Indiana’s log cabin rule, found at Indiana Code 36-7-8-3(d), lets an individual build a private home for their own occupancy in an unincorporated area of a county without complying with county building ordinances.1Indiana General Assembly. Indiana Code 36-7-8-3 – Establishment of Building, Heating Standards No building permit. No rough-in or final inspections. No certificate of occupancy. The one requirement the statute preserves is that onsite sewage systems must still comply with state law. Everything else — framing, wiring, plumbing, HVAC, insulation — is left to the builder’s judgment, and so is every consequence when something goes wrong.
Who Qualifies for the Exemption
The statute is narrow on eligibility. All three of these must be true:
- The builder is an individual. A natural person, not a corporation, LLC, or partnership.
- The home is for the builder’s own occupancy. A rental, a guest house, or a home built for immediate sale doesn’t qualify.
- The property is in an unincorporated area of the county. Homes inside city or town limits fall under municipal codes and aren’t covered.
These conditions come directly from the language of IC 36-7-8-3, which authorizes county building standards for unincorporated areas and then exempts “private homes that are built by individuals and used for their own occupancy.”1Indiana General Assembly. Indiana Code 36-7-8-3 – Establishment of Building, Heating Standards
Whether a parcel is unincorporated isn’t always obvious. County GIS mapping or the county planning office can confirm it. Annexation matters here: if your land was recently pulled into a municipality, the exemption no longer applies, even if it did when you bought.
What the Rule Removes
Because the exemption covers county building ordinances broadly, it strips away the entire local enforcement layer for the home. County standards for structural work, roofing, electrical, plumbing, HVAC, and insulation don’t apply. No inspector will check foundation depth, wire gauge, pipe sizing, or load-bearing walls. Design and construction decisions are entirely the owner’s.
That autonomy translates to money saved on permit fees, plan review charges, and licensed subcontractor markups, and to time saved waiting on inspections. Actual savings depend on the county and the size of the build.
One nuance worth understanding: Indiana’s Fire Prevention and Building Safety Commission sets statewide standards that county ordinances are supposed to meet as a minimum. When the county exemption removes the local enforcement mechanism, no agency is actively inspecting the home, even though state-level standards exist on paper.
What Still Applies
Onsite sewage is the explicit carve-out inside the carve-out. You cannot install a septic system without going through the county health department, which typically requires a septic permit before construction begins and a soil evaluation before approving the system design.2Greene County, Indiana. Septic Systems The log cabin rule offers no protection here.
Private wells are governed differently. Federal drinking water rules don’t reach private wells the way they reach public systems, but the CDC recommends siting a well at least 50 feet from septic tanks and leach fields, at least 100 feet from petroleum or fertilizer storage, and testing water annually.3Centers for Disease Control and Prevention. Well Water Safety These are guidelines rather than enforceable requirements, but ignoring them creates real health risks.
Federal environmental rules also apply regardless of the state exemption. Cesspools are prohibited, and the EPA may treat certain septic systems as Class V injection wells under the Underground Injection Control program.4US EPA. Septic Systems Reports, Regulations, Guidance, and Manuals
How to File
The statute itself doesn’t prescribe a filing procedure, so the process varies by county. Most counties with active building departments ask the owner-builder to submit a sworn affidavit, often called a log cabin affidavit or owner-builder affidavit. The affidavit typically declares that the home is being built by the individual for their own occupancy and includes a legal description of the property from your deed, a statement of intended use, and an acknowledgment that no inspections will occur.
Plan on signing in front of a notary. Some counties also ask for proof of ownership or residency, such as a recorded deed or a driver’s license matching the property address. Filing fees are modest; recording fees for affidavits in Indiana counties typically start around $25.5Steuben County, Indiana. Fee Schedule
Once filed, the county records the property’s exempt status. No certificate of occupancy will be issued at the end, because no inspections happened. Keep your filed copies. You’ll want them for the assessor’s office, and they become important documents if you ever sell.
Financing and Insurance Before You Build
Most mortgage lenders require a certificate of occupancy or evidence of code compliance before funding a loan. Owner-builders using the log cabin rule typically can’t provide either, so conventional mortgage financing is rarely available. Self-build construction loans, hard money loans, or paying cash are the realistic paths. If financing is part of your plan, confirm with the lender before breaking ground that they’ll fund a home built under this exemption.
Homeowners insurance runs into a related problem. Standard policies cover repairs to restore the home to its original condition after a covered loss. They generally don’t cover the added cost of bringing a non-code-compliant structure up to current standards during those repairs. An optional building code coverage endorsement can help, but only after a covered event, not for voluntary upgrades. Some insurers may decline to write a policy at all on a home with no inspection history. Shop for coverage before construction so you know what an insurer will and won’t require.
Selling the Home Later
A common misconception is that the statute requires you to live in the home for at least one year before selling. It doesn’t. IC 36-7-8-3(d) requires only that the home be built by an individual and used for their own occupancy.1Indiana General Assembly. Indiana Code 36-7-8-3 – Establishment of Building, Heating Standards There is no minimum occupancy period in state law, though individual counties can attach local conditions through their administrative process.
Selling does trigger Indiana’s residential real estate sales disclosure requirements under IC 32-21-5. The standard seller disclosure form asks whether substantial additions or alterations have been made without a required building permit,6State of Indiana. Sellers Residential Real Estate Sales Disclosure and it asks about code violations and the condition of electrical, plumbing, heating, and structural systems.7Indiana General Assembly. Article 9 Residential Real Estate Sales Disclosure A permit-exempt home was built legally, but buyers and their lenders will still want to understand what “no permits” means for the home’s condition.
Practically, homes without inspection histories are harder to sell. Buyers often require independent inspections at your expense, lenders may refuse to finance, and appraisers may struggle to value a home with no official construction records. Being direct about the exempt status and keeping documentation of materials, construction methods, and any professional assessments you paid for voluntarily makes the process smoother.
Risks the Builder Now Carries Alone
The rule transfers liability from the county to the builder. Mistakes in the foundation, the wiring, or the framing are yours to find and yours to fix. There is no inspection checkpoint catching a problem before the drywall goes up.
A few risks that catch first-time owner-builders off guard:
- Structural problems can take years to show. Foundation settling, inadequate load paths, and improper roof framing may not appear until well after the build. Repair costs at that stage often exceed what code-compliant construction would have cost up front.
- Electrical errors are dangerous. Incorrect wire sizing, missing ground fault protection near water, and overloaded circuits create fire and shock hazards. Even without a required inspection, hiring a licensed electrician for a consultation is worthwhile.
- The absence of a certificate of occupancy reaches beyond resale. Insurance claims, property tax disputes, and refinancing can stall when no document confirms the home meets any recognized standard.
Owner-builders who use the exemption most successfully tend to follow code standards voluntarily and simply skip the paperwork of proving compliance. Treating the rule as a shortcut around the standards themselves, rather than around the administrative process, is where the trouble starts.