At a glance
Puget Sound Plaza is a 552,176-square-foot office building at 1325 4TH AVE in Seattle, Washington, built in 1960. In its 2025 Seattle benchmarking disclosure it reported an ENERGY STAR score of 66 out of 100 (grade C), a site energy-use intensity of 71.7 kBtu/ft² and 1,022 tCO₂e of greenhouse-gas emissions. That score is higher than 21% of the 378 scored office buildings in Seattle.
Seattle Energy Benchmarking Ordinance (SMC 22.920) · reporting year 2025
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 66 (band C) |
| Site EUI | 71.7 kBtu/ft² |
| Source EUI | 138.0 kBtu/ft² |
| GHG emissions | 1,022 tCO₂e |
| GHG intensity | 3.4 kgCO₂e/ft² |
| Electricity | 2,896,518 kWh |
| Gross floor area | 552,176 sq ft |
| Source record | seattle:387:2025 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2025latest | 66 | -5 | 71.7 kBtu/ft² | 1,022 tCO₂e |
| 2024 | 71 | +9 | 68.8 kBtu/ft² | 1,010 tCO₂e |
| 2023 | 62 | +11 | 75.6 kBtu/ft² | 1,077 tCO₂e |
| 2022 | 51 | -20 | 90.7 kBtu/ft² | 1,389 tCO₂e |
| 2021 | 71 | +6 | 89.9 kBtu/ft² | 1,336 tCO₂e |
| 2020 | 65 | +10 | 91.1 kBtu/ft² | 1,202 tCO₂e |
| 2019 | 55 | +4 | 101.1 kBtu/ft² | 1,271 tCO₂e |
| 2018 | 51 | +14 | 105.8 kBtu/ft² | 1,341 tCO₂e |
| 2017 | 37 | -42 | 114.2 kBtu/ft² | 1,375 tCO₂e |
| 2016 | 79 | +11 | 90.7 kBtu/ft² | 1,117 tCO₂e |
| 2015 | 68 | 102.7 kBtu/ft² | 1,114 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
- 1325 4TH AVE
- City
- Seattle
- State
- Washington
- ZIP
- 98101
- Coordinates
- 47.60869, -122.33588
Within ~1 km
Nearby benchmarked buildings
- Columbia Centerscore 90
Office · 1,952,220 sq ft
- Seattle Convention Centerscore —
Convention Center · 1,842,925 sq ft
- Two Union Squarescore 96
Office · 1,605,578 sq ft
Office · 1,599,394 sq ft
- Day 1 Tower And Spheres (Amazon)score 93
Office · 1,599,230 sq ft
- Russell Investments Centerscore 92
Office · 1,592,914 sq ft
See also: most efficient in Seattle · biggest emitters
How does Puget Sound Plaza compare with other office buildings in Seattle?
The latest disclosures cover 497 office buildings in Seattle, out of 3,871 buildings citywide. Puget Sound Plaza's ENERGY STAR score of 66 compares with an average of 76 across the 378 that report a score; it scores higher than 21% of them and lower than 77%. Its site EUI of 71.7 kBtu/ft² is about 60% above the average of 44.8 kBtu/ft² — it uses more energy per square foot than the typical building in that group. Its emissions intensity of 3.4 kgCO₂e/ft² is about 380% above the group average of 0.7 kgCO₂e/ft².
At 552,176 sq ft, it is about 181% above the average floor area of 196,452 sq ft for those buildings. It was built in 1960, 5 years earlier than the group's average year built (1965). Across all 24 jurisdictions BuildingCensus covers, the 15,264 office buildings average an ENERGY STAR score of 73 and a site EUI of 59.3 kBtu/ft².
How has Puget Sound Plaza's energy performance changed over time?
BuildingCensus holds 11 Seattle disclosures for Puget Sound Plaza, covering report years 2015–2025. Its ENERGY STAR score went from 68 in 2015 to 66 in 2025 (-2 points); its best year on file was 2016, at 79. Site EUI moved from 102.7 kBtu/ft² (2015) to 71.7 kBtu/ft² (2025), a 30% decrease. Reported emissions went from 1,114 tCO₂e to 1,022 tCO₂e over the same span (down 8%).
What does an ENERGY STAR score of 66 mean?
ENERGY STAR scores run from 1 to 100 and are computed by the EPA's Portfolio Manager as a percentile against similar buildings nationwide, adjusted for climate, size and use: a score of 66 means the building performs better than about 66% of its national peers. BuildingCensus bands the score into report-card grades; 66 falls in band C — below median (55–69). It sits 9 points below 75, the threshold for ENERGY STAR certification. In Seattle, 69% of scored buildings are at 75 or above.
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. Puget Sound Plaza's 71.7 kBtu/ft² across 552,176 sq ft works out to about 39.6 billion Btu (11,603 MWh-equivalent) in 2025. Its source EUI of 138.0 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 2,896,518 kWh of electricity for the year.
Which law requires Puget Sound Plaza to report its energy use?
Puget Sound Plaza 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:387:2025). 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 office buildings in Seattle
- Fourth & Blanchard Building· 543,876 sq ft · score 78 (B)
- One Convention Place· 538,933 sq ft · score 84 (B)
- 400 Fairview Office Bldg· 536,697 sq ft · score 92 (A)
- City Place V (Arizona)· 526,423 sq ft · score 96 (A)
- Westlake Tower· 516,342 sq ft · score 88 (A)
- Dexter Station Office· 513,816 sq ft · score 83 (B)
- Office buildings in Seattle· 497 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 Puget Sound Plaza's energy grade?
Puget Sound Plaza scores 66 out of 100 on ENERGY STAR — band C, below median (55–69) — in its 2025 Seattle disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does Puget Sound Plaza use?
Its 2025 site energy-use intensity was 71.7 kBtu/ft² (138.0 kBtu/ft² source) across 552,176 sq ft, including 2,896,518 kWh of electricity.
What are Puget Sound Plaza's carbon emissions?
Puget Sound Plaza reported 1,022 tCO₂e of greenhouse-gas emissions (3.4 kgCO₂e/ft²) for 2025.
Where is Puget Sound Plaza?
Puget Sound Plaza is at 1325 4TH AVE, in Seattle, Washington 98101. Its coordinates are 47.60869, -122.33588 (latitude, longitude), as published in the Building Energy Benchmarking file.
How big is Puget Sound Plaza and when was it built?
Puget Sound Plaza has 552,176 sq ft of gross floor area, as reported in its 2025 disclosure. The disclosure lists 1960 as its year built. It is classed as office.
Is Puget Sound Plaza 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, “Puget Sound Plaza, Seattle, Washington — 2025 benchmarking disclosure”, https://buildingcensus.com/buildings/seattle/puget-sound-plaza-cc3d75bb (data as of October 2, 2026).