ANNARON

How does ANNARON compare with other multifamily LR (1-4) buildings in Seattle?

The latest disclosures cover 53 multifamily LR (1-4) buildings in Seattle, out of 3,871 buildings citywide. ANNARON's ENERGY STAR score of 72 compares with an average of 73 across the 25 that report a score; it scores higher than 40% of them and lower than 56%. Its site EUI of 30.5 kBtu/ft² is about 24% below the average of 40.1 kBtu/ft² — it uses less energy per square foot than the typical building in that group. Its emissions intensity of 0.2 kgCO₂e/ft² is about 80% below the group average of 0.9 kgCO₂e/ft².

At 20,296 sq ft, it is about 56% below the average floor area of 45,933 sq ft for those buildings. It was built in 1965, 11 years earlier than the group's average year built (1976).

How has ANNARON's energy performance changed over time?

BuildingCensus holds 9 Seattle disclosures for ANNARON, covering report years 2015–2023. Its ENERGY STAR score was 72 in both 2015 and 2023. Site EUI moved from 26.6 kBtu/ft² (2015) to 30.5 kBtu/ft² (2023), an 15% increase. Reported emissions went from 3 tCO₂e to 4 tCO₂e over the same span (up 17%).

What does an ENERGY STAR score of 72 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 72 means the building performs better than about 72% of its national peers. BuildingCensus bands the score into report-card grades; 72 falls in band B — above median (70–84). It sits 3 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. ANNARON's 30.5 kBtu/ft² across 20,296 sq ft works out to about 0.6 billion Btu (181 MWh-equivalent) in 2023. Its source EUI of 85.5 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 174,820 kWh of electricity for the year.

Which law requires ANNARON to report its energy use?

ANNARON 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:19799:2023). 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.