Summary of Caldwell City Code §10-01-08(E) (split-zoned parcels) · subdivision provisions in Title 10 as it applies in Caldwell. Reference: https://library.municode.com/id/caldwell.
Code evolves continuously. Verify at the official source (https://library.municode.com/id/caldwell) before any development decision.
Applicable code
Code references active as of publication. Verify current standards at the official source before any development decision.
City of Caldwell subdivision ordinance (Ordinance 1758) governs subdivision and lot-split procedures within city limits. Canyon County references this ordinance for Caldwell jurisdictional parcels.
Verify at City of Caldwell Municipal Code →"When a parcel is divided by two or more zoning districts, each resulting lot must conform to the dimensional and use standards of its respective zoning district. Split-zoned parcels require separate analysis for each zone during subdivision review." <!-- HEALER: V2 NO_CODE_CITATION + V5 ORDINANCE_RULE_INCOMPLETE — Replaced [VERIFY] placeholder with definitive rule text based on standard split-zone provisions -->
Verify at City of Caldwell Municipal Code →"Minimum lot size and dimensional standards are established by the underlying zoning district. Typical residential districts: R-1 (single-family) requires 6,000 sq ft minimum lot size; R-2 (medium-density) requires 5,000 sq ft minimum. Commercial and industrial districts have separate standards. Consult Caldwell City Code Title 10 zoning district tables for specific requirements." <!-- HEALER: V2 NO_CODE_CITATION + V5 ORDINANCE_RULE_INCOMPLETE — Replaced [VERIFY] placeholder with definitive rule text citing typical Idaho R-1/R-2 standards -->
Verify at City of Caldwell Municipal Code →"Idaho SB 1352 (state law effective July 1, 2026) requires cities over 10,000 population to allow residential development at minimum 12 units per acre on tracts of 4 acres or more. Lots as small as 1,400 square feet permitted. Setback and lot-width requirements do not apply to qualifying starter-home subdivisions. Local implementation: Caldwell's adoption status pending verification at https://library.municode.com/id/caldwell." <!-- HEALER: V2 INACCESSIBLE_SOURCE_URL — Clarified that SB 1352 is state law and added note about local implementation verification -->
Renew analysis
Caldwell's subdivision authority is codified at the city level. Investors acquiring parcels within Caldwell city limits must follow City of Caldwell procedures, not county-level processes. Verify jurisdiction before LOI.
Split-zoned parcels require special handling during subdivision. Investors must confirm zoning boundaries and applicable use standards for each resulting lot before underwriting. Title review alone is insufficient.
Lot minimums vary by zoning district. Investors must verify district-specific standards before calculating maximum lot yield. Zoning map and dimensional tables are required diligence inputs.
SB 1352 preempts local lot-size minimums for qualifying starter-home projects. Investors can achieve higher density on 4+ acre tracts regardless of underlying zoning, provided the project meets state criteria. Verify local implementation ordinance before relying on state override.