Assembly118 Apts
Multifamily Housing in Seattle, WA · 4200 S OTHELLO ST · 98118
Seattle Energy Benchmarking Ordinance (SMC 22.920) · reporting year 2025
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 72 (band B) |
| Site EUI | 56.4 kBtu/ft² |
| Source EUI | 107.2 kBtu/ft² |
| GHG emissions | 208 tCO₂e |
| GHG intensity | 1.7 kgCO₂e/ft² |
| Electricity | 989,625 kWh |
| Natural gas | 35,733 therms |
| Gross floor area | 381,161 sq ft |
| Source record | seattle:50414:2025 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2025latest | 72 | +40 | 56.4 kBtu/ft² | 208 tCO₂e |
| 2024 | 32 | -25 | 88.6 kBtu/ft² | 422 tCO₂e |
| 2023 | 57 | -14 | 70.5 kBtu/ft² | 305 tCO₂e |
| 2022 | 71 | -2 | 59.7 kBtu/ft² | 228 tCO₂e |
| 2021 | 73 | +3 | 58.6 kBtu/ft² | 226 tCO₂e |
| 2020 | 70 | -6 | 59.5 kBtu/ft² | 239 tCO₂e |
| 2019 | 76 | 58.3 kBtu/ft² | 239 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
- 4200 S OTHELLO ST
- City
- Seattle
- State
- Washington
- ZIP
- 98118
- Coordinates
- 47.53771, -122.28039
Within ~1 km
Nearby benchmarked buildings
- Station At Othello Parkscore 93
Multifamily Housing · 387,971 sq ft
- Orenda (rn185)score 96
Multifamily Housing · 193,783 sq ft
- Willow Crossing Apartmentsscore 97
Multifamily Housing · 163,673 sq ft
- BRIGHTON APTSscore —
Multifamily LR (1-4) · 160,561 sq ft
- Mercy Othello Plazascore 92
Multifamily Housing · 125,565 sq ft
Senior Living Community · 121,635 sq ft
See also: most efficient in Seattle · biggest emitters
Frequently asked questions
What is Assembly118 Apts's energy grade?
Assembly118 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 Assembly118 Apts use?
Its 2025 site energy-use intensity was 56.4 kBtu/ft² (107.2 kBtu/ft² source) across 381,161 sq ft, including 989,625 kWh of electricity and 35,733 therms of natural gas.
What are Assembly118 Apts's carbon emissions?
Assembly118 Apts reported 208 tCO₂e of greenhouse-gas emissions (1.7 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:50414:2025.