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A Preliminary Plat Application establishes conditions to subdivide land into 5 or more (rural), or 10 or more (urban) legal building lots, consistent with adopted regulations.
A Preliminary Short Plat Application establishes conditions to subdivide land into 2 to 4 (rural) or 9 (urban) legal building lots.
A Pre-Application meeting is mandatory prior to filing and application for a preliminary plat or short plat.
Cost and timeline
Check our current fee schedule for an estimate
Timeline for a decision on a Plat is 150 days and 120 days for a Short Plat.
Application
Check our online permits page to see if you can submit these forms through MyBuildingPermit
Schedule a land use inspection
King County inspects work to ensure code compliance and safety requirements.
Pre-Applications
Pre-Application Meeting Request
Pre-Application Meeting Requests and Waivers
Pre-Application Waiver Request
Land Use - Subdivisions
Critical Areas Compliance Affidavit
Affidavit of Correction of Plat
Applicant Status
Public Agency, or Public Utility or Private Utility (1.06MB)
Corporation or Business Association (1.05MB)
Plats: Procedure for Checking of Final Plats
Land Use Permit Application Form
Plat Alteration Submittal Instructions
Preliminary Subdivision Applications: Instructions
Quit Claim Deed for County Right-of-Way
Residential Density Calculation
SEPA Checklist
SEPA Greenhouse Gas Emissions
Worksheet Instructions (182KB)
Workhsheet (spreadsheet) (211KB)
SEPA Only Submittal Process
Sewer Availability
Certificate of Sewer Availabilty (200KB)
Soil Health: Achieving the Post-construction Soil Standard
Information and On-Line Calculator
Subdivision Exemption Request
Title Page: Final Plat and Final Plat Sheets Templates
See, Computer Aided Design (CAD) Templates and Other Data Resources packet
Water Service Requirements
Land Use - Short Subdivisions
Short subdivisions, often referred to as a "Short Plat", establishes conditions to subdivide land into 2 to 4 (rural) or 9 (urban) legal building lots.
Bulletin 25: Short Subdivisions
Critical Areas Compliance Affidavit
Affidavit of Correction of Short Plat
Applicant Status
Public Agency, or Public Utility or Private Utility (1.06MB)
Corporation or Business Association (1.05MB)
Short Subdivision (Short Plat) Engineering Review Final Submittal
Land Use Permit Application Form
Preliminary Short Subdivision Applications: Instructions
Quit Claim Deed for County Right-of-Way
Residential Density Calculation
SEPA Checklist
SEPA Greenhouse Gas Emissions
Worksheet Instructions (182KB)
Workhsheet (spreadsheet) (211KB)
SEPA Only Submittal Process
Sewer Availability
Certificate of Sewer Availabilty (200KB)
Soil Health: Achieving the Post-construction Soil Standard
Information and On-Line Calculator
Title Page: Short Plat (or Alteration) Templates
See, Computer Aided Design (CAD) Templates and Other Data Resources packet