Portal Apartments
Multifamily Housing in Seattle, WA · 743 N 35TH ST · 98103
Seattle Energy Benchmarking Ordinance (SMC 22.920) · reporting year 2025
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 94 (band A) |
| Site EUI | 36.6 kBtu/ft² |
| Source EUI | 81.7 kBtu/ft² |
| GHG emissions | 30 tCO₂e |
| GHG intensity | 0.8 kgCO₂e/ft² |
| Electricity | 286,066 kWh |
| Natural gas | 4,645 therms |
| Gross floor area | 42,752 sq ft |
| Source record | seattle:50708:2025 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2025latest | 94 | -1 | 36.6 kBtu/ft² | 30 tCO₂e |
| 2024 | 95 | 36.6 kBtu/ft² | 32 tCO₂e | |
| 2023 | — | — | 5 tCO₂e | |
| 2022 | — | — | — | |
| 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
- 743 N 35TH ST
- City
- Seattle
- State
- Washington
- ZIP
- 98103
- Coordinates
- 47.64993, -122.34802
Within ~1 km
Nearby benchmarked buildings
- Broadstone Vinscore 83
Multifamily Housing · 824,678 sq ft
- Bowman Stonewayscore 99
Multifamily Housing · 426,320 sq ft
- Parkview & Waterside Campusscore —
Office · 404,916 sq ft
- Adobe Building-801-N 34 St.score 74
Office · 280,957 sq ft
Office · 243,334 sq ft
- Epicenter Aptsscore —
Mixed Use Property · 225,145 sq ft
See also: most efficient in Seattle · biggest emitters
Frequently asked questions
What is Portal Apartments's energy grade?
Portal Apartments scores 94 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 Portal Apartments use?
Its 2025 site energy-use intensity was 36.6 kBtu/ft² (81.7 kBtu/ft² source) across 42,752 sq ft, including 286,066 kWh of electricity and 4,645 therms of natural gas.
What are Portal Apartments's carbon emissions?
Portal Apartments reported 30 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:50708:2025.