average of 60 across the 32 that report a score; it scores higher than 13% of them and lower than 84%. Its site EUI of 157.5 kBtu/ft² is about 78% above the average of 88.3 kBtu/ft² — it uses more energy per square foot than the typical building in that group. Its emissions intensity of 3.9 kgCO₂e/ft² is about 159% above the group average of 1.5 kgCO₂e/ft².

At 133,298 sq ft, it is roughly in line with the average floor area of 145,612 sq ft for those buildings. It was built in 1961, 18 years earlier than the group's average year built (1979). Across all 24 jurisdictions BuildingCensus covers, the 1,266 medical office buildings average an ENERGY STAR score of 64 and a site EUI of 92.2 kBtu/ft².

How has Northwest Outpatient Medical Center's energy performance changed over time?

BuildingCensus holds 11 Seattle disclosures for Northwest Outpatient Medical Center, covering report years 2015–2025. Its ENERGY STAR score went from 34 in 2015 to 24 in 2025 (-10 points); its best year on file was 2015, at 34. Site EUI moved from 111.7 kBtu/ft² (2015) to 157.5 kBtu/ft² (2025), an 41% increase. Reported emissions went from 280 tCO₂e to 517 tCO₂e over the same span (up 85%).

What does an ENERGY STAR score of 24 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 24 means the building performs better than about 24% of its national peers. BuildingCensus bands the score into report-card grades; 24 falls in band D — lowest band (1–54). It sits 51 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. Northwest Outpatient Medical Center's 157.5 kBtu/ft² across 133,298 sq ft works out to about 21 billion Btu (6,153 MWh-equivalent) in 2025. Its source EUI of 330.6 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 3,688,810 kWh of electricity and 84,074 therms of natural gas for the year.

Which law requires Northwest Outpatient Medical Center to report its energy use?

Northwest Outpatient Medical Center 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:585:2025). 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.