188 East Blaine
Laboratory in Seattle, WA · 188 E BLAINE ST · 98102
At a glance
188 East Blaine is a 310,584-square-foot laboratory building at 188 E BLAINE ST in Seattle, Washington, built in 2019. In its 2025 Seattle benchmarking disclosure it reported a site energy-use intensity of 158.9 kBtu/ft² and 877 tCO₂e of greenhouse-gas emissions.
Seattle Energy Benchmarking Ordinance (SMC 22.920) · reporting year 2025
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | — |
| Site EUI | 158.9 kBtu/ft² |
| Source EUI | 328.4 kBtu/ft² |
| GHG emissions | 877 tCO₂e |
| GHG intensity | 4.0 kgCO₂e/ft² |
| Electricity | 5,909,859 kWh |
| Natural gas | 145,400 therms |
| Gross floor area | 310,584 sq ft |
| Source record | seattle:50530:2025 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2025latest | — | 158.9 kBtu/ft² | 877 tCO₂e | |
| 2024 | — | 169.3 kBtu/ft² | 1,006 tCO₂e | |
| 2023 | — | 182.2 kBtu/ft² | 1,128 tCO₂e | |
| 2022 | — | 169.3 kBtu/ft² | 1,080 tCO₂e | |
| 2021 | — | 139.6 kBtu/ft² | 922 tCO₂e | |
| 2020 | — | 125.4 kBtu/ft² | 731 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
- 188 E BLAINE ST
- City
- Seattle
- State
- Washington
- ZIP
- 98102
- Coordinates
- 47.63506, -122.32614
Within ~1 km
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See also: most efficient in Seattle · biggest emitters
How does 188 East Blaine 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 158.9 kBtu/ft² is about 11% below the average of 178.6 kBtu/ft² — it uses less energy per square foot than the typical building in that group. Its emissions intensity of 4.0 kgCO₂e/ft² is about 13% below the group average of 4.6 kgCO₂e/ft².
At 310,584 sq ft, it is about 53% above the average floor area of 202,547 sq ft for those buildings. It was built in 2019, 33 years later than 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 188 East Blaine's energy performance changed over time?
BuildingCensus holds 6 Seattle disclosures for 188 East Blaine, covering report years 2020–2025. Site EUI moved from 125.4 kBtu/ft² (2020) to 158.9 kBtu/ft² (2025), an 27% increase. Reported emissions went from 731 tCO₂e to 877 tCO₂e over the same span (up 20%).
What does a site EUI of 158.9 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. 188 East Blaine's 158.9 kBtu/ft² across 310,584 sq ft works out to about 49.4 billion Btu (14,464 MWh-equivalent) in 2025. Its source EUI of 328.4 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 5,909,859 kWh of electricity and 145,400 therms of natural gas for the year.
Which law requires 188 East Blaine to report its energy use?
188 East Blaine 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:50530:2025). 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
- Seattle Children's Hospital (Jack R Mcdonald Building)· 299,070 sq ft · EUI 234.1 kBtu/ft²
- 1616 Eastlake Building· 281,306 sq ft · EUI 233.5 kBtu/ft²
- 401 Terry Ave (Institute For System Biology)· 258,505 sq ft · EUI 229.5 kBtu/ft²
- Cascadian Office Building· 211,066 sq ft · EUI 38.0 kBtu/ft²
- Virginia Mason - Benaroya Research Institute· 206,950 sq ft · EUI 142.6 kBtu/ft²
- Research & Training Building (Harborview) -· 181,930 sq ft · EUI 260.3 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 188 East Blaine's energy grade?
188 East Blaine did not report an ENERGY STAR score in its 2025 disclosure, but its site energy-use intensity was 158.9 kBtu/ft².
How much energy does 188 East Blaine use?
Its 2025 site energy-use intensity was 158.9 kBtu/ft² (328.4 kBtu/ft² source) across 310,584 sq ft, including 5,909,859 kWh of electricity and 145,400 therms of natural gas.
What are 188 East Blaine's carbon emissions?
188 East Blaine reported 877 tCO₂e of greenhouse-gas emissions (4.0 kgCO₂e/ft²) for 2025.
Where is 188 East Blaine?
188 East Blaine is at 188 E BLAINE ST, in Seattle, Washington 98102. Its coordinates are 47.63506, -122.32614 (latitude, longitude), as published in the Building Energy Benchmarking file.
How big is 188 East Blaine and when was it built?
188 East Blaine has 310,584 sq ft of gross floor area, as reported in its 2025 disclosure. The disclosure lists 2019 as its year built. It is classed as laboratory.
Is 188 East Blaine 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, “188 East Blaine, Seattle, Washington — 2025 benchmarking disclosure”, https://buildingcensus.com/buildings/seattle/188-east-blaine-2c9cb6aa (data as of October 2, 2026).