The Protest Deadline for most property owners in Williamson County was May 15, 2023.
See your Notice of Appraised Value for your specific deadline.
GIS Data – Old Schema
We have made changes to our GIS data schema. This page contains data in the old format. This data will be maintained through the end of 2019 and deprecated in 2020. The new schema can be found on our GIS Data page
Here are a few documents that might be helpful:
Additional Open Records File Layout
Certified/Supplement Roll File Layout
File Layout for the tables updated daily
Property Data Export File Layout
WCAD’s data is presented in various formats and file types. Click on a data type below to view all of the downloadable content available within it.
Certified Data Preliminary Data Historical Data GIS Data Agent Data