Skip to main content

Thurston County, Washington

The content on the Thurston County website is currently provided in English. We are providing the “Translation” for approximately 10 languages. The goal of the translation is to provide visitors with limited English proficiency to access information on the website in other languages. The translations do not translate all types of documents, and it may not give you an exact translation all the time. The translations are made through an automated process, which may not result in accurate or precise translations, particularly of technical and legal terminology.

Community Planning and Economic Development

Use the information below to find out which zoning your property is in and which codes apply. Zoning determines what you can build on or do with a property, the setbacks (also called "yard" requirements in code), lot sizes and more.

  • Zoning definitions
    • Jurisdiction of Influence - determines which zoning code applies.
    • UGA is Urban Growth Area -an area that will become part of Olympia, Tumwater or Lacey at some time in the future. Regulations in those areas typically match the city regulations. 
    • Legal lot - a parcel of land developed through laws in effect at the time of the original subdivision. The criteria to determine the legal status of a lot is specified in section 18.04.045 of Title18 of the Thurston County Code.
    • Tax lot / Tax parcel- a parcel which appears on the Thurston County Assessor's map and has been assigned a tax parcel number by the Assessor. Tax parcel numbers are assigned for billing purposes.