Bb House
Multifamily Housing in Seattle, WA · 452 12TH AVE · 98122
Seattle Energy Benchmarking Ordinance (SMC 22.920) · reporting year 2025
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 100 (band A) |
| Site EUI | 25.5 kBtu/ft² |
| Source EUI | 46.0 kBtu/ft² |
| GHG emissions | 17 tCO₂e |
| GHG intensity | 0.8 kgCO₂e/ft² |
| Electricity | 67,839 kWh |
| Natural gas | 3,050 therms |
| Gross floor area | 21,072 sq ft |
| Source record | seattle:24371:2025 |
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
- 452 12TH AVE
- City
- Seattle
- State
- Washington
- ZIP
- 98122
- Coordinates
- 47.60568, -122.31651
Within ~1 km
Nearby benchmarked buildings
College/University · 2,099,379 sq ft
Parking · 2,080,885 sq ft
Hospital (General Medical & Surgical) · 1,926,841 sq ft
Medical Office · 726,103 sq ft
- 1101 Madison Towerscore 70
Medical Office · 690,158 sq ft
Hospital (General Medical & Surgical) · 597,519 sq ft
See also: most efficient in Seattle · biggest emitters
Frequently asked questions
What is Bb House's energy grade?
Bb House scores 100 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 Bb House use?
Its 2025 site energy-use intensity was 25.5 kBtu/ft² (46.0 kBtu/ft² source) across 21,072 sq ft, including 67,839 kWh of electricity and 3,050 therms of natural gas.
What are Bb House's carbon emissions?
Bb House reported 17 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:24371:2025.