Cascadian Office Building
Laboratory in Seattle, WA · 330 YALE AVE N · 98109
At a glance
Cascadian Office Building is a 211,066-square-foot laboratory building at 330 YALE AVE N in Seattle, Washington, built in 2021. In its 2025 Seattle benchmarking disclosure it reported a site energy-use intensity of 38.0 kBtu/ft² and 43 tCO₂e of greenhouse-gas emissions.
Seattle Energy Benchmarking Ordinance (SMC 22.920) · reporting year 2025
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | — |
| Site EUI | 38.0 kBtu/ft² |
| Source EUI | 106.5 kBtu/ft² |
| GHG emissions | 43 tCO₂e |
| GHG intensity | 0.2 kgCO₂e/ft² |
| Electricity | 2,375,942 kWh |
| Gross floor area | 211,066 sq ft |
| Source record | seattle:24568:2025 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2025latest | — | 38.0 kBtu/ft² | 43 tCO₂e | |
| 2024 | — | 47.2 kBtu/ft² | 58 tCO₂e | |
| 2023 | — | 67.8 kBtu/ft² | 84 tCO₂e | |
| 2022 | — | — | — |
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
- 330 YALE AVE N
- City
- Seattle
- State
- Washington
- ZIP
- 98109
- Coordinates
- 47.62175, -122.33005
Within ~1 km
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See also: most efficient in Seattle · biggest emitters
How does Cascadian Office Building 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 38.0 kBtu/ft² is about 79% 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 0.2 kgCO₂e/ft² is about 96% below the group average of 4.6 kgCO₂e/ft².
At 211,066 sq ft, it is roughly in line with the average floor area of 202,547 sq ft for those buildings. It was built in 2021, 35 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 Cascadian Office Building's energy performance changed over time?
BuildingCensus holds 4 Seattle disclosures for Cascadian Office Building, covering report years 2022–2025. Site EUI moved from 67.8 kBtu/ft² (2023) to 38.0 kBtu/ft² (2025), a 44% decrease. Reported emissions went from 84 tCO₂e to 43 tCO₂e over the same span (down 49%).
What does a site EUI of 38.0 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. Cascadian Office Building's 38.0 kBtu/ft² across 211,066 sq ft works out to about 8 billion Btu (2,351 MWh-equivalent) in 2025. Its source EUI of 106.5 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 2,375,942 kWh of electricity for the year.
Which law requires Cascadian Office Building to report its energy use?
Cascadian Office Building 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:24568:2025). 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
- 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
- Gilead Sciences Bldg. (Alexandria R.e.) Econ. Uni· 175,918 sq ft · EUI 160.4 kBtu/ft²
- 1201 Eastlake Ave E (Zymogenetics)· 169,785 sq ft · EUI 222.0 kBtu/ft²
- Elliott West Bldg 3 - Cell Therepeutics/Admin. Off· 165,111 sq ft · EUI 62.3 kBtu/ft²
- 1551 Eastlake Bldg.· 158,600 sq ft · EUI 148.4 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 Cascadian Office Building's energy grade?
Cascadian Office Building did not report an ENERGY STAR score in its 2025 disclosure, but its site energy-use intensity was 38.0 kBtu/ft².
How much energy does Cascadian Office Building use?
Its 2025 site energy-use intensity was 38.0 kBtu/ft² (106.5 kBtu/ft² source) across 211,066 sq ft, including 2,375,942 kWh of electricity.
What are Cascadian Office Building's carbon emissions?
Cascadian Office Building reported 43 tCO₂e of greenhouse-gas emissions (0.2 kgCO₂e/ft²) for 2025.
Where is Cascadian Office Building?
Cascadian Office Building is at 330 YALE AVE N, in Seattle, Washington 98109. Its coordinates are 47.62175, -122.33005 (latitude, longitude), as published in the Building Energy Benchmarking file.
How big is Cascadian Office Building and when was it built?
Cascadian Office Building has 211,066 sq ft of gross floor area, as reported in its 2025 disclosure. The disclosure lists 2021 as its year built. It is classed as laboratory.
Is Cascadian Office Building 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, “Cascadian Office Building, Seattle, Washington — 2025 benchmarking disclosure”, https://buildingcensus.com/buildings/seattle/cascadian-office-building-7ea73df0 (data as of October 2, 2026).