Seattle Energy Benchmarking Ordinance (SMC 22.920) · reporting year 2025
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | — |
| Site EUI | 91.8 kBtu/ft² |
| Source EUI | 122.6 kBtu/ft² |
| GHG emissions | 126 tCO₂e |
| GHG intensity | 5.2 kgCO₂e/ft² |
| Electricity | 87,182 kWh |
| Natural gas | 11,485 therms |
| Gross floor area | 28,760 sq ft |
| Source record | seattle:25658:2025 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2025latest | — | 91.8 kBtu/ft² | 126 tCO₂e | |
| 2024 | — | 76.8 kBtu/ft² | 98 tCO₂e | |
| 2023 | — | 85.0 kBtu/ft² | 117 tCO₂e | |
| 2022 | — | 84.5 kBtu/ft² | 114 tCO₂e | |
| 2021 | — | 45.6 kBtu/ft² | 66 tCO₂e | |
| 2020 | — | 48.1 kBtu/ft² | 65 tCO₂e | |
| 2019 | — | 112.1 kBtu/ft² | 130 tCO₂e | |
| 2018 | — | 115.5 kBtu/ft² | 131 tCO₂e | |
| 2017 | — | 105.7 kBtu/ft² | 119 tCO₂e | |
| 2016 | — | 107.5 kBtu/ft² | 126 tCO₂e | |
| 2015 | — | 110.3 kBtu/ft² | 126 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
- 311 OCCIDENTAL AVE S
- City
- Seattle
- State
- Washington
- ZIP
- 98104
- Coordinates
- 47.59954, -122.33327
Within ~1 km
Nearby benchmarked buildings
- Columbia Centerscore 90
Office · 1,952,220 sq ft
- Centurylink Field-Stadiumscore —
Stadium (Open) · 1,913,640 sq ft
- Russell Investments Centerscore 92
Office · 1,592,914 sq ft
Office · 1,413,575 sq ft
- Seattle Municipal Towerscore 86
Office · 1,354,987 sq ft
- 999 Third Avescore 88
Office · 1,323,055 sq ft
See also: most efficient in Seattle · biggest emitters
Frequently asked questions
What is Waltham Block/Occidental Building's energy grade?
Waltham Block/Occidental Building did not report an ENERGY STAR score in its 2025 disclosure, but its site energy-use intensity was 91.8 kBtu/ft².
How much energy does Waltham Block/Occidental Building use?
Its 2025 site energy-use intensity was 91.8 kBtu/ft² (122.6 kBtu/ft² source) across 28,760 sq ft, including 87,182 kWh of electricity and 11,485 therms of natural gas.
What are Waltham Block/Occidental Building's carbon emissions?
Waltham Block/Occidental Building reported 126 tCO₂e of greenhouse-gas emissions (5.2 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:25658:2025.