Terreno 1st Ave South

How does Terreno 1st Ave South compare with other non-refrigerated warehouse buildings in Seattle?

The latest disclosures cover 164 non-refrigerated warehouse buildings in Seattle, out of 3,871 buildings citywide. Terreno 1st Ave South's ENERGY STAR score of 75 compares with an average of 58 across the 117 that report a score; it scores higher than 63% of them and lower than 35%. Its site EUI of 25.4 kBtu/ft² is about 17% below the average of 30.5 kBtu/ft² — it uses less energy per square foot than the typical building in that group. Its emissions intensity of 0.7 kgCO₂e/ft² is about 18% below the group average of 0.9 kgCO₂e/ft².

At 234,144 sq ft, it is about 299% above the average floor area of 58,727 sq ft for those buildings. It was built in 1937, 23 years earlier than the group's average year built (1960). Across all 24 jurisdictions BuildingCensus covers, the 4,723 non-refrigerated warehouse buildings average an ENERGY STAR score of 66 and a site EUI of 26.0 kBtu/ft².

How has Terreno 1st Ave South's energy performance changed over time?

BuildingCensus holds 4 Seattle disclosures for Terreno 1st Ave South, covering report years 2022–2025. Its ENERGY STAR score went from 91 in 2022 to 75 in 2025 (-16 points); its best year on file was 2022, at 91. Site EUI moved from 20.0 kBtu/ft² (2022) to 25.4 kBtu/ft² (2025), an 27% increase. Reported emissions went from 205 tCO₂e to 173 tCO₂e over the same span (down 16%).

What does an ENERGY STAR score of 75 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 75 means the building performs better than about 75% of its national peers. BuildingCensus bands the score into report-card grades; 75 falls in band B — above median (70–84). 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. Terreno 1st Ave South's 25.4 kBtu/ft² across 234,144 sq ft works out to about 5.9 billion Btu (1,743 MWh-equivalent) in 2025. Its source EUI of 48.5 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 853,526 kWh of electricity and 30,399 therms of natural gas for the year.

Which law requires Terreno 1st Ave South to report its energy use?

Terreno 1st Ave South 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:220:2025). 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.