Seattle Energy Benchmarking Ordinance (SMC 22.920) · reporting year 2025
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 74 (band B) |
| Site EUI | 41.9 kBtu/ft² |
| Source EUI | 103.9 kBtu/ft² |
| GHG emissions | 641 tCO₂e |
| GHG intensity | 0.6 kgCO₂e/ft² |
| Electricity | 10,765,220 kWh |
| Natural gas | 81,843 therms |
| Gross floor area | 1,527,817 sq ft |
| Source record | seattle:50780:2025 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2025latest | 74 | +1 | 41.9 kBtu/ft² | 641 tCO₂e |
| 2024 | 73 | 35.7 kBtu/ft² | 536 tCO₂e | |
| 2023 | — | 37.8 kBtu/ft² | 585 tCO₂e | |
| 2022 | — | 33.5 kBtu/ft² | 586 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
- 401 UNION ST
- City
- Seattle
- State
- Washington
- ZIP
- 98101
- Coordinates
- 47.60916, -122.33511
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
Frequently asked questions
What is Rainier Square Tower (Mf + Commercial)'s energy grade?
Rainier Square Tower (Mf + Commercial) scores 74 out of 100 on ENERGY STAR — band B (Above median (70–84)) — in its 2025 Seattle disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does Rainier Square Tower (Mf + Commercial) use?
Its 2025 site energy-use intensity was 41.9 kBtu/ft² (103.9 kBtu/ft² source) across 1,527,817 sq ft, including 10,765,220 kWh of electricity and 81,843 therms of natural gas.
What are Rainier Square Tower (Mf + Commercial)'s carbon emissions?
Rainier Square Tower (Mf + Commercial) reported 641 tCO₂e of greenhouse-gas emissions (0.6 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:50780:2025.