Pnb Phelps Center - Seattle Center
Performing Arts in Seattle, WA · 301 MERCER ST · 98109
At a glance
Pnb Phelps Center - Seattle Center is a 49,680-square-foot performing arts building at 301 MERCER ST in Seattle, Washington, built in 1966. In its 2025 Seattle benchmarking disclosure it reported a site energy-use intensity of 46.0 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 | 46.0 kBtu/ft² |
| Source EUI | 82.8 kBtu/ft² |
| GHG emissions | 8 tCO₂e |
| GHG intensity | 0.2 kgCO₂e/ft² |
| Electricity | 314,659 kWh |
| Gross floor area | 49,680 sq ft |
| Source record | seattle:21464:2025 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2025latest | — | 46.0 kBtu/ft² | 8 tCO₂e | |
| 2024 | — | 23.6 kBtu/ft² | 8 tCO₂e | |
| 2023 | — | 23.0 kBtu/ft² | 10 tCO₂e | |
| 2022 | — | 23.7 kBtu/ft² | 10 tCO₂e | |
| 2021 | — | 23.1 kBtu/ft² | 10 tCO₂e | |
| 2020 | — | 22.3 kBtu/ft² | 16 tCO₂e | |
| 2019 | — | 39.7 kBtu/ft² | 56 tCO₂e | |
| 2018 | — | 77.3 kBtu/ft² | 206 tCO₂e | |
| 2017 | — | 52.0 kBtu/ft² | 96 tCO₂e | |
| 2016 | — | 57.3 kBtu/ft² | 123 tCO₂e | |
| 2015 | — | 66.2 kBtu/ft² | 153 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
- 301 MERCER ST
- City
- Seattle
- State
- Washington
- ZIP
- 98109
- Coordinates
- 47.62395, -122.35143
Within ~1 km
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- Armory - Seattle Centerscore —
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See also: most efficient in Seattle · biggest emitters
How does Pnb Phelps Center - Seattle Center compare with other performing arts buildings in Seattle?
The latest disclosures cover 8 performing arts buildings in Seattle, out of 3,871 buildings citywide. Its site EUI of 46.0 kBtu/ft² is about 32% below the average of 67.5 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 92% below the group average of 2.1 kgCO₂e/ft².
At 49,680 sq ft, it is about 45% below the average floor area of 89,779 sq ft for those buildings. Its 1966 construction date is close to the group's average year built (1967).
How has Pnb Phelps Center - Seattle Center's energy performance changed over time?
BuildingCensus holds 11 Seattle disclosures for Pnb Phelps Center - Seattle Center, covering report years 2015–2025. Site EUI moved from 66.2 kBtu/ft² (2015) to 46.0 kBtu/ft² (2025), a 31% decrease. Reported emissions went from 153 tCO₂e to 8 tCO₂e over the same span (down 95%).
What does a site EUI of 46.0 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. Pnb Phelps Center - Seattle Center's 46.0 kBtu/ft² across 49,680 sq ft works out to about 2.3 billion Btu (670 MWh-equivalent) in 2025. Its source EUI of 82.8 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 314,659 kWh of electricity for the year.
Which law requires Pnb Phelps Center - Seattle Center to report its energy use?
Pnb Phelps Center - Seattle Center 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:21464:2025). 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 performing arts buildings in Seattle
- Seattle Children's Theater - Seattle Center· 40,600 sq ft · EUI 96.8 kBtu/ft²
- On The Boards· 34,976 sq ft · EUI 22.0 kBtu/ft²
- Langston Hughes Cultural Arts Center· 30,992 sq ft · EUI 76.0 kBtu/ft²
- TEATRO ZINZANNI-demo'd· 23,098 sq ft · EUI 132.4 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 Pnb Phelps Center - Seattle Center's energy grade?
Pnb Phelps Center - Seattle Center did not report an ENERGY STAR score in its 2025 disclosure, but its site energy-use intensity was 46.0 kBtu/ft².
How much energy does Pnb Phelps Center - Seattle Center use?
Its 2025 site energy-use intensity was 46.0 kBtu/ft² (82.8 kBtu/ft² source) across 49,680 sq ft, including 314,659 kWh of electricity.
What are Pnb Phelps Center - Seattle Center's carbon emissions?
Pnb Phelps Center - Seattle Center reported 8 tCO₂e of greenhouse-gas emissions (0.2 kgCO₂e/ft²) for 2025.
Where is Pnb Phelps Center - Seattle Center?
Pnb Phelps Center - Seattle Center is at 301 MERCER ST, in Seattle, Washington 98109. Its coordinates are 47.62395, -122.35143 (latitude, longitude), as published in the Building Energy Benchmarking file.
How big is Pnb Phelps Center - Seattle Center and when was it built?
Pnb Phelps Center - Seattle Center has 49,680 sq ft of gross floor area, as reported in its 2025 disclosure. The disclosure lists 1966 as its year built. It is classed as performing arts.
Is Pnb Phelps Center - Seattle Center 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, “Pnb Phelps Center - Seattle Center, Seattle, Washington — 2025 benchmarking disclosure”, https://buildingcensus.com/buildings/seattle/pnb-phelps-center-seattle-center-ce05c305 (data as of October 2, 2026).