Administrative overview · FIPS 48377
Presidio 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
Presidio County Floodplain Administrator and OSSF Designated Representative
For a project in or near Presidio 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
Presidio County Judge/Floodplain office: 432-729-4452; OSSF Designated Representative and Road and Bridge Supervisor Ruben Carrasco: 432-229-3528 or 432-386-0971
Call before mobilizing if the project has a boundary, occupancy, fire, septic, or utility question.
Permit counter
Presidio County Judge, Presidio County Courthouse, 1st Floor, 300 N. Highland Avenue, Marfa, TX 79843; Road and Bridge/OSSF, 300 E. O'Reilly Street, Presidio, TX 79845
Operating hours
Operating hours not verified
Review expectation
After a successful OSSF inspection, the county states that a Notice of Approval is issued in approximately seven working days. OSSF Authorization to Construct is valid for one year. The floodplain development permit is also valid for one year and must be renewed if work is not completed in that period. No initial floodplain or OSSF application-review time was 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 Presidio County
Who handles permitting for this jurisdiction?
Presidio County Floodplain Administrator and OSSF Designated Representative 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 Presidio County Judge/Floodplain office: 432-729-4452; OSSF Designated Representative and Road and Bridge Supervisor Ruben Carrasco: 432-229-3528 or 432-386-0971 and request the current application route before preparing a final submittal.
How long might review take?
After a successful OSSF inspection, the county states that a Notice of Approval is issued in approximately seven working days. OSSF Authorization to Construct is valid for one year. The floodplain development permit is also valid for one year and must be renewed if work is not completed in that period. No initial floodplain or OSSF application-review time was published.
How are inspections scheduled?
For floodplain review, submit the signed development application and a vicinity map; if the site is in a floodplain, include one copy of construction plans and specifications. For OSSF work, submit the application, fee, licensed site/soil evaluation, technical sheet, two copies of planning materials, and accurate directions to the County Judge and Designated Representative. After Authorization to Construct, contact Ruben Carrasco at 432-229-3528 or 432-386-0971 at least seven working days before the required inspection. Do not cover the system before inspection.
Which codes and exemptions should I review?
Presidio County requires a county floodplain development permit and applies FEMA flood-hazard maps and best available flood data to residential and nonresidential new construction, substantial improvements, fill placement, and alteration of waterways or drainage courses. The county OSSF Order and 30 TAC Chapter 285 govern new, modified, and repaired septic systems. Border-county subdivision compliance under Texas Local Government Code Chapter 232, Subchapter B, also requires qualifying property outside Marfa and Presidio city limits to obtain a county Certificate of Compliance before new utility service. No general county structural building-code edition was published for unincorporated construction in 2026. No county minor-structure or cosmetic-work exemption list was published. The floodplain administrator may issue an exemption certificate when the proposed site is outside an identified special flood-hazard area, but that certificate does not waive other federal, state, or local permits. The county's current OSSF packet does not publish an acreage-based permit exemption; applicants should obtain a county determination before septic work.