Environmental Lab - King County
Laboratory in Seattle, WA · 322 W EWING ST · 98119
At a glance
Environmental Lab - King County is a 46,024-square-foot laboratory building at 322 W EWING ST in Seattle, Washington, built in 1985. In its 2025 Seattle benchmarking disclosure it reported a site energy-use intensity of 294.5 kBtu/ft² and 276 tCO₂e of greenhouse-gas emissions.
Seattle Energy Benchmarking Ordinance (SMC 22.920) · reporting year 2025
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | — |
| Site EUI | 294.5 kBtu/ft² |
| Source EUI | 588.5 kBtu/ft² |
| GHG emissions | 276 tCO₂e |
| GHG intensity | 7.6 kgCO₂e/ft² |
| Electricity | 1,695,302 kWh |
| Natural gas | 48,940 therms |
| Gross floor area | 46,024 sq ft |
| Source record | seattle:28086:2025 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2025latest | — | 294.5 kBtu/ft² | 276 tCO₂e | |
| 2024 | — | 259.2 kBtu/ft² | 229 tCO₂e | |
| 2023 | — | 326.5 kBtu/ft² | 350 tCO₂e | |
| 2022 | — | 327.5 kBtu/ft² | 363 tCO₂e | |
| 2021 | — | 312.4 kBtu/ft² | 333 tCO₂e | |
| 2020 | — | 288.2 kBtu/ft² | 306 tCO₂e | |
| 2019 | — | 291.1 kBtu/ft² | 314 tCO₂e | |
| 2018 | — | 273.9 kBtu/ft² | 279 tCO₂e | |
| 2017 | — | 307.8 kBtu/ft² | 345 tCO₂e | |
| 2016 | — | 218.3 kBtu/ft² | 249 tCO₂e | |
| 2015 | — | 232.4 kBtu/ft² | 266 tCO₂e |
Compliance context
Seattle Energy Benchmarking Ordinance (SMC 22.920)
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.
Ownership
No owning organisation shown. Names of private individuals in the disclosure are not published here.
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Location
- Address
- 322 W EWING ST
- City
- Seattle
- State
- Washington
- ZIP
- 98119
- Coordinates
- 47.65223, -122.36147
Within ~1 km
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See also: most efficient in Seattle · biggest emitters
How does Environmental Lab - King County compare with other laboratory buildings in Seattle?
The latest disclosures cover 32 laboratory buildings in Seattle, out of 3,871 buildings citywide. Its site EUI of 294.5 kBtu/ft² is about 65% above the average of 178.6 kBtu/ft² — it uses more energy per square foot than the typical building in that group. Its emissions intensity of 7.6 kgCO₂e/ft² is about 65% above the group average of 4.6 kgCO₂e/ft².
At 46,024 sq ft, it is about 77% below the average floor area of 202,547 sq ft for those buildings. Its 1985 construction date is close to the group's average year built (1986). Across all 24 jurisdictions BuildingCensus covers, the 795 laboratory buildings average an ENERGY STAR score of 29 and a site EUI of 231.7 kBtu/ft².
How has Environmental Lab - King County's energy performance changed over time?
BuildingCensus holds 11 Seattle disclosures for Environmental Lab - King County, covering report years 2015–2025. Site EUI moved from 232.4 kBtu/ft² (2015) to 294.5 kBtu/ft² (2025), an 27% increase. Reported emissions went from 266 tCO₂e to 276 tCO₂e over the same span (up 4%).
What does a site EUI of 294.5 kBtu/ft² mean?
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. Environmental Lab - King County's 294.5 kBtu/ft² across 46,024 sq ft works out to about 13.6 billion Btu (3,972 MWh-equivalent) in 2025. Its source EUI of 588.5 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 1,695,302 kWh of electricity and 48,940 therms of natural gas for the year.
Which law requires Environmental Lab - King County to report its energy use?
Environmental Lab - King County 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:28086:2025). 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.
More laboratory buildings in Seattle
- Pacific Northwest Research Lab· 45,780 sq ft · EUI 273.1 kBtu/ft²
- Terry Bldg· 41,466 sq ft · score 1 (D)
- Alexandria Biotech· 34,416 sq ft · EUI 183.9 kBtu/ft²
- Gateway Plaza Office Bldg· 33,580 sq ft · EUI 86.5 kBtu/ft²
- Bowman Building· 33,576 sq ft · EUI 223.8 kBtu/ft²
- Airport Way Ctr - Bldg E· 23,100 sq ft · EUI 145.5 kBtu/ft²
- Laboratory buildings in Seattle· 32 benchmarked
- All Seattle benchmarked buildings· Seattle Energy Benchmarking Ordinance (SMC 22.920)
- Most efficient large buildings in Seattle
- Least efficient large buildings in Seattle
- Biggest emitters in Seattle
Frequently asked questions
What is Environmental Lab - King County's energy grade?
Environmental Lab - King County did not report an ENERGY STAR score in its 2025 disclosure, but its site energy-use intensity was 294.5 kBtu/ft².
How much energy does Environmental Lab - King County use?
Its 2025 site energy-use intensity was 294.5 kBtu/ft² (588.5 kBtu/ft² source) across 46,024 sq ft, including 1,695,302 kWh of electricity and 48,940 therms of natural gas.
What are Environmental Lab - King County's carbon emissions?
Environmental Lab - King County reported 276 tCO₂e of greenhouse-gas emissions (7.6 kgCO₂e/ft²) for 2025.
Where is Environmental Lab - King County?
Environmental Lab - King County is at 322 W EWING ST, in Seattle, Washington 98119. Its coordinates are 47.65223, -122.36147 (latitude, longitude), as published in the Building Energy Benchmarking file.
How big is Environmental Lab - King County and when was it built?
Environmental Lab - King County has 46,024 sq ft of gross floor area, as reported in its 2025 disclosure. The disclosure lists 1985 as its year built. It is classed as laboratory.
Is Environmental Lab - King County covered by the Seattle Energy Benchmarking Ordinance (SMC 22.920)?
Yes — it appears in the 2025 Building Energy Benchmarking disclosure, which lists the buildings reporting under the Seattle Energy Benchmarking Ordinance (SMC 22.920).
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About this data
Source: Building Energy Benchmarking (Seattle Energy Benchmarking Ordinance (SMC 22.920)), as published October 2, 2026. See the methodology for how records are matched, cleaned and scored.
Cite as: BuildingCensus, “Environmental Lab - King County, Seattle, Washington — 2025 benchmarking disclosure”, https://buildingcensus.com/buildings/seattle/environmental-lab-king-county-affe85ce (data as of October 2, 2026).