Gridiron Condos (Stadium Lofts)
Multifamily Housing in Seattle, WA · 589 OCCIDENTAL AVE S · 98104
At a glance
Gridiron Condos (Stadium Lofts) is a 185,614-square-foot multifamily housing building at 589 OCCIDENTAL AVE S in Seattle, Washington, built in 1903. In its 2025 Seattle benchmarking disclosure it reported a site energy-use intensity of 46.7 kBtu/ft² and 225 tCO₂e of greenhouse-gas emissions.
Seattle Energy Benchmarking Ordinance (SMC 22.920) · reporting year 2025
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | — |
| Site EUI | 46.7 kBtu/ft² |
| Source EUI | 79.2 kBtu/ft² |
| GHG emissions | 225 tCO₂e |
| GHG intensity | 1.7 kgCO₂e/ft² |
| Electricity | 680,200 kWh |
| Natural gas | 39,890 therms |
| Gross floor area | 185,614 sq ft |
| Source record | seattle:24459:2025 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2025latest | — | 46.7 kBtu/ft² | 225 tCO₂e | |
| 2024 | — | 27.7 kBtu/ft² | 106 tCO₂e | |
| 2023 | — | 25.7 kBtu/ft² | 90 tCO₂e | |
| 2022 | — | — | 11 tCO₂e | |
| 2021 | — | — | 11 tCO₂e | |
| 2020 | — | 25.4 kBtu/ft² | 94 tCO₂e | |
| 2019 | 100 | ±0 | 53.1 kBtu/ft² | 318 tCO₂e |
| 2018 | 100 | 4.1 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
- 589 OCCIDENTAL AVE S
- City
- Seattle
- State
- Washington
- ZIP
- 98104
- Coordinates
- 47.59602, -122.33359
Within ~1 km
Nearby benchmarked buildings
- Centurylink Field-Stadiumscore —
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- T-Mobile Park (Safeco Field)score —
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Parking · 872,409 sq ft
- Embassy Suites- Downtown Seattlescore 91
Mixed Use Property · 680,770 sq ft
Multifamily Housing · 619,416 sq ft
- King County Courthousescore 56
Courthouse · 540,360 sq ft
See also: most efficient in Seattle · biggest emitters
How does Gridiron Condos (Stadium Lofts) compare with other multifamily housing buildings in Seattle?
The latest disclosures cover 1,971 multifamily housing buildings in Seattle, out of 3,871 buildings citywide. Its site EUI of 46.7 kBtu/ft² is about 34% above the average of 34.9 kBtu/ft² — it uses more energy per square foot than the typical building in that group. Its emissions intensity of 1.7 kgCO₂e/ft² is about 139% above the group average of 0.7 kgCO₂e/ft².
At 185,614 sq ft, it is about twice the average floor area of 86,468 sq ft for those buildings. It was built in 1903, 80 years earlier than the group's average year built (1983). Across all 24 jurisdictions BuildingCensus covers, the 59,945 multifamily housing buildings average an ENERGY STAR score of 70 and a site EUI of 59.0 kBtu/ft².
How has Gridiron Condos (Stadium Lofts)'s energy performance changed over time?
BuildingCensus holds 8 Seattle disclosures for Gridiron Condos (Stadium Lofts), covering report years 2018–2025. Its ENERGY STAR score was 100 in both 2018 and 2019. Site EUI moved from 4.1 kBtu/ft² (2018) to 46.7 kBtu/ft² (2025), an 1039% increase. Reported emissions went from 5 tCO₂e to 225 tCO₂e over the same span (up 4489%).
What does a site EUI of 46.7 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. Gridiron Condos (Stadium Lofts)'s 46.7 kBtu/ft² across 185,614 sq ft works out to about 8.7 billion Btu (2,540 MWh-equivalent) in 2025. Its source EUI of 79.2 kBtu/ft² also counts the energy lost generating and delivering that power, which is why it is higher. The disclosure also reports 680,200 kWh of electricity and 39,890 therms of natural gas for the year.
Which law requires Gridiron Condos (Stadium Lofts) to report its energy use?
Gridiron Condos (Stadium Lofts) 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:24459:2025). 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 multifamily housing buildings in Seattle
- Market Place North Phase I Condominium· 185,506 sq ft · score 18 (D)
- Cascade Terrace· 185,403 sq ft · score 90 (A)
- U Place Apartments· 185,296 sq ft
- Elan Uptown Flats - West· 185,048 sq ft · score 100 (A)
- The Broadway On Broadway Bldg· 184,980 sq ft · score 98 (A)
- East Union Apartments· 184,974 sq ft · score 21 (D)
- Multifamily Housing buildings in Seattle· 1,971 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 Gridiron Condos (Stadium Lofts)'s energy grade?
Gridiron Condos (Stadium Lofts) did not report an ENERGY STAR score in its 2025 disclosure, but its site energy-use intensity was 46.7 kBtu/ft².
How much energy does Gridiron Condos (Stadium Lofts) use?
Its 2025 site energy-use intensity was 46.7 kBtu/ft² (79.2 kBtu/ft² source) across 185,614 sq ft, including 680,200 kWh of electricity and 39,890 therms of natural gas.
What are Gridiron Condos (Stadium Lofts)'s carbon emissions?
Gridiron Condos (Stadium Lofts) reported 225 tCO₂e of greenhouse-gas emissions (1.7 kgCO₂e/ft²) for 2025.
Where is Gridiron Condos (Stadium Lofts)?
Gridiron Condos (Stadium Lofts) is at 589 OCCIDENTAL AVE S, in Seattle, Washington 98104. Its coordinates are 47.59602, -122.33359 (latitude, longitude), as published in the Building Energy Benchmarking file.
How big is Gridiron Condos (Stadium Lofts) and when was it built?
Gridiron Condos (Stadium Lofts) has 185,614 sq ft of gross floor area, as reported in its 2025 disclosure. The disclosure lists 1903 as its year built. It is classed as multifamily housing.
Is Gridiron Condos (Stadium Lofts) 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, “Gridiron Condos (Stadium Lofts), Seattle, Washington — 2025 benchmarking disclosure”, https://buildingcensus.com/buildings/seattle/gridiron-condos-stadium-lofts-befd8090 (data as of October 2, 2026).