Administrative overview · FIPS 48171
Gillespie County permit authority
The first compliance decision is jurisdictional: identify the office with statutory authority over your parcel, then use its filing and inspection sequence to keep the project moving.
Jurisdictional status
County
This county profile is the primary starting point for unincorporated-area permitting.
Responsible agency
Gillespie County Sanitation (OSSF) Department / Engineering Department
For a project in or near Gillespie County, this office is the identified point of contact for permit intake, statutory code enforcement, plan review coordination, and inspection release conditions. Confirm the parcel’s boundary and project type before relying on the county lane.
Direct contact
Gillespie County OSSF/Sanitation: 830-997-8191; Engineering/Floodplain/ROW: 830-307-6196 or 830-307-6048
Call before mobilizing if the project has a boundary, occupancy, fire, septic, or utility question.
Permit counter
Gillespie County OSSF Department, 101 West Main Street, Room B-101, Fredericksburg, TX 78624; Engineering Department, Room B-105
Operating hours
OSSF: 8:00 a.m.-12:00 p.m. and 1:00-5:00 p.m., closed noon-1:00 p.m. and holidays; Engineering: Monday-Friday, 8:00 a.m.-4:00 p.m.
Review expectation
N/A; Gillespie County’s reviewed OSSF and floodplain materials do not publish a standard review timeline.
Compliance workbench
Choose the next project decision.
Apply online
Open the verified digital gateway, application form, and review timeline.
Open guide →Fees & penalties
Understand fee schedules, enforcement exposure, and stop-work liabilities.
Open guide →Codes & exemptions
Read the code framework, minor-work exemptions, and inspection lane.
Open guide →Agency website
Visit the primary public source for current notices and contact changes.
Open guide →Source trail
Official sources for this profile
Use these direct agency or licensing links to confirm current instructions before you file, pay, or schedule work. External pages control if their information differs from this directory.
Project questions
Frequently asked questions for Gillespie County
Who handles permitting for this jurisdiction?
Gillespie County Sanitation (OSSF) Department / Engineering Department is the identified county-level authority for this profile. Confirm that the property is in its service area before filing.
How should I begin an application?
No verified online portal was located in the reviewed public materials. Contact Gillespie County OSSF/Sanitation: 830-997-8191; Engineering/Floodplain/ROW: 830-307-6196 or 830-307-6048 and request the current application route before preparing a final submittal.
How long might review take?
N/A; Gillespie County’s reviewed OSSF and floodplain materials do not publish a standard review timeline.
How are inspections scheduled?
Obtain and complete the OSSF application, including property/legal description, site information, installer details, and planning materials. Since August 1, 2025, obtain a Development Permit Determination and Site Plan with Narrative from the County Engineer before submitting the septic application; the OSSF application is incomplete without the signed determination. For floodplain development, email the completed development permit and supporting documents to floodplain@gillespiecounty.org or submit hard copy to the courthouse. The OSSF permit is valid for one year from purchase; after construction, the county issues Authorization to Construct/Notice of Approval through its inspection process and requires applicable aerobic affidavits and maintenance contracts.
Which codes and exemptions should I review?
Gillespie County’s current program requires OSSF planning materials, application, permit, and inspection for construction, alteration, extension, or repair of any OSSF, including systems on tracts of 10 acres or more. OSSF work follows Texas Health and Safety Code Chapter 366 and 30 TAC Chapter 285, plus the Gillespie County OSSF Order effective October 14, 2025. Floodplain work follows the county Flood Damage Prevention Ordinance effective July 28, 2025; no general countywide ICC building-code edition was verified. The county’s 2025 OSSF order requires permitting and inspection for all OSSF construction, alterations, extensions, and repairs regardless of tract size, so the ordinary 10-acre state exemption is not a county exemption. Aerobic systems and other systems identified by the county require maintenance by a TCEQ-registered technician or licensed maintenance provider rather than the homeowner. The reviewed materials do not publish a broad cosmetic building-work exemption list.