Annexation is the process to add unincorporated areas into the City limits. Annexations must be adjacent to existing City limits and meet criteria established by State law. Annexations can be done by petition by property owners, a vote by registered voters, or a petition of voters and property owners. If the City Council accepts the annexation, the proposal can proceed under either the petition method or election process.More information on the annexation process is outlined at the Municipal Research Services Center for Washington. Please contact City Planning Department staff at 425-257-8731 to schedule a meeting to discuss the annexation process and to receive the Notice of Intent Form which initiates the annexation request.