Costco 4th Ave S
Supermarket/Grocery Store in Seattle, WA · 4401 4TH AVE S · 98134
Seattle Energy Benchmarking Ordinance (SMC 22.920) · reporting year 2025
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 65 (band C) |
| Site EUI | 158.2 kBtu/ft² |
| Source EUI | 323.9 kBtu/ft² |
| GHG emissions | 633 tCO₂e |
| GHG intensity | 4.0 kgCO₂e/ft² |
| Electricity | 4,186,820 kWh |
| Natural gas | 107,714 therms |
| Gross floor area | 158,415 sq ft |
| Source record | seattle:464:2025 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2025latest | 65 | +2 | 158.2 kBtu/ft² | 633 tCO₂e |
| 2024 | 63 | -29 | 153.7 kBtu/ft² | 632 tCO₂e |
| 2023 | 92 | +3 | 93.5 kBtu/ft² | 134 tCO₂e |
| 2022 | 89 | +8 | 136.8 kBtu/ft² | 602 tCO₂e |
| 2021 | 81 | ±0 | 142.7 kBtu/ft² | 610 tCO₂e |
| 2020 | 81 | +3 | 141.9 kBtu/ft² | 535 tCO₂e |
| 2019 | 78 | -10 | 146.9 kBtu/ft² | 532 tCO₂e |
| 2018 | 88 | +86 | 135.1 kBtu/ft² | 460 tCO₂e |
| 2017 | 2 | -23 | 153.2 kBtu/ft² | 575 tCO₂e |
| 2016 | 25 | +2 | 141.4 kBtu/ft² | 435 tCO₂e |
| 2015 | 23 | 147.5 kBtu/ft² | 454 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.
Own or manage this building? Claim it to correct the record and get compliance alerts.
Location
- Address
- 4401 4TH AVE S
- City
- Seattle
- State
- Washington
- ZIP
- 98134
- Coordinates
- 47.56530, -122.33076
Within ~1 km
Nearby benchmarked buildings
- Portside Distribution Centerscore 96
Distribution Center · 411,584 sq ft
- K2 And Iron Mountain (Seattle 4)score 98
Non-Refrigerated Warehouse · 323,916 sq ft
- Terreno 1st Ave Southscore 75
Non-Refrigerated Warehouse · 234,144 sq ft
- Sodo Urban Worksscore —
Mixed Use Property · 188,681 sq ft
Other - Utility · 179,161 sq ft
Refrigerated Warehouse · 174,227 sq ft
See also: most efficient in Seattle · biggest emitters
Frequently asked questions
What is Costco 4th Ave S's energy grade?
Costco 4th Ave S scores 65 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 Costco 4th Ave S use?
Its 2025 site energy-use intensity was 158.2 kBtu/ft² (323.9 kBtu/ft² source) across 158,415 sq ft, including 4,186,820 kWh of electricity and 107,714 therms of natural gas.
What are Costco 4th Ave S's carbon emissions?
Costco 4th Ave S reported 633 tCO₂e of greenhouse-gas emissions (4.0 kgCO₂e/ft²) for 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.
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Dataset updated . Source: Building Energy Benchmarking disclosure, record seattle:464:2025.