Mason & Main Building A
Multifamily HR (10+) in Seattle, WA · 209 12TH AVE S · 98144
Seattle Energy Benchmarking Ordinance (SMC 22.920) · reporting year 2024
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 100 (band A) |
| Site EUI | 22.2 kBtu/ft² |
| Source EUI | 47.3 kBtu/ft² |
| GHG emissions | 194 tCO₂e |
| GHG intensity | 0.7 kgCO₂e/ft² |
| Electricity | 1,476,978 kWh |
| Natural gas | 31,084 therms |
| Gross floor area | 358,048 sq ft |
| Source record | seattle:50884:2024 |
Compliance context
Seattle Energy Benchmarking Ordinance (SMC 22.920)
Seattle's Building Emissions Performance Standard (2023) sets declining carbon targets for buildings over 20,000 sq ft, with penalties for non-compliance beginning in the 2030s.
Ownership
No owner listed in the disclosure.
Own or manage this building? Claim it to correct the record and get compliance alerts.
Location
- Address
- 209 12TH AVE S
- City
- Seattle
- State
- Washington
- ZIP
- 98144
- Coordinates
- 47.60068, -122.31755
Within ~1 km
Nearby benchmarked buildings
Hospital (General Medical & Surgical) · 1,926,841 sq ft
Medical Office · 726,103 sq ft
Hospital (General Medical & Surgical) · 597,519 sq ft
- Emerson (prev Modera First Hill)score 100
Multifamily MR (5-9) · 393,343 sq ft
- Broadstone Lexington Southscore 100
Multifamily MR (5-9) · 390,855 sq ft
Mixed Use Property · 383,914 sq ft
See also: most efficient in Seattle · biggest emitters
Frequently asked questions
What is Mason & Main Building A's energy grade?
Mason & Main Building A scores 100 out of 100 on ENERGY STAR — band A (High performer (85–100)) — in its 2024 Seattle disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does Mason & Main Building A use?
Its 2024 site energy-use intensity was 22.2 kBtu/ft² (47.3 kBtu/ft² source) across 358,048 sq ft, including 1,476,978 kWh of electricity and 31,084 therms of natural gas.
What are Mason & Main Building A's carbon emissions?
Mason & Main Building A reported 194 tCO₂e of greenhouse-gas emissions (0.7 kgCO₂e/ft²) for 2024. Seattle's Building Emissions Performance Standard (2023) sets declining carbon targets for buildings over 20,000 sq ft, with penalties for non-compliance beginning in the 2030s.
Dataset updated . Source: Building Energy Benchmarking disclosure, record seattle:50884:2024.