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When a permit is required
Permit triggers and exempt work for Llano County
Based on reviewed county sources, unincorporated Llano County requires county permits or approvals for floodplain development, OSSF work, road cuts, plats and replats, RV parks, mobile home rental communities, and similar development matters handled by Development Services. No clear public evidence of a general countywide building permit requirement for all construction in the unincorporated area was found.
Note: No public countywide exempt-work list was found. Because the county does not publish a general unincorporated-area building permit program, exemption analysis is narrower and should be tied to the specific county-controlled activity, especially floodplain development, OSSF, subdivision, and road-cut work.
- Floodplain applications require: pre-construction elevation certificate, site plan with elevations, development or architectural plans, flood vent or floodproofing information if applicable, geotechnical compaction study if fill is used, identification for builder and owner, letter of authorization if needed, warranty deed if needed, and full scope of associated development.
- OSSF work governed by county OSSF order and state TCEQ rules.
- Building code
- No countywide IBC or IRC adoption for a general unincorporated-area building permit program was found. Verified county regulatory documents include the Llano County Flood Prevention Order, the Llano County On-Site Sewage Facility Order, and county subdivision regulations.
- Owner-builder
- The floodplain checklist requires identification for both builder and owner and allows a letter of authorization if someone other than the owner applies. No separate county owner-builder packet was found. County sources do not show a general county residential building code program.
- Contractor requirements
- No countywide contractor licensing program for general building permits was found. OSSF work remains subject to applicable state and county OSSF rules.
Application process
Typical processing: 7 to 10 business days for non-floodplain determinations. More time may be required for floodplain development, septic permits, and commercial projects.
- 01 Determine whether the project triggers one of the county's verified programs: floodplain development, OSSF, road cut, plat or replat, RV park, mobile home rental community, or related development review.
- 02 Submit the applicable application through the county's iWorQ portal.
- 03 Provide all required supporting materials. For floodplain projects, the county publishes a separate Floodplain Development Requirements checklist. For OSSF work, county order and state TCEQ rules apply.
- 04 Wait for county review. The county reviews applications for compliance with commissioners court orders and notes that separate local, county, state, or federal approvals may also be required before permit issuance.
- 05 Pay the applicable county fees under the published fee schedule.
- 06 Complete required inspections or floodplain compliance documentation, depending on permit type, before final county closeout.
Typical processing time: 7 to 10 business days for non-floodplain determinations. More time may be required for floodplain development, septic permits, and commercial projects.
Fee schedule
Effective 2026-03
Fees change periodically. Confirm at the official fee schedule ↗ (effective 2026-03) before budgeting.
Required inspections
Scheduling and sequence
Typical sequence: Depends on permit type. Floodplain projects require the county's published pre-construction submittals and additional compliance materials tied to the flood order. OSSF inspections governed by county OSSF order and TCEQ rules. The county does not publish a general city-style building inspection sequence for all unincorporated construction.
Frequently asked
Common questions about unincorporated Llano County permits
01 Do I need a building permit in unincorporated Llano County, TX? ▸
02 How much does a building permit cost in unincorporated Llano County, TX? ▸
03 How do I apply for a building permit in unincorporated Llano County, TX? ▸
04 How long does it take to get a building permit in unincorporated Llano County, TX? ▸
05 How do I schedule a building inspection in unincorporated Llano County, TX? ▸
Educational reference. Permit rules and fees change — confirm current requirements directly with Development Services and 9-1-1 Addressing before applying. Jaspector is not legal advice.