Texas Porch

Septic / Water

Most rural Austin County homes use private septic systems regulated by the state

Outside city limits in Austin County, most homes use a private septic system. Texas calls these on-site sewage facilities (OSSFs). You need a permit before installing or making major repairs to one.

Austin County Rules & Licenses

Austin County is mostly rural. Homes outside the small cities almost always use a private septic system. Texas calls these on-site sewage facilities, or OSSFs.

You need a permit before you install, change, or extend an OSSF. First, find out who your local permitting authority is. In areas with no county or city program, the TCEQ (Texas Commission on Environmental Quality) regional office fills that role.

Every OSSF must be designed around a site evaluation. The evaluation looks at soil type and site conditions. Any paid install work must be done by a TCEQ-licensed installer. The one exception: a home owner may do the work themselves on their own single-family home.

If your property is 10 acres or more, you may not need a permit under the state's "10-acre rule." You still have to meet all planning, construction, and installation standards.

Buying rural land with a house? Ask for permit records and pumping records for the septic system. The TCEQ website lists local permitting authorities by county. It also has guides on upkeep and fixing problems.

Source to confirm: TCEQ — On-Site Sewage Facilities (OSSF) Program

More Austin County notes

Property tax

Austin County has two separate property tax offices

The appraisal district values your property and collects taxes. The tax assessor-collector handles vehicle titles and registration. They are different offices at different addresses.

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Agriculture / Property tax

Productive land in Austin County can qualify for ag valuation

Landowners who farm, ranch, or manage land for wildlife may qualify for ag valuation (1-d-1). It taxes land on what it produces, not what it would sell for — often a much lower bill.

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Flood

The Brazos River forms the eastern edge of Austin County — and a real flood risk

The Brazos River runs along Austin County's eastern border. Property near the river and its tributaries can sit in a FEMA high-risk flood zone. That can mean required flood insurance and stricter building rules.

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State park / Outdoor recreation

Stephen F. Austin State Park offers camping and trails near the Brazos

Stephen F. Austin State Park sits along the Brazos River in San Felipe and offers year-round camping, five miles of trails, and easy access to the adjacent state historic site.

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