San Saba County, Texas requires a floodplain development permit for construction in mapped special flood-hazard areas, not a general county building permit1. Inside the City of San Saba, the city administers zoning, building permits and adopted construction codes; San Saba County separately administers septic permits2345. County subdivision review is another separate process6.
At a glance
- Building permit
- County floodplain development permit required in mapped special flood-hazard areas1
- City building permit
- City process allows a homeowner-as-contractor option and applies adopted construction codes34
- Occupancy approval
- Certificate of compliance required for covered floodplain development7
- Zoning
- No county zoning rules for unincorporated land; City of San Saba administers city zoning82
- Septic permits
- Handled by San Saba County's OSSF office5
- RV / tiny home occupancy
- No county zoning restriction on unincorporated land8
- Subdivision plats
- County review applies outside the cities' exclusive platting jurisdictions6
- Floodplain permit fee
- $20 application fee, plus additional review, inspection and approval costs9
Who to call
Septic permits
San Saba County On-Site Sewage Facility (OSSF) Office
On-site sewage facility (septic) permits for San Saba County. The county administers its own OSSF program and local rules rather than deferring to the state.
500 E. Wallace, Suite 111, San Saba, TX 76877
Floodplain permits
San Saba County Office of Emergency Management (Floodplain Administrator)
Floodplain development permits for San Saba County. The county's floodplain ordinance names the Emergency Management Coordinator as the Local Administrator who grants or denies floodplain development permits.
San Saba County Courthouse, 500 E Wallace St., San Saba, TX 76877
Contact details are copied from each office’s official page and were checked against it on October 10, 2026.
Off-grid gear
Going off-grid in San Saba County means bringing your own water and power. The kit we’d start with:
- Water Crystal Quest Filter any source — well, rain, or creek — to drinking-clean.
- Power Bluetti Solar generators and home battery backup for living off the grid.
- Septic Soil percolation test kit Run your own perc test before paying an engineer — the first thing a septic office asks about.
- Water Well water test kit Bacteria, nitrates, hardness — know what the well on a parcel is really pumping.
These are affiliate links — we may earn a commission, at no cost to you. As an Amazon Associate, Bolthole Index earns from qualifying purchases.
Do you need a building permit in San Saba County, Texas?
San Saba County requires a floodplain development permit before construction or other development begins in a mapped special flood-hazard area; the rule is limited to those areas and is not a general county building permit1. Apply on the Local Administrator's form; scaled plans may need to show the work, structures, fill, stored materials, drainage and elevations10. The application fee is $20, plus county review, inspection and approval costs1. Inside the City of San Saba, use the city's building-permit process; its application allows the homeowner to be the contractor, subject to plan review, approval and payment of applicable fees3. The city adopted the 2021 International Residential Code and other listed construction codes, but that adoption does not apply to unincorporated county land4. City building approval does not replace the county septic-permit process5.
Who issues building and floodplain permits in San Saba County?
San Saba County's Emergency Management Coordinator administers county floodplain development permits10. Contact the county Office of Emergency Management when a parcel may lie in a mapped special flood-hazard area11. Covered construction receives periodic floodplain-compliance inspections, and the Local Administrator issues a certificate of compliance after satisfactory completion and receipt of required documentation127. Inside the City of San Saba, the city's process governs building permits and the city administers zoning32. Septic permits remain a separate San Saba County OSSF matter5.
Does San Saba County have zoning?
Unincorporated San Saba County has no county zoning rule setting minimum dwelling size, minimum lot size, setbacks, lot coverage or building height8. County zoning also does not restrict accessory dwellings, RV occupancy, tiny-home occupancy or temporary camping on unincorporated land8. That does not remove the county floodplain development permit or subdivision-plat rules16. The City of San Saba administers zoning within its incorporated limits, but the cited city zoning authority does not apply to unincorporated San Saba County2. County septic permitting remains a separate approval path5.
How do septic permits work in San Saba County?
San Saba County's On-Site Sewage Facility office administers septic permits and county OSSF rules513. Texas generally requires a permit and approved plan to construct, alter, repair, extend or operate an OSSF14. A narrow exception may apply to one single-family dwelling on at least 10 acres only if the local authority does not require a permit and every state condition is met, including at least 100 feet from every system component to the property line14. Emergency repairs must be reported in writing within 72 hours after work begins14. Residential graywater can support uses such as gardening or toilet flushing, but it excludes toilet waste and wastewater from food-preparation or food-disposal sinks, so it does not replace compliant sewage handling15. Only about 1.3% of county soils are rated without severe limits for a conventional drain field, so arrange the site evaluation before fixing the house location16.
Can you live in an RV or tiny home on your land in San Saba County?
San Saba County does not use county zoning to restrict RV occupancy, tiny-home occupancy or temporary camping on unincorporated land8. That zoning answer does not waive the county floodplain development permit or septic permit requirements15. Manufactured homes in covered flood zones face elevation and anchoring standards, and a manufactured home needs an official 9-1-1 address before utilities can be connected17. Inside the City of San Saba, city zoning applies, so confirm the parcel's zoning district before relying on the unincorporated-area answer2. County septic approval remains separate from city zoning and building approval5.
Building a home in San Saba County: the steps, in order
- Confirm whether the parcel is inside the City of San Saba; city zoning, adopted construction codes and the city building-permit process apply there243.
- If land will be divided, determine whether county plat approval applies; covered plats go to the Commissioners Court for two readings at least one month apart6.
- Check the flood map and obtain the county floodplain development permit before work in a mapped special flood-hazard area10.
- Arrange the septic site evaluation and apply through the San Saba County OSSF office1814.
- For covered floodplain construction, coordinate inspections and obtain the certificate of compliance before occupancy127.
- If access meets a state highway, obtain TxDOT's driveway permit before work in the right of way19.
What to check before you buy land in San Saba County
Check city-limit, flood-map and plat status first: City of San Saba zoning and building permits, county floodplain permits, and county subdivision review are distinct approval paths216. Texas offers agricultural special appraisal when land meets the qualifying-use, intensity and use-history tests; that tax treatment is different from the agricultural platting exception for qualifying divisions outside municipal limits2021. Test the proposed septic area early because only about 1.3% of San Saba County soils are rated without severe limits for a conventional drain field16. We could not confirm a private-well permit or general county driveway-entrance rule, so ask the relevant authority before buying.
Watch-outs
- A covered floodplain project may not be occupied until the county Local Administrator issues its certificate of compliance7.
- The published $20 floodplain application fee does not include additional costs the county may charge for review, inspection and approval9.
- Subdivision plats subject to county review require Commissioners Court approval on two readings at least one month apart6.
Sources
- San Saba County Floodplain Ordinance, quoted and re-checked
- Planning & Zoning - City of San Saba, Texas, quoted and re-checked
- City of San Saba Code Enforcement Permit Application, quoted and re-checked
- Notice of Ordinance Passed, Ordinance No. 2025-01, quoted and re-checked
- San Saba County On-Site Sewage Facility (2026 county census)
- San Saba County Subdivision Regulations, quoted and re-checked
- San Saba County Floodplain Ordinance, quoted and re-checked
- Texas law on county zoning and building authority
- San Saba County Floodplain Ordinance, Section 4.2-2 Fees, quoted and re-checked
- San Saba County Floodplain Ordinance, quoted and re-checked
- San Saba County Office of Emergency Management (Floodplain Administrator) (co.san-saba.tx.us)
- Floodplain Ordinance 04, quoted and re-checked
- San Saba County On-Site Sewage Facility, quoted and re-checked
- Getting a Permit for an OSSF - Such as a Septic System, quoted and re-checked
- Beneficial Re-Use of Graywater and Alternative Onsite Water, quoted and re-checked
- Share of soils USDA rates "not limited" for a conventional septic drain field (SSURGO). A strict rating: the median county is about 6% and a tenth of counties are 0%, so a low figure means most lots need a site evaluation or an engineered system, not that septic is impossible. Cite it only with that caveat: Bolthole Index county data
- San Saba County Floodplain Ordinance, quoted and re-checked
- San Saba County On-Site Sewage Facility (OSSF) Office (co.san-saba.tx.us)
- Section 4: Driveway Permits, Design, and Materials (Texas statewide rule), quoted and re-checked
- Agricultural, Timberland and Wildlife Management Use Special Appraisal, quoted and re-checked
- Texas Local Government Code Chapter 232, County Regulation of Subdivisions, quoted and re-checked
Written October 10, 2026 from the rules quoted below, each taken from an official source and re-checked by an independent reviewer. This is research, not legal advice: rules change, so confirm with the office before you buy or build.