Clint "James" Garza, Director

The Hays County Development Services Department, has responsibilities in many areas of long-range planning, permitting, mapping and inspection, as well as investigation of environmental crimes. Development Services has jurisdiction in all unincorporated areas of the county and within some cities with which Hays County has entered into inter-local agreements.

As of February 2011 the Development Services Department is located at 2171 Yarrington Rd., San Marcos, TX 78666, mailing address P.O. Box 1006, San Marcos, TX 78667, phone 512-393-2150, fax 512-493-1915.  

Below is information about the services provided by the Development Services Department and required permits in Hays County. Click here for a list of forms and regulations available online.

A Development Authorization is required for all development in the unincorporated area of Hays County. Development is defined as “all land modification activities, including the construction of or additions to buildings, roadways, dams, paved storage areas, parking lots, storm water management facilities and other impervious structures or surfaces.” All divisions of land within Hays County are subject to the Hays County Development Regulations.

On-site Sewage Facilities (OSSF): Private homebuilders and commercial developers must receive an OSSF permit for new construction or additions to existing structures. Applicants must submit a floor plan of the proposed structure, a detailed site plan, a legal description, a site evaluation and design for the permitting process to begin. To view or download a permit application click here.

Floodplain Regulation: Homebuilders and developers must ensure that new construction and additions to existing structures do not encroach on a floodplain as determined by the Federal Emergency Management Agency’s Flood Insurance Rate Maps. Hays County floodplain regulations are part of the Hays County Flood Damage Prevention Ordinance (Chapter 735). There is a $25 fee for floodplain determinations for those individuals who need to know whether a property is in the floodplain and don’t have access to the floodplain maps. Online maps are available from FEMA’s Map Service Center, 1-800-358-9616, or online at

Consumer Health: Compliance with local and state code regulations is required for retail food establishments (restaurants and grocery stores) and day-care/foster-care facilities. If you have a complaint about a facility, or if you are an owner/manager who wants to have your facility inspected, please contact our Consumer Health personnel. Additional information about retail food establishments can be found at the Department of State Health Services at

All day care facilities and foster homes are licensed by the Texas Department of Family and Protective Services. For licensing information, please go to

Environmental Crime: Criminal Investigators commissioned by the Hays County Sheriff’s Department are responsible for the enforcement of state environmental laws. Investigations are conducted into improper storage, transportation or disposal of hazardous materials, used motor oil, batteries and tires. Investigations are also conducted into illegal dumping, outdoor burning and abandoned properties, among other violations. The Hays County Criminal District Attorney’s Office prosecutes the violators. To report a suspected environmental crime, please contact the Criminal Investigators.

Geographic Information System (GIS)/9-1-1 Addressing: Hays County has joined with the Capital Area Council of Governments (CAPCOG) to build and maintain a GIS data repository and state-of-the-art 9-1-1 emergency response system. The GIS uses aerial photography and road/address information to assist dispatchers and emergency personnel responding to 9-1-1 calls. Maps and GIS Data are available here. If you have questions about maps or data, please email

GIS also assigns 9-1-1 addresses for most of Hays County. To purchase a 12”x6” blue-and-white reflective address sign for your home or business, or for more information about GIS services, contact the GIS staff at PO Box 1006, San Marcos, TX 78666-1006, phone 512-393-2160,