Administrative overview · FIPS 48069
Castro 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
State Fallback
This profile identifies a handoff outside the county’s ordinary structural permitting lane.
Required jurisdiction check
Confirm the controlling local or state authority before filing.
The record is marked State Fallback. That means the county profile should be treated as a routing brief: incorporated municipalities, a state building department, or a state fire marshal may control plan review, permits, and inspections. Contact the named agency below and verify the parcel’s jurisdiction before paying a fee or scheduling field work.
Responsible agency
Texas Commission on Environmental Quality Region 1 (Amarillo) / Castro County Judge and Floodplain Administration
For a project in or near Castro 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
806-647-4451 (Castro County Judge/Floodplain Administrator); 806-353-9251 (TCEQ Region 1, Amarillo)
Call before mobilizing if the project has a boundary, occupancy, fire, septic, or utility question.
Permit counter
Castro County Courthouse, 100 E. Bedford Street, Dimmitt, TX 79027; TCEQ Region 1, 5809 S. Western Street, Suite 260, Amarillo, TX 79110-3631
Operating hours
Castro County’s published County Judge page does not state office hours; the County Clerk publishes Monday–Thursday 8:00 AM–5:00 PM and Friday 8:00 AM–2:00 PM. TCEQ regional-office hours are N/A.
Review expectation
TCEQ OSSF permitting authorities must approve or deny complete planning materials and permit applications within 30 days of receipt; no Castro County general building-review timeline is published.
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 Castro County
Who handles permitting for this jurisdiction?
This record is marked State Fallback. Confirm whether a city, state agency, or other local authority controls the parcel before filing.
How should I begin an application?
Begin with the online permit gateway listed in the application guide. If the portal does not recognize the address or project type, contact 806-647-4451 (Castro County Judge/Floodplain Administrator); 806-353-9251 (TCEQ Region 1, Amarillo).
How long might review take?
TCEQ OSSF permitting authorities must approve or deny complete planning materials and permit applications within 30 days of receipt; no Castro County general building-review timeline is published.
How are inspections scheduled?
For septic work in Castro County, use TCEQ’s county permitting-authority search, submit the TCEQ OSSF application and required planning/site-evaluation materials to the authorized authority, and contact TCEQ Region 1 at 806-353-9251. Castro County’s floodplain administrator is the County Judge at 806-647-4451; contact that office before development in a mapped or regulated flood area. No general county building-inspection schedule was published.
Which codes and exemptions should I review?
Castro County’s official site publishes no general unincorporated building-permit program or building-code edition. The County Judge is the listed Castro County floodplain administrator and county floodplain development is subject to the applicable county/federal floodplain requirements. TCEQ Region 1 is the OSSF permitting fallback and applies Texas Health and Safety Code Chapter 366 and 30 TAC Chapter 285. Incorporated municipalities may impose their own building codes. No Castro County cosmetic-work exemption list was published. For OSSF work under TCEQ rules, the conditional 10-acre single-family exemption requires a licensed site evaluation, one qualifying dwelling on a tract of at least 10 acres, on-site effluent disposal, no nuisance or groundwater pollution, and all system components at least 100 feet from property lines. Defined emergency repairs may proceed without advance approval if reported in writing within 72 hours; grandfathered systems may qualify only when all state conditions are met.