Skyline At First Hill

How does Skyline At First Hill compare with other multifamily housing buildings in Seattle?

The latest disclosures cover 1,971 multifamily housing buildings in Seattle, out of 3,871 buildings citywide. Skyline At First Hill's ENERGY STAR score of 65 compares with an average of 83 across the 1,652 that report a score; it scores higher than 14% of them and lower than 85%. Its site EUI of 52.6 kBtu/ft² is about 51% above the average of 34.9 kBtu/ft² — it uses more energy per square foot than the typical building in that group. Its emissions intensity of 1.1 kgCO₂e/ft² is about 56% above the group average of 0.7 kgCO₂e/ft².

At 629,615 sq ft, it is about 628% above the average floor area of 86,468 sq ft for those buildings. It was built in 2008, 25 years later than the group's average year built (1983). Across all 24 jurisdictions BuildingCensus covers, the 59,945 multifamily housing buildings average an ENERGY STAR score of 70 and a site EUI of 59.0 kBtu/ft².

How has Skyline At First Hill's energy performance changed over time?

BuildingCensus holds 11 Seattle disclosures for Skyline At First Hill, covering report years 2015–2025. Its ENERGY STAR score went from 9 in 2015 to 65 in 2025 (+56 points). Site EUI moved from 43.3 kBtu/ft² (2015) to 52.6 kBtu/ft² (2025), an 21% increase. Reported emissions went from 539 tCO₂e to 486 tCO₂e over the same span (down 10%).

What does an ENERGY STAR score of 65 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 65 means the building performs better than about 65% of its national peers. BuildingCensus bands the score into report-card grades; 65 falls in band C — below median (55–69). It sits 10 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. Skyline At First Hill's 52.6 kBtu/ft² across 629,615 sq ft works out to about 33.1 billion Btu (9,706 MWh-equivalent) in 2025. Its source EUI of 117.5 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 4,642,634 kWh of electricity and 75,852 therms of natural gas for the year.

Which law requires Skyline At First Hill to report its energy use?

Skyline At First Hill 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:23287:2025). 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.