Building permits, zoning and land rules in Gibson County, Indiana

At a glance

Building permit

Flood-zone property work is permitted locally; the general residential permit rule is unconfirmed¹

Zoning

No county zoning ordinance in unincorporated areas; incorporated Owensville has its own controls²³

Septic permits

Gibson County Health Department; $100 for a new system, $75 for a repair⁵⁶

Septic soils

Only 17.4% of county soils are free of severe limits for a conventional drain field⁷

RV / tiny home living

An RV kept over 180 days is development under the county stormwater ordinance; residential occupancy remains unconfirmed⁸

Wells

No statewide well permit, but some Indiana local health departments require one; confirm with the Gibson County Health Department⁹

Floodplain development

Most floodway work needs an Indiana DNR permit; the county Floodplain Administrator is the local contact¹⁰

Who to call

Contact details are copied from each office’s official page and were checked against it on September 29, 2026.

Do you need a building permit in Gibson County, Indiana?

Gibson County offers applications for permits involving flood-zone properties and provides permitting guidance for work in flood-zone areas¹. The county source does not identify which residential projects need that permit, and we could not confirm a general county residential building-permit rule for land outside those areas¹. Indiana law leaves local jurisdictions authority to require building permits, plan review and inspections through their own administrative rules¹¹. Indiana's statewide Residential Code and Building Code still set construction standards even when the local permit process is unclear¹². Before breaking ground, ask the Gibson County Commissioners about the current permit and inspection process, and contact the Floodplain Administrator if any part of the building site lies in a mapped flood area¹³¹.

Who handles permits and inspections in Gibson County?

Gibson County's general residential building-permit and inspection contacts could not be confirmed, so start with the County Commissioners before planning construction¹⁴. The Gibson County Health Department specifies septic-system size and type, reviews the installer's plot plan, issues the septic construction permit and performs the installation inspection¹⁵⁴. For a flood-zone parcel, the county Floodplain Administrator provides permit applications and guidance, while the Indiana DNR Division of Water has jurisdiction over most floodway development¹³¹¹⁰. The Gibson County Highway Department is the contact for a proposed driveway or culvert entrance on a county-maintained road¹⁶. A connection to an INDOT-controlled highway requires an INDOT driveway permit; published fees are $55 for a private driveway, $150 for a minor commercial approach and $600 for a major commercial or road approach¹⁷.

Does Gibson County have zoning?

Unincorporated Gibson County has no county zoning ordinance; the Board of Commissioners repealed the comprehensive land-use planning and zoning ordinance under Ordinance No. 2021-01². The county therefore has no zoning-based lot-coverage rule or building-height limit for unincorporated parcels¹⁸¹⁹. Incorporated towns can still impose their own rules: Owensville regulates mobile-home placement within town limits³. In Owensville, parking a mobile home for more than 10 days in a 30-day period requires a Board of Trustees permit unless it is in an approved mobile-home park; the ordinance also requires a 10,000-square-foot lot, 15-foot separation and Town water and sewer connections³. We could not confirm the current zoning rules for the county's other incorporated municipalities, so verify the parcel boundary and contact the relevant town before relying on the county repeal.

How do septic permits work in Gibson County?

Every septic system in Gibson County goes through the Gibson County Health Department, which specifies the system's size and type before a permit is issued¹⁵⁴. A new residential septic permit costs $100 and a repair permit costs $75; the application must be returned with the fee, and a certified soil scientist has to provide a soil profile analysis before the Health Department will size the system⁶. The installer then draws up a plot plan, which the Health Department approves or sends back for changes, and issues the construction permit only after that²⁰. You must call the Health Department when the system is being installed so it can inspect it before it's covered²¹¹⁵. Soils are a real constraint here: only 17.4% of Gibson County's soils are free of severe limits for a conventional drain field, so budget for an engineered or alternative system on many parcels⁷. A privy is allowed only if you can show a water-carriage sewage system cannot be used, and only if you can assure no public or private water supply will be installed²²; statewide, a temporary holding tank used as your only disposal method is limited to one year unless you document that it's working properly and Indiana's Department of Health extends it²³.

Can you live in an RV or tiny home on your land in Gibson County?

Unincorporated Gibson County has no county zoning ordinance, but that does not establish a right to occupy an RV or tiny home as a residence². Keeping an RV on a site in unincorporated Gibson County for more than 180 days counts as development under the county stormwater ordinance, although that rule does not itself allow or prohibit residential occupancy⁸. Indiana's campground rules apply to qualifying campgrounds, not automatically to a single RV on an individually deeded parcel; a regulated campsite may hold no more than one RV or vacation mobile home at a time²⁴. Sanitation rules still apply: a temporary holding tank used as the sole disposal method is limited to one year unless the state extends it, and a privy is allowed only when a water-carriage system cannot be used²³²². Inside Owensville, separate town rules govern mobile-home placement and require a permit beyond 10 days in a 30-day period outside an approved park³. Ask the Commissioners and Health Department about the exact parcel and proposed occupancy before moving in.

Building a home in Gibson County: the steps, in order

1. Confirm whether the parcel is unincorporated or inside a town, because the county zoning repeal does not remove municipal rules; Owensville has its own land-use controls²³.
2. Ask the Gibson County Commissioners to confirm the current residential permit and inspection process, which we could not confirm for general construction¹⁴.
3. Contact the Floodplain Administrator early if the site is in a mapped flood area, because Gibson County offers permits for flood-zone property work and Indiana DNR regulates most floodway development¹³¹¹⁰.
4. Hire a certified soil scientist, then apply to the Health Department; a new septic permit costs $100 and a repair permit costs $75¹⁵⁶.
5. For access, contact the Highway Department about a county road or INDOT about a state highway¹⁶²⁵.
6. Have the septic installer call the Health Department during installation for the required inspection²¹.
7. Keep any qualifying agricultural structure strictly within the state's agricultural-purpose conditions²⁶.

What to check before you buy land in Gibson County

Check soils before you check anything else: only 17.4% of Gibson County land is free of severe limits for a conventional septic drain field, so get a soil scientist's opinion before you count on a standard system⁷. The terrain itself is easy: 94.9% of the county sits at 15% slope or less, and only 15.7% is wooded, so grading and clearing are rarely the obstacle²⁷²⁸. For water, Indiana's Department of Health notes that several local health departments require a permit before you drill a residential well or install a well pump, though the statewide source doesn't say which ones, so ask the Gibson County Health Department directly before you drill⁹. If any part of the parcel is in a mapped floodway, plan on a DNR permit for most development there, and no state permit but possible local rules in the fringe area¹⁰²⁹. Splitting land into lots outside a town requires a recorded, surveyor-certified plat approved by the Board of County Commissioners before any lot can be sold³⁰. Property taxes here run an effective rate of 0.7%, with a median bill of $1,244 a year³¹³², and typical homes value around $214,579³³.

Watch-outs

• Gibson County offers flood-zone property permits, but the source does not define every covered residential project and the general county building-permit rule remains unconfirmed¹.
• The county zoning repeal applies to unincorporated land, not municipal rules; Owensville separately regulates mobile-home placement, lot size, separation, and utility connections²³.
• Keeping an RV on an unincorporated site for more than 180 days is stormwater-regulated development, but the ordinance does not answer whether residential RV occupancy is allowed⁸.

Sources

1. Floodplain Administration - Gibson County Indiana, quoted and re-checked
2. Gibson County, Indiana - Ordinances (2026 county census)
3. Owensville Codification, quoted and re-checked
4. Gibson County: Septic Information, quoted and re-checked
5. Gibson County: Septic Information (2026 county census)
6. Gibson County: Septic Information, quoted and re-checked
7. Share of soils without severe limits for a conventional septic drain field (USDA SSURGO): Bolthole Index county data
8. Gibson County Ordinance No. 2022-02: Stormwater Management and Technical Standards, quoted and re-checked
9. Recommended Standards For Private Water Wells (Indiana statewide rule), quoted and re-checked
10. Water: Community Assistance & Information (Indiana statewide rule), quoted and re-checked
11. DHS: Boards and Commissions (Indiana statewide rule), quoted and re-checked
12. Rules of the Indiana Fire Prevention and Building Safety Commission (Indiana statewide rule), quoted and re-checked
13. Floodplain Administrator, Emergency Management Agency of Gibson County (gibsoncounty-in.gov)
14. Floodplain Administration - Gibson County Indiana (2026 county census)
15. Gibson County Health Department (in.gov)
16. Gibson County Highway Department (gibsoncounty-in.gov)
17. INDOT: Doing Business with INDOT: Permits, quoted and re-checked
18. Gibson County Board of Commissioners Minutes, February 15, 2022, quoted and re-checked
19. Gibson County Board of Commissioners Minutes, February 15, 2022, quoted and re-checked
20. Gibson County: Septic Information, quoted and re-checked
21. Gibson County: Septic Information, quoted and re-checked
22. Amended Ordinance Regulating Private Sewer Systems Located in Gibson County, Indiana, quoted and re-checked
23. 410 IAC 6-8.3 Residential On-Site Sewage Systems (Indiana statewide rule), quoted and re-checked
24. Environmental Public Health: 410 IAC 6-7.1 Campgrounds, quoted and re-checked
25. INDOT Driveway Permit Guide 2024 (Indiana statewide rule), quoted and re-checked
26. Class 1 Structure Agricultural Purpose Exemption, quoted and re-checked
27. Share of land at 15% slope or less: Bolthole Index county data
28. Wooded share of land: Bolthole Index county data
29. Water: Community Assistance & Information (Indiana statewide rule), quoted and re-checked
30. 2023 County Recorders Resource Library (Indiana statewide rule), quoted and re-checked
31. Effective property tax rate: Bolthole Index county data
32. Median property tax bill: Bolthole Index county data
33. Typical home value (Zillow): Bolthole Index county data

Written September 29, 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.