550 Broadway Apartments (Zig)
Multifamily Housing in Seattle, WA · 550 BROADWAY · 98122
Seattle Energy Benchmarking Ordinance (SMC 22.920) · reporting year 2025
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 96 (band A) |
| Site EUI | 38.7 kBtu/ft² |
| Source EUI | 86.0 kBtu/ft² |
| GHG emissions | 92 tCO₂e |
| GHG intensity | 0.8 kgCO₂e/ft² |
| Electricity | 848,708 kWh |
| Natural gas | 14,350 therms |
| Gross floor area | 138,434 sq ft |
| Source record | seattle:50310:2025 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2025latest | 96 | -2 | 38.7 kBtu/ft² | 92 tCO₂e |
| 2024 | 98 | -1 | 37.9 kBtu/ft² | 96 tCO₂e |
| 2023 | 99 | ±0 | 35.1 kBtu/ft² | 85 tCO₂e |
| 2022 | 99 | ±0 | 36.9 kBtu/ft² | 98 tCO₂e |
| 2021 | 99 | +63 | 28.5 kBtu/ft² | 71 tCO₂e |
| 2020 | 36 | -44 | 59.6 kBtu/ft² | 91 tCO₂e |
| 2019 | 80 | -20 | 46.9 kBtu/ft² | 92 tCO₂e |
| 2018 | 100 | 30.3 kBtu/ft² | 93 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.
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Location
- Address
- 550 BROADWAY
- City
- Seattle
- State
- Washington
- ZIP
- 98122
- Coordinates
- 47.60672, -122.32035
Within ~1 km
Nearby benchmarked buildings
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- 1101 Madison Towerscore 70
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- Skyline At First Hillscore 65
Multifamily Housing · 629,615 sq ft
See also: most efficient in Seattle · biggest emitters
Frequently asked questions
What is 550 Broadway Apartments (Zig)'s energy grade?
550 Broadway Apartments (Zig) scores 96 out of 100 on ENERGY STAR — band A (High performer (85–100)) — in its 2025 Seattle disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does 550 Broadway Apartments (Zig) use?
Its 2025 site energy-use intensity was 38.7 kBtu/ft² (86.0 kBtu/ft² source) across 138,434 sq ft, including 848,708 kWh of electricity and 14,350 therms of natural gas.
What are 550 Broadway Apartments (Zig)'s carbon emissions?
550 Broadway Apartments (Zig) reported 92 tCO₂e of greenhouse-gas emissions (0.8 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:50310:2025.