Seattle Energy Benchmarking Ordinance (SMC 22.920) · reporting year 2025
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 47 (band D) |
| Site EUI | 58.5 kBtu/ft² |
| Source EUI | 155.3 kBtu/ft² |
| GHG emissions | 32 tCO₂e |
| GHG intensity | 0.6 kgCO₂e/ft² |
| Electricity | 896,111 kWh |
| Natural gas | 2,761 therms |
| Gross floor area | 91,706 sq ft |
| Source record | seattle:650:2025 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2025latest | 47 | +5 | 58.5 kBtu/ft² | 32 tCO₂e |
| 2024 | 42 | +22 | 60.5 kBtu/ft² | 35 tCO₂e |
| 2023 | 20 | 79.5 kBtu/ft² | 40 tCO₂e | |
| 2022 | — | — | 23 tCO₂e | |
| 2021 | 38 | 66.4 kBtu/ft² | 39 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
- 1100 NE 45TH ST
- City
- Seattle
- State
- Washington
- ZIP
- 98105
- Coordinates
- 47.66158, -122.31625
Within ~1 km
Nearby benchmarked buildings
College/University · 15,216,474 sq ft
- The Standard At Seattlescore 100
Multifamily Housing · 612,844 sq ft
- Uw Tower Bldg Complexscore —
College/University · 417,035 sq ft
Multifamily Housing · 411,067 sq ft
- Chapter Building 1score 100
Office · 328,919 sq ft
- Terry & Maple Hall Uwscore —
Residence Hall/Dormitory · 325,000 sq ft
See also: most efficient in Seattle · biggest emitters
Frequently asked questions
What is 45th Street Plaza's energy grade?
45th Street Plaza scores 47 out of 100 on ENERGY STAR — band D (Lowest band (1–54)) — in its 2025 Seattle disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does 45th Street Plaza use?
Its 2025 site energy-use intensity was 58.5 kBtu/ft² (155.3 kBtu/ft² source) across 91,706 sq ft, including 896,111 kWh of electricity and 2,761 therms of natural gas.
What are 45th Street Plaza's carbon emissions?
45th Street Plaza reported 32 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:650:2025.