Williamson County’s subcommittee on subdivision regulations is seeking feedback on proposed changes as the county navigates projected growth.

County data shows a 29.4% growth in homes sales from September 2019 to September 2020. The county population is also estimated to reach 1.64 million by 2050.

“Our task has been to work with the development community and stakeholders to review the county’s subdivision process and recommend improvement to the regulations that will make those subdivision process more effective [and] timely, all while following state law,” Commissioner and subcommittee member Cynthia Long said.

The subcommittee launched in February 2019 with the goal of developing systems to provide consistent information for the development community as well as utilize taxpayers’ dollars wisely, among other tasks, Gray Engineering President and subcommittee member David Gray said.

The proposed changes are as follows:

  • provide guidance on asphalt and road mixes where none existed before;

  • require use of Atlas 14, a federal study on flood risks, when designing detention ponds;

  • increase fees to accommodate increased staffing due to growth;

  • remove the ponded width (finds the depth of the water in the curb and gutter section) requirements due to its confusion;

  • require RV parks in floodplains to have an evacuation plan for safety purposes;

  • require groundwater evaluation to ensure there is enough supply for the subdivision; and

  • require the maintaining of drainage patterns to existing structures when new development occurs.


For further details on the proposed changes, click here.


Feedback will be accepted through 5 p.m. on May 19. Those who would like to provide comments can complete an online comment form, email [email protected] or mail comments to Williamson County, Public Information Office, 710 S. Main St., Ste. 101, Georgetown, TX 78626

Comments will be considered by the subcommittee before a final proposal will be recommended to the county commissioners for further action in late 2021.