The Jefferson On Jefferson & 12th
Multifamily Housing in Seattle, WA · 500 12TH AVE · 98122
Seattle Energy Benchmarking Ordinance (SMC 22.920) · reporting year 2025
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 97 (band A) |
| Site EUI | 29.1 kBtu/ft² |
| Source EUI | 66.4 kBtu/ft² |
| GHG emissions | 28 tCO₂e |
| GHG intensity | 0.6 kgCO₂e/ft² |
| Electricity | 297,754 kWh |
| Natural gas | 4,327 therms |
| Gross floor area | 57,495 sq ft |
| Source record | seattle:49467:2025 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2025latest | 97 | -1 | 29.1 kBtu/ft² | 28 tCO₂e |
| 2024 | 98 | ±0 | 30.0 kBtu/ft² | 33 tCO₂e |
| 2023 | 98 | ±0 | 30.1 kBtu/ft² | 33 tCO₂e |
| 2022 | 98 | +1 | 30.4 kBtu/ft² | 33 tCO₂e |
| 2021 | 97 | ±0 | 30.7 kBtu/ft² | 33 tCO₂e |
| 2020 | 97 | -1 | 30.3 kBtu/ft² | 33 tCO₂e |
| 2019 | 98 | +2 | 28.5 kBtu/ft² | 31 tCO₂e |
| 2018 | 96 | -3 | 30.4 kBtu/ft² | 31 tCO₂e |
| 2017 | 99 | +1 | 29.8 kBtu/ft² | 38 tCO₂e |
| 2016 | 98 | +1 | 26.9 kBtu/ft² | 30 tCO₂e |
| 2015 | 97 | 28.9 kBtu/ft² | 32 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.
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Location
- Address
- 500 12TH AVE
- City
- Seattle
- State
- Washington
- ZIP
- 98122
- Coordinates
- 47.60642, -122.31637
Within ~1 km
Nearby benchmarked buildings
College/University · 2,099,379 sq ft
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Hospital (General Medical & Surgical) · 1,926,841 sq ft
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See also: most efficient in Seattle · biggest emitters
Frequently asked questions
What is The Jefferson On Jefferson & 12th's energy grade?
The Jefferson On Jefferson & 12th scores 97 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 The Jefferson On Jefferson & 12th use?
Its 2025 site energy-use intensity was 29.1 kBtu/ft² (66.4 kBtu/ft² source) across 57,495 sq ft, including 297,754 kWh of electricity and 4,327 therms of natural gas.
What are The Jefferson On Jefferson & 12th's carbon emissions?
The Jefferson On Jefferson & 12th reported 28 tCO₂e of greenhouse-gas emissions (0.6 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:49467:2025.