Randolph County, Indiana requires a building permit for construction, alteration, demolition or repair beyond maintenance, and an Improvement Location Permit comes first12. Countywide zoning applies, while the Randolph County Health Department permits, inspects and gives final approval to residential on-site septic systems345.
At a glance
- Building permit
- Required for construction, alteration, demolition or repair beyond maintenance1
- Zoning
- Countywide; standards vary by district and municipality36
- Septic permit
- Required before a new or repaired residential system is installed7
- Owner-builder
- A homeowner may work on their own home without contractor registration, but still needs required approvals8
- Minimum home size
- Generally 950 square feet; multistory homes in agricultural districts may have a 600-square-foot ground floor9
- Agricultural lot size
- At least 2 buildable acres for a new home or mobile home in A-L and A-I districts10
- RV living
- Countywide private-parcel occupancy was not confirmed; ask Area Planning & Zoning11
- Manufactured home
- An Improvement Location Permit is required, and some sites also need a special exception12
Who to call
Building permits
Randolph County Building Commission
Building permits, contractor registration and construction inspections in Randolph County
325 S Oak Street, Suite #204 Winchester, IN 47394
Zoning
Randolph County Area Planning & Zoning
Planning and zoning services for the county and Improvement Location Permits
Septic permits
Randolph County Health Department
Residential on-site septic permits, plan review, inspection and final approval
325 South Oak Street, Suite #202 Winchester, IN 47394
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 Randolph 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.
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Do you need a building permit in Randolph County, Indiana?
Yes. Randolph County requires a building permit for construction, alteration, demolition or repair beyond maintenance, and an Improvement Location Permit must be obtained first113. Commercial structures also require a state Construction Design Release before the local building permit1. The Building Commission inspects covered construction and remodeling while work is underway1415. A homeowner may perform work on their own home without contractor registration and may be listed as general contractor, but that does not remove the building-permit, zoning, inspection or other approval requirements816. Randolph County enforces applicable building codes, though the county material does not identify every adopted edition17.
Who issues Randolph County building and zoning permits?
The Randolph County Building Commission issues building permits, registers contractors and conducts construction and remodeling inspections18. Call the Building Commission at (765) 584-0275 or visit its Winchester office; its posted weekday hours are 8 AM to 4 PM18. Randolph County Area Planning & Zoning administers county planning and zoning and issues the Improvement Location Permit required before the building permit192. Call Area Planning & Zoning at (765) 584-8610 before finalizing a site plan19. Improvement Location Permit fees vary with the proposed improvement and zoning district, building-permit fees follow the county fee schedule, and the septic permit has a separate fee20.
Does Randolph County have zoning?
Yes. Randolph County administers countywide zoning through Area Planning & Zoning, with published agricultural, residential, commercial, industrial, floodway, floodway-fringe and planned-development districts321. Setbacks vary by location and district22. A single-family home generally needs at least 950 square feet of living area; in Agricultural Limited and Agricultural Intensive districts, a multistory home may have a 600-square-foot ground floor if total finished living area is at least 950 square feet9. A new home or mobile home in either agricultural district needs at least 2 buildable acres, excluding rights-of-way, easements and usually floodplain; other lot sizes apply inside cities and towns according to district2310. A manufactured home needs an Improvement Location Permit, and one placed on residentially zoned land outside a licensed mobile-home park also needs a Board of Zoning Appeals special exception2412.
How do septic permits work in Randolph County?
The Randolph County Health Department handles residential on-site septic permitting, review, inspection and final approval425. A permit is required before work begins on a new or repaired system, and the application materials include a plat, soil analysis, site evaluation and installation plan7. The approved septic permit costs $85 when picked up, and the property owner remains responsible for obtaining inspection and final Health Department approval75. Countywide soil data rates 0% of mapped soils as free of severe limitations for a conventional drain field, so make septic feasibility a purchase contingency26. Inside a city or town, a sewer-tap permit or municipal approval may be required instead27. Indiana sanitation rules generally require a compliant septic tank and soil-absorption system where a dwelling cannot connect to sewer28.
Can you live in an RV or tiny home in Randolph County?
We could not confirm a Randolph County rule that generally allows or prohibits living in an RV on an individually deeded private parcel. The county regulates an RV installed in a floodplain for more than 180 days, but that provision does not answer occupancy elsewhere11. Ask Area Planning & Zoning how the parcel's district treats temporary occupancy before moving an RV onto the land19. A tiny home used as a residence must meet the district floor-area rule. In the Agricultural Limited and Agricultural Intensive districts, a one-story residence needs at least 950 square feet of ground-floor living area, and a residence of two or more stories needs at least 600 square feet on the ground floor and 950 square feet in total2930. An Improvement Location Permit is generally required first, and the building-permit process, setbacks, septic, and floodplain rules still apply29. We could not confirm how other districts treat tiny homes, so ask Area Planning & Zoning19. A manufactured home follows its own placement rules, including an Improvement Location Permit and, on residentially zoned land outside a licensed mobile-home park, a special exception12.
Building a home in Randolph County: what are the steps?
- Ask Area Planning & Zoning to confirm the parcel's district, allowed use, lot size and setbacks; its review also checks floodplain status, easements, right-of-way and county-drain clearance3123.
- Obtain the Improvement Location Permit before applying for the building permit2.
- Submit the building-permit materials to the Building Commission and list a registered contractor or the homeowner as general contractor16.
- Obtain a Floodplain Development Permit before development in a special flood-hazard area32.
What should you check before buying land in Randolph County?
Confirm the zoning district, allowed use, minimum buildable acreage, dwelling size, setbacks and any special-exception path before relying on a listing description6109. If the purchase depends on a parcel split, ask Area Planning & Zoning about the subdivision process; Randolph County regulates parcel splits, subdivisions and re-subdivisions, including site suitability and infrastructure review33. Make the contract contingent on septic feasibility because 0% of mapped soils are rated without severe conventional-drain-field limitations26. We could not confirm a Randolph County private-well permit requirement, so ask the Health Department before drilling3435. Development in a special flood-hazard area needs a Floodplain Development Permit before work32. A driveway on private property needs no county driveway permit, but access to a state highway requires INDOT permission3637.
Watch-outs
- The Improvement Location Permit comes before the Randolph County building permit, and its fee varies by the improvement and zoning district220.
- Agricultural Limited and Agricultural Intensive districts require at least 2 buildable acres for a new home or mobile home10.
- A manufactured home on residentially zoned land outside a licensed mobile-home park needs a special exception as well as an Improvement Location Permit12.
- Development in a special flood-hazard area requires a Floodplain Development Permit before work begins32.
- Countywide soil data rates 0% of mapped soils as free of severe limits for a conventional septic drain field, so verify a workable system before buying26.
Sources
- Randolph County: Home Owner Recommendations, quoted and re-checked
- Randolph County: Area Planning Zoning, quoted and re-checked
- Randolph County: Area Planning Zoning, quoted and re-checked
- Randolph County: Septic System Permit, quoted and re-checked
- Randolph County: Septic System Permit, quoted and re-checked
- Randolph County: Area Planning Zoning, quoted and re-checked
- Randolph County: Septic System Permit, quoted and re-checked
- Randolph County: Area Planning Zoning, quoted and re-checked
- Randolph County: Area Planning Zoning, quoted and re-checked
- Randolph County: Area Planning Zoning, quoted and re-checked
- Randolph County Unified Zoning Ordinance 2026, quoted and re-checked
- Randolph County: Area Planning Zoning, quoted and re-checked
- Randolph County: Home Owner Recommendations (2026 county census)
- Randolph County: Building Commission, quoted and re-checked
- Randolph County: Building Commission, quoted and re-checked
- Randolph County: Home Owner Recommendations, quoted and re-checked
- Randolph County: Building Commission, quoted and re-checked
- Randolph County Building Commission (in.gov)
- Randolph County Area Planning & Zoning (in.gov)
- Randolph County: Frequently Asked Questions, quoted and re-checked
- Randolph County: Frequently Asked Questions, quoted and re-checked
- Randolph County: Area Planning Zoning, quoted and re-checked
- Randolph County: Area Planning Zoning, quoted and re-checked
- Randolph County: Obtain Improvement Location Permit, quoted and re-checked
- Randolph County: Septic System Permit (2026 county census)
- 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
- Randolph County: Obtain Improvement Location Permit, quoted and re-checked
- 410 IAC 6-8.3 Residential On-Site Sewage Systems (Indiana statewide rule), quoted and re-checked
- Randolph County Unified Zoning Ordinance, March 2026, quoted and re-checked
- Randolph County Unified Zoning Ordinance, March 2026, quoted and re-checked
- Randolph County: Apply Building Permit, quoted and re-checked
- Randolph County Unified Zoning Ordinance, March 2026, quoted and re-checked
- Unified Subdivision Control Ordinance of Randolph County, Indiana, quoted and re-checked
- Recommended Standards For Private Water Wells (Indiana statewide rule), quoted and re-checked
- Randolph County Health Department (in.gov)
- Randolph County: Area Planning Zoning, quoted and re-checked
- INDOT Driveway Permit Guide 2024 (Indiana statewide rule), 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.