The County Engineer is responsible for enforcing the development requirements in the Subdivision Regulations. In addition, the County Engineer's office also is responsible for:

• Inspection of county road construction
• Inspection of utility installation in county right-of-way
• Right-of-way acquisition

Texas counties have not been given general zoning authority by the state legislature, so the County does not deal with most site plans or issue building permits except for health and safety issues handled by the Williamson County and Cities Health District. For more information, please see Documents and Forms on the left or the answers to Frequently Asked Questions (FAQ's).

A floodplain is a geographic area subject to flooding; land adjacent to a waterway necessary to contain a flood. Floodplains can be associated with rivers, lakes, streams, channels, even small creeks that are normally dry most of the year. Floodplain regulations are enforced to protect public safety and health. In addition, they encourage sound engineering practices and efficient floodplain management techniques. All construction in Williamson County must adhere to federal floodplain regulations. Regulations are established by the Federal Government and implemented by the Federal Emergency Management Agency (FEMA). The Williamson County Engineer’s Office is responsible for examining construction for compliance with local and federal floodplain regulations.

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