401 Elliott West
Parking in Seattle, WA · 401 ELLIOTT AVE W · 98119
At a glance
401 Elliott West is a 129,551-square-foot parking building at 401 ELLIOTT AVE W in Seattle, Washington, built in 2000. In its 2025 Seattle benchmarking disclosure it reported a site energy-use intensity of 48.8 kBtu/ft² and 24 tCO₂e of greenhouse-gas emissions.
Seattle Energy Benchmarking Ordinance (SMC 22.920) · reporting year 2025
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | — |
| Site EUI | 48.8 kBtu/ft² |
| Source EUI | 136.6 kBtu/ft² |
| GHG emissions | 24 tCO₂e |
| GHG intensity | 0.3 kgCO₂e/ft² |
| Electricity | 1,222,169 kWh |
| Gross floor area | 129,551 sq ft |
| Source record | seattle:704:2025 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2025latest | — | 48.8 kBtu/ft² | 24 tCO₂e | |
| 2024 | — | 66.3 kBtu/ft² | 33 tCO₂e | |
| 2023 | — | 26.6 kBtu/ft² | 13 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
- 401 ELLIOTT AVE W
- City
- Seattle
- State
- Washington
- ZIP
- 98119
- Coordinates
- 47.62235, -122.36378
Within ~1 km
Nearby benchmarked buildings
- 635 ELLIOTT - SOUTH BUILDINGscore 65
Office · 291,176 sq ft
- Avalon Queen Annescore 98
Multifamily Housing · 290,520 sq ft
- 3131 Elliott Bldgscore 77
Office · 277,486 sq ft
- Elliott Bay Office Parkscore 97
Office · 275,734 sq ft
Office · 253,103 sq ft
- 645 Elliott - North Buildingscore —
Mixed Use Property · 242,686 sq ft
See also: most efficient in Seattle · biggest emitters
How does 401 Elliott West compare with other parking buildings in Seattle?
The latest disclosures cover 21 parking buildings in Seattle, out of 3,871 buildings citywide. Its site EUI of 48.8 kBtu/ft² is about half of the average of 100.3 kBtu/ft² — it uses less energy per square foot than the typical building in that group. Its emissions intensity of 0.3 kgCO₂e/ft² is about 89% below the group average of 2.5 kgCO₂e/ft².
At 129,551 sq ft, it is about 65% below the average floor area of 368,027 sq ft for those buildings. Its 2000 construction date is close to the group's average year built (2000). Across all 24 jurisdictions BuildingCensus covers, the 1,071 parking buildings average an ENERGY STAR score of 67 and a site EUI of 40.3 kBtu/ft².
How has 401 Elliott West's energy performance changed over time?
BuildingCensus holds 3 Seattle disclosures for 401 Elliott West, covering report years 2023–2025. Site EUI moved from 26.6 kBtu/ft² (2023) to 48.8 kBtu/ft² (2025), an 83% increase. Reported emissions went from 13 tCO₂e to 24 tCO₂e over the same span (up 79%).
What does a site EUI of 48.8 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. 401 Elliott West's 48.8 kBtu/ft² across 129,551 sq ft works out to about 6.3 billion Btu (1,853 MWh-equivalent) in 2025. Its source EUI of 136.6 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 1,222,169 kWh of electricity for the year.
Which law requires 401 Elliott West to report its energy use?
401 Elliott West 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:704:2025). 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 parking buildings in Seattle
- The Innovation Center (Mckinstry)· 127,065 sq ft · EUI 84.6 kBtu/ft²
- Hillclimb Court Condominium· 124,260 sq ft · EUI 38.7 kBtu/ft²
- University Audi Seattle Uva Bldg· 122,680 sq ft · EUI 45.5 kBtu/ft²
- Seattle -Prep Ignatius Hall And Parking Garage· 85,750 sq ft · EUI 38.7 kBtu/ft²
- Pacific Rim Center Commercial· 54,969 sq ft · EUI 109.7 kBtu/ft²
- 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 401 Elliott West's energy grade?
401 Elliott West did not report an ENERGY STAR score in its 2025 disclosure, but its site energy-use intensity was 48.8 kBtu/ft².
How much energy does 401 Elliott West use?
Its 2025 site energy-use intensity was 48.8 kBtu/ft² (136.6 kBtu/ft² source) across 129,551 sq ft, including 1,222,169 kWh of electricity.
What are 401 Elliott West's carbon emissions?
401 Elliott West reported 24 tCO₂e of greenhouse-gas emissions (0.3 kgCO₂e/ft²) for 2025.
Where is 401 Elliott West?
401 Elliott West is at 401 ELLIOTT AVE W, in Seattle, Washington 98119. Its coordinates are 47.62235, -122.36378 (latitude, longitude), as published in the Building Energy Benchmarking file.
How big is 401 Elliott West and when was it built?
401 Elliott West has 129,551 sq ft of gross floor area, as reported in its 2025 disclosure. The disclosure lists 2000 as its year built. It is classed as parking.
Is 401 Elliott West 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, “401 Elliott West, Seattle, Washington — 2025 benchmarking disclosure”, https://buildingcensus.com/buildings/seattle/401-elliott-west-edf604cd (data as of October 2, 2026).