ADU rules in Guadalupe County, TX — also called accessory dwelling unit regulations or granny flat ordinances — cover setbacks, owner-occupancy, parking, and permit requirements.
Texas counties cannot zone, so unincorporated Guadalupe County sets no ADU size, setback, or occupancy limit. An accessory dwelling with plumbing requires an on-site sewage (OSSF) permit under Health & Safety Code Chapter 366.
Guadalupe County cannot zone, so it imposes no accessory dwelling unit standards, no owner-occupancy rule, and no size cap in the unincorporated county. The real constraints are septic capacity and deed restrictions. Any ADU with a kitchen or bathroom adds wastewater load, and Health & Safety Code Section 366.051 requires a permit and approved plan to construct or alter the on-site sewage disposal system serving it. Guadalupe County Environmental Health, a TCEQ authorized agent, issues that permit. The existing septic system must be sized for the added bedrooms or a new one installed. HOA deed restrictions in subdivisions frequently prohibit second dwellings.
Adding an ADU on septic without an OSSF permit violates Chapter 366 and stops the project until permitted. HOA deed restrictions barring second units are enforced by the association.
Other ordinances people look up for this city. Green dot = verified primary-source excerpt.
Guadalupe County, TX
Guadalupe County may require hosts to carry liability insurance for short-term rental properties. Minimum coverage amounts vary by jurisdiction.
Guadalupe County, TX
Guadalupe County limits the number of guests allowed in short-term rental properties. Occupancy caps are typically based on bedroom count or square footage t...
Guadalupe County, TX
Guadalupe County has no ordinance on holiday lights, inflatables, or yard displays in unincorporated areas; HOA deed restrictions set any limits. Property Co...
Guadalupe County, TX
On your own property in unincorporated Guadalupe County there is no county rule on garage-sale signs. But Transportation Code 393.002 makes it illegal to sta...
Guadalupe County, TX
Political signs are strongly protected here. Election Code 259.003 bars Seguin, Schertz, and Cibolo from banning, charging for, or size-limiting a political ...
Guadalupe County, TX
No general rental-registration or landlord-license program exists in unincorporated Guadalupe County or in Seguin, Schertz, and Cibolo. Seguin registers only...
See how Guadalupe County's adu rules rules stack up against other locations.
Help us keep this page accurate. If you notice an error or outdated information, let us know.