First, locate the parcel
Schertz's maps page offers both an interactive map with zoning information and a downloadable map of current municipal and ETJ boundaries. The city cautions that these maps show approximate relative locations and are not on-the-ground surveys. Its GIS office is at 1400 Schertz Parkway, Building 1, and can be reached at 210-619-1184.
Use the boundary result to frame the next question: Is the parcel inside a city, in its ETJ, or outside both? An ETJ location alone does not identify the plat-approving office. Guadalupe County asks owners to give its Environmental Health Department the property location for a jurisdiction review under the applicable county-city agreement.
Then ask about plats, zoning and permits
The cited pages identify application or inquiry routes; they do not establish every permit required for a particular project.
For unincorporated land, Guadalupe County says its subdivision regulations guide development and directs someone seeking to subdivide property to request a pre-development meeting with its Platting Department. The county FAQ says this also applies when an owner proposes to survey out only a small piece. It says the county has 30 days to approve or deny a completed subdivision application.
Seguin's Planning Applications and Fees page separates subdivision applications from zoning applications. It lists a subdivision plat application, a zoning change application and a zoning verification letter application, among other forms. Choose the question you need answered before choosing a form: a plat submission and a zoning change are listed as different applications. The city lists its address as 205 N. River Street, Seguin, and its main number as 830-379-3212.
In Schertz, the city's Planning and Zoning FAQ explains that zoning identifies permitted land uses and helps regulate development size, intensity and height. The FAQ directs owners unsure of a property's zoning to the Planning and Zoning Division at 210-619-1780. Its zoning map and interactive map are available through the city's maps page; ask the division to confirm how a proposed use and any plat application should proceed.
Where to go next
For a county subdivision or an ETJ jurisdiction review, contact Guadalupe County Environmental Health at 830-303-8858 or development@co.guadalupe.tx.us, with the property location ready. For Seguin, inspect the city's application lists before calling 830-379-3212. For Schertz, inspect the municipal and ETJ maps and call Planning and Zoning at 210-619-1780 about zoning or the next application. Those offices can identify the route for a specific parcel and proposal.
