ID: AXO-BEL-882 DATE: 2026-01-30 LOCATION: Somerset/Bridle Trails Vicinity, Bellevue, WA (Near Local Primary School) ZONING_ZONE: R-3.5 (Single-Family Residential) / Critical Areas Overlay
> QUERY: "Maximum unit yield on wetland-constrained steep slope in Bellevue; high community opposition; near school zone."
1. REGULATORY SCAN (THE MUNDANE)
Agent performed a deep-dive on the Bellevue Land Use Code (LUC) 20.25H.
Constraint Identified: Under LUC 20.25H.045, the "Maximum Development Density" is calculated by a specific formula that subtracts 100% of critical areas and buffers from the buildable area. Steep slopes (>40%) are strictly "no-build" under LUC 20.25H.120.
The Conflict: Proximity to a school triggers higher scrutiny for Safe Routes to School (SRTS) and traffic mitigation. Unfriendly neighbors are likely to appeal any SEPA Threshold Determination or Preliminary Plat approval, potentially delaying the project by 12–18 months at the Hearing Examiner level.
The Agentic Fix: Propose a Conservation Subdivision under LUC 20.45A.060. This allows for smaller lot sizes (cluster housing) to preserve the wetlands while maintaining the total unit count. To bypass neighbor "bulk/scale" complaints, utilize Unit Lot Subdivisions for fee-simple townhomes if the underlying zoning allows for duplex/triplex density.
2. PHYSICAL & ENVIRONMENTAL
> SOIL DATA: Vashon Till (Pre-compacted) with High Landslide Hazard potential on eastern boundary. > STRUCTURAL LOAD: Vertical density requires Deep Foundation Piling (Auger Cast) to ensure slope stability near the school boundary. Drainage must be handled via a Vaulted Stormwater System to avoid surface runoff into the wetland buffers.