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

At a glance

Building permit

Required on unincorporated land; Brookville also issues a town building permit⁵⁶

Zoning

Administered by the county planning department outside Batesville; the City of Batesville zones its own land⁷²

Septic permit

Required for a residence not connecting to sanitary sewer⁴

RV living

County rule not confirmed; ask Area Planning before occupancy¹

Tiny home

County occupancy and minimum-size rules not confirmed¹

Owner-builder

No county permit exemption confirmed⁸

Private well

Ask Environmental Health whether the parcel requires a local permit⁹

Who to call

Contact details are copied from each office’s official page and were checked against it on October 12, 2026.

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

Franklin County’s Area Plan Commission & Building Department issues building permits and conducts inspections for construction on unincorporated land; Batesville is excluded from the department’s stated coverage.¹ Inside Brookville, the Clerk-Treasurer issues a town building permit upon advice of the Town Council, with county planning and zoning approval obtained first when required.⁶ Residential septic permits remain with the Franklin County Health Department.³

Indiana applies statewide building and residential codes, depending on the structure.¹⁰ State filing and local building permits are separate requirements.¹¹ A building used only for agriculture on its land, without retail trade, falls outside Indiana’s Class 1 state design-release category; that does not waive Franklin County building permits or zoning.¹²

Who issues building permits in Franklin County, Indiana?

The Franklin County Area Plan Commission & Building Department handles building permits, inspections and zoning on unincorporated land, and accepts petitions for variances, conditional uses, rezones and subdivisions.¹ Contact the department at 765-647-5731 or visit 1010 Franklin Avenue – Room 107, Brookville, IN 47012.¹

Brookville requires a town building-permit application to the Clerk-Treasurer, after any required county planning and zoning approval; interior renovations that do not affect sewer or water lines are exempt from the town building permit.⁶ Residential septic approval is a separate Health Department responsibility, and planning approval does not substitute for health-officer approval.³⁴

Does Franklin County, Indiana have zoning?

Unincorporated Franklin County has county-administered zoning; the county commissioners relinquished zoning jurisdiction to Batesville for property covered by the Batesville Development Code.² Brookville adopts the Franklin County Citizens Zoning and Subdivision Control Code and delegates administration and enforcement to county planning bodies, except for town-owned and town-maintained property.¹³ Residential septic permits remain with the Franklin County Health Department.³

We could not confirm countywide numeric rules for minimum dwelling size, minimum lot size, setbacks, lot coverage or building height. Ask the Area Plan Commission & Building Department for the current zoning designation and the standards that apply to the specific parcel before designing a house, cabin or accessory building.¹ If land will be divided outside a municipality, Indiana also requires the applicable subdivision plat and approval process before lots are sold.¹⁴

How do septic permits work in Franklin County?

The Franklin County Health Department administers residential septic permits through its health officer and authorized representatives.³ A Franklin County residence not connecting to sanitary sewer needs a written septic construction permit before the applicable construction, installation, repair or expansion work; projects increasing bedrooms or sewage flow can also trigger the requirement.⁴ The application needs bedroom information, a soils evaluation and written system plans; the county instruction sheet specifies a certified soil scientist’s evaluation and an installer’s drawing.⁴¹⁵

Residential septic permits cost $50, commercial septic permits $100 and holding-tank septic permits $50; credit cards carry a processing fee.¹⁶ The Health Department must issue or deny the permit in writing within 30 days after receiving the application and plans.⁴ After site evaluation, filling, cutting, scraping, compaction or soil removal requires a new evaluation and modified permit before system construction.⁴ Arrange final inspection with the health officer before covering subsurface work; installation must satisfy the health officer to fulfill permit requirements.⁴

Only about 0.2% of mapped Franklin County soils avoid a “very limited” rating for conventional drain fields, making septic feasibility an early buying decision.¹⁷ Where sanitary sewer is available within a reasonable distance, the property must connect instead.¹⁸

Can you live in an RV or tiny home in Franklin County?

We could not confirm Franklin County's rule for long-term RV occupancy, temporary camping or tiny-home occupancy on a private parcel. Ask the Area Plan Commission & Building Department about the parcel's zoning, the proposed length of occupancy, utility connections and whether the unit is treated as a dwelling before moving it onto the land.¹

Indiana's campground rules do not answer whether someone may live in an RV on an individually deeded lot; the reviewed rule concerns regulated campgrounds and expressly has a different scope.¹⁹ A holding tank is not a workaround for permanent residential sewage disposal because Indiana allows one only in approved temporary circumstances.²⁰ A tiny home intended as a dwelling still enters a county system that requires building permits and administers zoning outside Batesville.⁵⁷ We also could not confirm a local minimum dwelling size, so obtain a parcel-specific answer from the planning office before ordering a tiny home.¹

Building a home in Franklin County: what are the steps?

1. Identify whether the parcel is unincorporated, in Brookville or in Batesville; Brookville requires a town building permit after any required county planning approval.⁶ Ask the Area Plan Commission & Building Department for its zoning district and applicable approvals.⁵⁷
2. Ask whether sanitary sewer is available within a reasonable distance, because an available sewer must be used instead of a new onsite system.¹⁸
3. If the home will use septic, obtain the soils evaluation and submit the system plans to the Health Department and obtain the written septic construction permit before applicable work; preserve the evaluated site to avoid needing a new evaluation and modified permit.⁴¹⁵
4. Submit the required building and zoning materials to the county planning office, including any variance, conditional-use, rezone or subdivision petition the proposal needs.¹
5. Determine whether the project also needs Indiana design release; state filing does not replace local permits.¹¹
6. Obtain permission from the agency controlling the road before constructing a driveway in its right-of-way; INDOT handles connections to the state highway system through its electronic permit system.²¹
7. Schedule and complete the county building inspections associated with the permitted construction.⁵
8. Arrange septic final inspection with the Health Department before covering subsurface work.⁴

What should you check before buying land in Franklin County?

Start with buildability, not the listing description. Confirm zoning and permit coverage with the Area Plan Commission & Building Department, then determine whether the parcel must connect to an available sanitary sewer or can pursue an onsite system.⁷¹⁸ If septic is an option, ask Environmental Health whether the homesite can support it; Franklin County's mapped soils make conventional drain-field suitability a major due-diligence item.²²¹⁷ Ask Environmental Health separately whether a local private-well permit applies.⁹

Check legal road access and identify which agency controls the road, because connections within a state-highway right-of-way require permission from INDOT.²¹ Check flood maps before siting improvements: Indiana DNR has jurisdiction over most development in floodways, while flood-fringe development can still face local requirements even though the state does not issue a fringe permit.²³²⁴ For carrying costs, the county's effective property-tax rate is about 0.6%, with a median annual bill around $1,459.²⁵²⁶

Watch-outs

• Batesville is excluded from the Franklin County building department's stated construction coverage, so projects there should begin with the city.⁵
• A state agricultural design-release exemption does not establish an exemption from Franklin County permits or zoning.¹²
• Long-term RV occupancy, tiny-home standards, owner-builder exemptions and numeric setbacks remain unconfirmed; ask the Area Plan Commission & Building Department before purchase or placement.¹
• Mapped soils without severe conventional drain-field limits cover only about 0.2% of the county, so complete septic feasibility work before fixing a homesite.¹⁷
• A paid holding-tank permit does not authorize permanent off-grid sewage disposal; Indiana limits residential holding tanks to approved temporary uses.¹⁶²⁰

Sources

1. Franklin County Area Plan Commission & Building Department (franklincounty.in.gov)
2. Planning, Zoning & Building – Franklin County, quoted and re-checked
3. Franklin County: Enviromental Health, quoted and re-checked
4. Franklin County: Services and Fees, quoted and re-checked
5. Franklin County IN - Area Planning, Zoning & Building Department (2026 county census)
6. Town of Brookville: § 151.02 Building Permits (Franklin County), quoted and re-checked
7. Franklin County IN - Area Planning, Zoning & Building Department (2026 county census)
8. (2026 county census)
9. Recommended Standards For Private Water Wells (Indiana statewide rule), quoted and re-checked
10. DHS: Rules of the Indiana Fire Prevention and Building Safety Commission, quoted and re-checked
11. DHS: Plan Review Process, quoted and re-checked
12. DHS: Plan Review Process, quoted and re-checked
13. Town of Brookville: § 153.01 Adoption of Code and Amendments (Franklin County), quoted and re-checked
14. 2023 County Recorders Resource Library (Indiana statewide rule), quoted and re-checked
15. Franklin County Health Department (in.gov)
16. Franklin County: Services and Fees, quoted and re-checked
17. 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
18. Environmental Public Health: Onsite Sewage Systems Program, quoted and re-checked
19. Environmental Public Health: 410 IAC 6-71 Campgrounds (Indiana statewide rule), quoted and re-checked
20. 410 IAC 6-8.3 Residential Onsite Sewage Systems, quoted and re-checked
21. INDOT Driveway Permit Guide 2024 (Indiana statewide rule), quoted and re-checked
22. Franklin County: Enviromental Health (2026 county census)
23. Water: Community Assistance & Information (Indiana statewide rule), quoted and re-checked
24. Water: Community Assistance & Information (Indiana statewide rule), quoted and re-checked
25. Effective property tax rate: Bolthole Index county data
26. Median property tax bill: Bolthole Index county data

Written October 12, 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.