1551 Eastlake Bldg.
Laboratory in Seattle, WA · 1551 EASTLAKE AVE E · 98102
At a glance
1551 Eastlake Bldg. is a 158,600-square-foot laboratory building at 1551 EASTLAKE AVE E in Seattle, Washington, built in 1962. In its 2025 Seattle benchmarking disclosure it reported a site energy-use intensity of 148.4 kBtu/ft² and 218 tCO₂e of greenhouse-gas emissions.
Seattle Energy Benchmarking Ordinance (SMC 22.920) · reporting year 2025
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | — |
| Site EUI | 148.4 kBtu/ft² |
| Source EUI | 358.8 kBtu/ft² |
| GHG emissions | 218 tCO₂e |
| GHG intensity | 1.7 kgCO₂e/ft² |
| Electricity | 4,324,301 kWh |
| Natural gas | 41,304 therms |
| Gross floor area | 158,600 sq ft |
| Source record | seattle:449:2025 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2025latest | — | 148.4 kBtu/ft² | 218 tCO₂e | |
| 2024 | 7 | ±0 | 167.4 kBtu/ft² | 304 tCO₂e |
| 2023 | 7 | -2 | 196.8 kBtu/ft² | 326 tCO₂e |
| 2022 | 9 | +1 | 183.6 kBtu/ft² | 301 tCO₂e |
| 2021 | 8 | +4 | 191.0 kBtu/ft² | 304 tCO₂e |
| 2020 | 4 | -9 | 201.1 kBtu/ft² | 320 tCO₂e |
| 2019 | 13 | -3 | 197.9 kBtu/ft² | 329 tCO₂e |
| 2018 | 16 | -2 | 172.7 kBtu/ft² | 250 tCO₂e |
| 2017 | 18 | -1 | 133.7 kBtu/ft² | 255 tCO₂e |
| 2016 | 19 | -6 | 125.6 kBtu/ft² | 218 tCO₂e |
| 2015 | 25 | 114.1 kBtu/ft² | 172 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.
Own or manage this building? Claim it to correct the record and get compliance alerts.
Location
- Address
- 1551 EASTLAKE AVE E
- City
- Seattle
- State
- Washington
- ZIP
- 98102
- Coordinates
- 47.63349, -122.32634
Within ~1 km
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See also: most efficient in Seattle · biggest emitters
How does 1551 Eastlake Bldg. 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 148.4 kBtu/ft² is about 17% 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 1.7 kgCO₂e/ft² is about 63% below the group average of 4.6 kgCO₂e/ft².
At 158,600 sq ft, it is about 22% below the average floor area of 202,547 sq ft for those buildings. It was built in 1962, 24 years earlier 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 1551 Eastlake Bldg.'s energy performance changed over time?
BuildingCensus holds 11 Seattle disclosures for 1551 Eastlake Bldg., covering report years 2015–2025. Its ENERGY STAR score went from 25 in 2015 to 7 in 2024 (-18 points); its best year on file was 2015, at 25. Site EUI moved from 114.1 kBtu/ft² (2015) to 148.4 kBtu/ft² (2025), an 30% increase. Reported emissions went from 172 tCO₂e to 218 tCO₂e over the same span (up 27%).
What does a site EUI of 148.4 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. 1551 Eastlake Bldg.'s 148.4 kBtu/ft² across 158,600 sq ft works out to about 23.5 billion Btu (6,898 MWh-equivalent) in 2025. Its source EUI of 358.8 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 4,324,301 kWh of electricity and 41,304 therms of natural gas for the year.
Which law requires 1551 Eastlake Bldg. to report its energy use?
1551 Eastlake Bldg. 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:449:2025). 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
- Uw Benjamin Hall Interdisciplinary R&T· 143,439 sq ft · EUI 143.5 kBtu/ft²
- Eleven 65· 132,347 sq ft · EUI 143.5 kBtu/ft²
- 1208 Eastlake Ave E (Dendreon)· 128,408 sq ft · EUI 342.2 kBtu/ft²
- Brotman Building D: UW Medicine Research· 102,235 sq ft · EUI 248.4 kBtu/ft²
- Airport Way Ctr - Bldg A· 99,122 sq ft · EUI 124.2 kBtu/ft²
- 1100 Olive Building Targeted Genetics· 66,588 sq ft · EUI 102.6 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 1551 Eastlake Bldg.'s energy grade?
1551 Eastlake Bldg. did not report an ENERGY STAR score in its 2025 disclosure, but its site energy-use intensity was 148.4 kBtu/ft².
How much energy does 1551 Eastlake Bldg. use?
Its 2025 site energy-use intensity was 148.4 kBtu/ft² (358.8 kBtu/ft² source) across 158,600 sq ft, including 4,324,301 kWh of electricity and 41,304 therms of natural gas.
What are 1551 Eastlake Bldg.'s carbon emissions?
1551 Eastlake Bldg. reported 218 tCO₂e of greenhouse-gas emissions (1.7 kgCO₂e/ft²) for 2025.
Where is 1551 Eastlake Bldg.?
1551 Eastlake Bldg. is at 1551 EASTLAKE AVE E, in Seattle, Washington 98102. Its coordinates are 47.63349, -122.32634 (latitude, longitude), as published in the Building Energy Benchmarking file.
How big is 1551 Eastlake Bldg. and when was it built?
1551 Eastlake Bldg. has 158,600 sq ft of gross floor area, as reported in its 2025 disclosure. The disclosure lists 1962 as its year built. It is classed as laboratory.
Is 1551 Eastlake Bldg. 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, “1551 Eastlake Bldg., Seattle, Washington — 2025 benchmarking disclosure”, https://buildingcensus.com/buildings/seattle/1551-eastlake-bldg-d05ff123 (data as of October 2, 2026).