ID: AXO-SODO-ST3 DATE: 2026-01-30 LOCATION: 5th Ave S & S Lander St, Seattle, WA (SODO District) ZONING_ZONE: IC-85 (Industrial Commercial) / Stadium Transition Area Overlay
> QUERY: "Capitalization strategy for mixed-use development at the upcoming SODO Station Interchange (Ballard Link Extension)."
1. REGULATORY SCAN (THE MUNDANE)
Agent performed a deep-dive on the Seattle Municipal Code (SMC) Title 23 and Sound Transit 3 (ST3) Alignment Plans.
Constraint Identified: Under SMC 23.50.012, "Residential Uses" are strictly prohibited in IC and IG zones (except for caretakers), despite the transit proximity. The "Industrial Lands" policy prevents rezoning to standard residential mixed-use.
The Conflict: Client desires "Mixed-Use Capitalization," but the code forces industrial/commercial compliance. Additionally, the ST3 alignment requires a Grade Separation (elevated track), creating a shadow/noise easement over adjacent parcels.
The Agentic Fix: Pivot to "Hospitality & Tech-Office Mixed-Use." Leverage the Stadium Transition Area Overlay which allows Hotels/Lodging (Commercial Use) up to 85ft. Propose an "Air Rights Lease" to cantilever Class-A office space over the new transit guideway, trading structural easements for increased FAR (Floor Area Ratio) bonuses.
2. PHYSICAL & ENVIRONMENTAL
> SOIL DATA: Liquefaction Zone (High). Former tideflats require Deep Soil Mixing (DSM) or 100'+ steel piles. > STRUCTURAL LOAD: To mitigate liquefaction risks and span the rail guideway, the structure requires a Steel Diagrid Exoskeleton (lighter than concrete core) with viscous dampers.