Sale data history including transfer information and final values.

Preliminary Property characteristics

This shapefile contains the Subdivision Boundaries for Williamson County, Texas. This shapefile is created and maintained by the Williamson Central Appraisal District Mapping Department. The data in this layer are represented as polygons.

This shapefile contains the City Boundaries for Williamson County, Texas. This shapefile is created and maintained by the Williamson Central Appraisal District Mapping Department. The data in this layer are represented as polygons.

Preliminary Property appraisal characteristics

Building permit information for current and past years.

Certified assessment data updated monthly. Contains certified values of the last supplement, including Market, assessed, and taxable value.

Preliminary Final values. This dataset is updated weekly beginning April 1st.

This shapefile contains the County Boundary for Williamson County, Texas. This shapefile is created and maintained by the Williamson Central Appraisal District Mapping Department. The data in this layer are represented as a polygon.