WA HB1818

Eliminates the distinction between short plats (4 or fewer lots) and regular subdivisions, creating a uniform process for all land divisions of two or more lots effective July 1, 2026

Requires all subdivision applications submitted after July 1, 2026 to be processed administratively without public hearings, except for subdivisions outside urban growth areas

Creates a new administrative lot split process allowing property owners in residential zones to divide one lot into two lots without going through full subdivision procedures, provided minimum lot sizes are met

Reduces the preliminary plat approval timeline from seven years to five years for submitting final plats, and establishes a 20-day public comment period (30 days for shoreline areas) instead of requiring public hearings

Requires cities, towns, and counties to adopt ordinances consistent with these requirements by June 30, 2026, with the new provisions superseding any conflicting local regulations on July 1, 2026