Summit Flats
Multifamily Housing in Seattle, WA · 1103 SUMMIT AVE · 98101
Seattle Energy Benchmarking Ordinance (SMC 22.920) · reporting year 2025
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 99 (band A) |
| Site EUI | 38.8 kBtu/ft² |
| Source EUI | 81.0 kBtu/ft² |
| GHG emissions | 35 tCO₂e |
| GHG intensity | 1.0 kgCO₂e/ft² |
| Electricity | 246,469 kWh |
| Natural gas | 5,757 therms |
| Gross floor area | 36,551 sq ft |
| Source record | seattle:50726:2025 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2025latest | 99 | ±0 | 38.8 kBtu/ft² | 35 tCO₂e |
| 2024 | 99 | +1 | 40.9 kBtu/ft² | 39 tCO₂e |
| 2023 | 98 | -2 | 42.6 kBtu/ft² | 37 tCO₂e |
| 2022 | 100 | 27.5 kBtu/ft² | 6 tCO₂e | |
| 2021 | — | — | — |
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
- 1103 SUMMIT AVE
- City
- Seattle
- State
- Washington
- ZIP
- 98101
- Coordinates
- 47.61100, -122.32402
Within ~1 km
Nearby benchmarked buildings
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- Seattle Convention Centerscore —
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- Seattle Municipal Towerscore 86
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See also: most efficient in Seattle · biggest emitters
Frequently asked questions
What is Summit Flats's energy grade?
Summit Flats scores 99 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 Summit Flats use?
Its 2025 site energy-use intensity was 38.8 kBtu/ft² (81.0 kBtu/ft² source) across 36,551 sq ft, including 246,469 kWh of electricity and 5,757 therms of natural gas.
What are Summit Flats's carbon emissions?
Summit Flats reported 35 tCO₂e of greenhouse-gas emissions (1.0 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:50726:2025.