Aj Apartments
Multifamily Housing in Seattle, WA · 4505 42ND AVE SW · 98116
Seattle Energy Benchmarking Ordinance (SMC 22.920) · reporting year 2025
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 98 (band A) |
| Site EUI | 28.7 kBtu/ft² |
| Source EUI | 67.9 kBtu/ft² |
| GHG emissions | 22 tCO₂e |
| GHG intensity | 0.5 kgCO₂e/ft² |
| Electricity | 277,560 kWh |
| Natural gas | 3,090 therms |
| Gross floor area | 49,031 sq ft |
| Source record | seattle:50480:2025 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2025latest | 98 | +1 | 28.7 kBtu/ft² | 22 tCO₂e |
| 2024 | 97 | ±0 | 29.7 kBtu/ft² | 24 tCO₂e |
| 2023 | 97 | -1 | 30.3 kBtu/ft² | 23 tCO₂e |
| 2022 | 98 | -1 | 29.3 kBtu/ft² | 22 tCO₂e |
| 2021 | 99 | ±0 | 26.6 kBtu/ft² | 20 tCO₂e |
| 2020 | 99 | ±0 | 26.8 kBtu/ft² | 23 tCO₂e |
| 2019 | 99 | 26.9 kBtu/ft² | 23 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
- 4505 42ND AVE SW
- City
- Seattle
- State
- Washington
- ZIP
- 98116
- Coordinates
- 47.56269, -122.38578
Within ~1 km
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See also: most efficient in Seattle · biggest emitters
Frequently asked questions
What is Aj Apartments's energy grade?
Aj Apartments scores 98 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 Aj Apartments use?
Its 2025 site energy-use intensity was 28.7 kBtu/ft² (67.9 kBtu/ft² source) across 49,031 sq ft, including 277,560 kWh of electricity and 3,090 therms of natural gas.
What are Aj Apartments's carbon emissions?
Aj Apartments reported 22 tCO₂e of greenhouse-gas emissions (0.5 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:50480:2025.