Seattle Energy Benchmarking Ordinance (SMC 22.920) · reporting year 2025
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 79 (band B) |
| Site EUI | 93.4 kBtu/ft² |
| Source EUI | 168.9 kBtu/ft² |
| GHG emissions | 109 tCO₂e |
| GHG intensity | 3.0 kgCO₂e/ft² |
| Electricity | 427,227 kWh |
| Natural gas | 19,068 therms |
| Gross floor area | 43,506 sq ft |
| Source record | seattle:20087:2025 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2025latest | 79 | +21 | 93.4 kBtu/ft² | 109 tCO₂e |
| 2024 | 58 | +10 | 104.8 kBtu/ft² | 110 tCO₂e |
| 2023 | 48 | ±0 | 119.5 kBtu/ft² | 124 tCO₂e |
| 2022 | 48 | -8 | 124.2 kBtu/ft² | 137 tCO₂e |
| 2021 | 56 | +1 | 108.8 kBtu/ft² | 114 tCO₂e |
| 2020 | 55 | +1 | 104.1 kBtu/ft² | 104 tCO₂e |
| 2019 | 54 | +2 | 99.6 kBtu/ft² | 90 tCO₂e |
| 2018 | 52 | ±0 | 101.7 kBtu/ft² | 91 tCO₂e |
| 2017 | 52 | +1 | 112.1 kBtu/ft² | 108 tCO₂e |
| 2016 | 51 | -9 | 106.2 kBtu/ft² | 97 tCO₂e |
| 2015 | 60 | 92.3 kBtu/ft² | 78 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
- 800 STEWART ST
- City
- Seattle
- State
- Washington
- ZIP
- 98101
- Coordinates
- 47.61524, -122.33519
Within ~1 km
Nearby benchmarked buildings
- 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
- Onni South Lake Unionscore 77
Multifamily Housing · 1,546,084 sq ft
See also: most efficient in Seattle · biggest emitters
Frequently asked questions
What is 800 Stewart's energy grade?
800 Stewart scores 79 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 800 Stewart use?
Its 2025 site energy-use intensity was 93.4 kBtu/ft² (168.9 kBtu/ft² source) across 43,506 sq ft, including 427,227 kWh of electricity and 19,068 therms of natural gas.
What are 800 Stewart's carbon emissions?
800 Stewart reported 109 tCO₂e of greenhouse-gas emissions (3.0 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:20087:2025.