At a glance
Wsecu Plaza- Seattle is a 97,512-square-foot other building at 1121 NE 45TH ST in Seattle, Washington, built in 2018. In its 2025 Seattle benchmarking disclosure it reported a site energy-use intensity of 24.2 kBtu/ft² and 8 tCO₂e of greenhouse-gas emissions.
Seattle Energy Benchmarking Ordinance (SMC 22.920) · reporting year 2025
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | — |
| Site EUI | 24.2 kBtu/ft² |
| Source EUI | 67.8 kBtu/ft² |
| GHG emissions | 8 tCO₂e |
| GHG intensity | 0.1 kgCO₂e/ft² |
| Electricity | 428,376 kWh |
| Gross floor area | 97,512 sq ft |
| Source record | seattle:50373:2025 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2025latest | — | 24.2 kBtu/ft² | 8 tCO₂e | |
| 2024 | — | 23.2 kBtu/ft² | 8 tCO₂e | |
| 2023 | — | 22.2 kBtu/ft² | 8 tCO₂e | |
| 2022 | — | 22.0 kBtu/ft² | 8 tCO₂e | |
| 2021 | — | 21.7 kBtu/ft² | 8 tCO₂e | |
| 2020 | — | 18.9 kBtu/ft² | 7 tCO₂e | |
| 2019 | 100 | 12.1 kBtu/ft² | 5 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
- 1121 NE 45TH ST
- City
- Seattle
- State
- Washington
- ZIP
- 98105
- Coordinates
- 47.66107, -122.31565
Within ~1 km
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See also: most efficient in Seattle · biggest emitters
How does Wsecu Plaza- Seattle compare with other other buildings in Seattle?
The latest disclosures cover 45 other buildings in Seattle, out of 3,871 buildings citywide. Its site EUI of 24.2 kBtu/ft² is about 59% below the average of 59.4 kBtu/ft² — it uses less energy per square foot than the typical building in that group. Its emissions intensity of 0.1 kgCO₂e/ft² is about 87% below the group average of 1.1 kgCO₂e/ft².
At 97,512 sq ft, it is about 75% above the average floor area of 55,708 sq ft for those buildings. It was built in 2018, 66 years later than the group's average year built (1952). Across all 24 jurisdictions BuildingCensus covers, the 1,327 other buildings average an ENERGY STAR score of 60 and a site EUI of 63.3 kBtu/ft².
How has Wsecu Plaza- Seattle's energy performance changed over time?
BuildingCensus holds 7 Seattle disclosures for Wsecu Plaza- Seattle, covering report years 2019–2025. Site EUI moved from 12.1 kBtu/ft² (2019) to 24.2 kBtu/ft² (2025), an 100% increase. Reported emissions went from 5 tCO₂e to 8 tCO₂e over the same span (up 75%).
What does a site EUI of 24.2 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. Wsecu Plaza- Seattle's 24.2 kBtu/ft² across 97,512 sq ft works out to about 2.4 billion Btu (692 MWh-equivalent) in 2025. Its source EUI of 67.8 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 428,376 kWh of electricity for the year.
Which law requires Wsecu Plaza- Seattle to report its energy use?
Wsecu Plaza- Seattle 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:50373:2025). 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 other buildings in Seattle
- Nordic Cold Storage Company· 83,400 sq ft · EUI 1.2 kBtu/ft²
- Kcts 9· 66,240 sq ft · EUI 43.8 kBtu/ft²
- Bagley Wright Theater (Rep) - Seattle Center· 65,127 sq ft · EUI 75.5 kBtu/ft²
- MERCER ARENA - SEATTLE CENTER· 60,696 sq ft · EUI 2.6 kBtu/ft²
- 424 S CLOVERDALE ST· 50,417 sq ft
- Bedrosians Tile & Stone· 50,200 sq ft · EUI 32.9 kBtu/ft²
- Other buildings in Seattle· 45 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 Wsecu Plaza- Seattle's energy grade?
Wsecu Plaza- Seattle did not report an ENERGY STAR score in its 2025 disclosure, but its site energy-use intensity was 24.2 kBtu/ft².
How much energy does Wsecu Plaza- Seattle use?
Its 2025 site energy-use intensity was 24.2 kBtu/ft² (67.8 kBtu/ft² source) across 97,512 sq ft, including 428,376 kWh of electricity.
What are Wsecu Plaza- Seattle's carbon emissions?
Wsecu Plaza- Seattle reported 8 tCO₂e of greenhouse-gas emissions (0.1 kgCO₂e/ft²) for 2025.
Where is Wsecu Plaza- Seattle?
Wsecu Plaza- Seattle is at 1121 NE 45TH ST, in Seattle, Washington 98105. Its coordinates are 47.66107, -122.31565 (latitude, longitude), as published in the Building Energy Benchmarking file.
How big is Wsecu Plaza- Seattle and when was it built?
Wsecu Plaza- Seattle has 97,512 sq ft of gross floor area, as reported in its 2025 disclosure. The disclosure lists 2018 as its year built. It is classed as other.
Is Wsecu Plaza- Seattle 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, “Wsecu Plaza- Seattle, Seattle, Washington — 2025 benchmarking disclosure”, https://buildingcensus.com/buildings/seattle/wsecu-plaza-seattle-efe1e8d6 (data as of October 2, 2026).