Helios Apts
Multifamily Housing in Seattle, WA · 1600 2ND AVE · 98101
Seattle Energy Benchmarking Ordinance (SMC 22.920) · reporting year 2025
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 72 (band B) |
| Site EUI | 46.9 kBtu/ft² |
| Source EUI | 94.2 kBtu/ft² |
| GHG emissions | 549 tCO₂e |
| GHG intensity | 1.3 kgCO₂e/ft² |
| Electricity | 3,252,672 kWh |
| Natural gas | 91,662 therms |
| Gross floor area | 559,958 sq ft |
| Source record | seattle:50099:2025 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2025latest | 72 | -7 | 46.9 kBtu/ft² | 549 tCO₂e |
| 2024 | 79 | -6 | 41.9 kBtu/ft² | 424 tCO₂e |
| 2023 | 85 | -2 | 39.0 kBtu/ft² | 355 tCO₂e |
| 2022 | 87 | ±0 | 39.8 kBtu/ft² | 382 tCO₂e |
| 2021 | 87 | +5 | 37.8 kBtu/ft² | 332 tCO₂e |
| 2020 | 82 | -2 | 42.3 kBtu/ft² | 375 tCO₂e |
| 2019 | 84 | 41.9 kBtu/ft² | 370 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
- 1600 2ND AVE
- City
- Seattle
- State
- Washington
- ZIP
- 98101
- Coordinates
- 47.61067, -122.33957
Within ~1 km
Nearby benchmarked buildings
- Seattle Convention Centerscore —
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- Two Union Squarescore 96
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- Day 1 Tower And Spheres (Amazon)score 93
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- Russell Investments Centerscore 92
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- Us Bank Centerscore 87
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See also: most efficient in Seattle · biggest emitters
Frequently asked questions
What is Helios Apts's energy grade?
Helios Apts scores 72 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 Helios Apts use?
Its 2025 site energy-use intensity was 46.9 kBtu/ft² (94.2 kBtu/ft² source) across 559,958 sq ft, including 3,252,672 kWh of electricity and 91,662 therms of natural gas.
What are Helios Apts's carbon emissions?
Helios Apts reported 549 tCO₂e of greenhouse-gas emissions (1.3 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:50099:2025.