On December 17, 2019, the Commissioner's Court approved revisions to the Williamson County's Subdivision Regulations. These revised regulations were made effective immediately for all new applications received on or after December 17, 2019.
On January 18, 2018, the Commissioner's Court approved a clarification to Williamson County's Subdivision Regulations, by adopting amendments to Appendix A – Platting Guidelines. These revised regulations were made effective immediately for all new applications received on or after January 18, 2018.
On October 24, 2017, the Commissioner's Court approved a clarification to Williamson County's Subdivision Regulations, specifically a clarification regarding condominium development. These revised regulations were made effective immediately for all new applications received on or after October 24, 2017.