WA 1503 3RD AVE W - W00322
Data Center in Seattle, WA · 1503 3RD AVE W · 98119
At a glance
WA 1503 3RD AVE W - W00322 is a 36,771-square-foot data center in Seattle, Washington, built in 1956. In its 2025 Seattle benchmarking disclosure it reported a site energy-use intensity of 111.8 kBtu/ft² and 23 tCO₂e of greenhouse-gas emissions.
Seattle Energy Benchmarking Ordinance (SMC 22.920) · reporting year 2025
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | — |
| Site EUI | 111.8 kBtu/ft² |
| Source EUI | 313.1 kBtu/ft² |
| GHG emissions | 23 tCO₂e |
| GHG intensity | 0.7 kgCO₂e/ft² |
| Electricity | 1,155,248 kWh |
| Gross floor area | 36,771 sq ft |
| Source record | seattle:27456:2025 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2025latest | — | 111.8 kBtu/ft² | 23 tCO₂e | |
| 2024 | — | 107.5 kBtu/ft² | 24 tCO₂e | |
| 2023 | — | 126.0 kBtu/ft² | 28 tCO₂e | |
| 2022 | — | 130.7 kBtu/ft² | 29 tCO₂e | |
| 2021 | — | 132.5 kBtu/ft² | 30 tCO₂e | |
| 2020 | — | 146.1 kBtu/ft² | 30 tCO₂e | |
| 2019 | — | 150.3 kBtu/ft² | 30 tCO₂e | |
| 2018 | — | 157.2 kBtu/ft² | 32 tCO₂e | |
| 2017 | — | 153.6 kBtu/ft² | 31 tCO₂e | |
| 2016 | — | 156.3 kBtu/ft² | 32 tCO₂e | |
| 2015 | — | 157.8 kBtu/ft² | 32 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
- 1503 3RD AVE W
- City
- Seattle
- State
- Washington
- ZIP
- 98119
- Coordinates
- 47.63257, -122.36141
Within ~1 km
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See also: most efficient in Seattle · biggest emitters
How does WA 1503 3RD AVE W - W00322 compare with other data center buildings in Seattle?
The latest disclosures cover 13 data center buildings in Seattle, out of 3,871 buildings citywide. Its site EUI of 111.8 kBtu/ft² is about 68% below the average of 348.3 kBtu/ft² — it uses less energy per square foot than the typical building in that group. Its emissions intensity of 0.7 kgCO₂e/ft² is about 70% below the group average of 2.2 kgCO₂e/ft².
At 36,771 sq ft, it is about 63% below the average floor area of 99,697 sq ft for those buildings. Its 1956 construction date is close to the group's average year built (1955). Across all 24 jurisdictions BuildingCensus covers, the 267 data center buildings average an ENERGY STAR score of 68 and a site EUI of 504.4 kBtu/ft².
How has WA 1503 3RD AVE W - W00322's energy performance changed over time?
BuildingCensus holds 11 Seattle disclosures for WA 1503 3RD AVE W - W00322, covering report years 2015–2025. Site EUI moved from 157.8 kBtu/ft² (2015) to 111.8 kBtu/ft² (2025), a 29% decrease. Reported emissions went from 32 tCO₂e to 23 tCO₂e over the same span (down 28%).
What does a site EUI of 111.8 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. WA 1503 3RD AVE W - W00322's 111.8 kBtu/ft² across 36,771 sq ft works out to about 4.1 billion Btu (1,205 MWh-equivalent) in 2025. Its source EUI of 313.1 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 1,155,248 kWh of electricity for the year.
Which law requires WA 1503 3RD AVE W - W00322 to report its energy use?
WA 1503 3RD AVE W - W00322 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:27456:2025). 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 data center buildings in Seattle
- Centurylink: Duwamish Main· 36,140 sq ft · EUI 105.0 kBtu/ft²
- UW TOWER DATA CENTER· 36,000 sq ft · score 97 (A)
- Centurylink: West Co· 31,332 sq ft · EUI 87.3 kBtu/ft²
- Centurylink: Sunset Co· 30,087 sq ft · EUI 115.7 kBtu/ft²
- Centurylink: Campus Co· 28,586 sq ft · EUI 129.2 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 WA 1503 3RD AVE W - W00322's energy grade?
WA 1503 3RD AVE W - W00322 did not report an ENERGY STAR score in its 2025 disclosure, but its site energy-use intensity was 111.8 kBtu/ft².
How much energy does WA 1503 3RD AVE W - W00322 use?
Its 2025 site energy-use intensity was 111.8 kBtu/ft² (313.1 kBtu/ft² source) across 36,771 sq ft, including 1,155,248 kWh of electricity.
What are WA 1503 3RD AVE W - W00322's carbon emissions?
WA 1503 3RD AVE W - W00322 reported 23 tCO₂e of greenhouse-gas emissions (0.7 kgCO₂e/ft²) for 2025.
Where is WA 1503 3RD AVE W - W00322?
WA 1503 3RD AVE W - W00322 is in Seattle, Washington 98119. Its coordinates are 47.63257, -122.36141 (latitude, longitude), as published in the Building Energy Benchmarking file.
How big is WA 1503 3RD AVE W - W00322 and when was it built?
WA 1503 3RD AVE W - W00322 has 36,771 sq ft of gross floor area, as reported in its 2025 disclosure. The disclosure lists 1956 as its year built. It is classed as data center.
Is WA 1503 3RD AVE W - W00322 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, “WA 1503 3RD AVE W - W00322, Seattle, Washington — 2025 benchmarking disclosure”, https://buildingcensus.com/buildings/seattle/wa-1503-3rd-ave-w-w00322-0e9165ef (data as of October 2, 2026).