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

Unincorporated Shelby County requires building permits for new dwellings and commercial structures, remodels and additions, decks, pools, and accessory structures over 200 square feet¹. Agricultural structures in agricultural zoning districts are exempt from building permits, but still need an Improvement Location Permit plus electrical and plumbing permits when applicable⁷. A rightful owner-occupant building a single-family dwelling may act as general contractor by filing a homeowner affidavit⁵. New buildings in the county inspection jurisdiction must comply with the Indiana State Building Code^5,8. Building inspections must be requested 24 hours ahead; the published sequence covers footing, foundation, framing and final inspections, although not every project necessarily follows that same sequence². Shelbyville issues its own building permits, and Edinburgh, which lies mainly in Johnson County and reaches into Shelby County, also issues its own building permits^9,10. The Shelby County Health Department handles systems not connected to a regulated sewage facility; Shelbyville also requires a private sewage-disposal permit from its Board of Public Works and Safety where public sewer is unavailable^11,12.

The Shelby County Building Inspector serves unincorporated Shelby County and the Town of Fairland from 25 W. Polk St. in Shelbyville; call 317-392-6480⁵. Shelby County generally processes electronic building permits in one business day, but issuance waits for Site Plan Committee approval³. Shelby County publishes separate Plan Commission and Building Inspector fees; the listed new-dwelling charges are $220 for building, $165 for plumbing and $165 for electrical permits, while card payments carry a 4% transaction fee¹³. The Shelby County Plan Commission handles site-plan review, permitting, inspections and floodplain administration at 25 W. Polk Street, Room 201, Shelbyville; call 317-392-6338¹⁴. The Shelby County Health Department handles residential onsite-sewage permits and environmental health review; call (317) 392-6470¹⁵.

Shelby County's Unified Development Ordinance and Official Zoning Map govern the county planning jurisdiction, while cities and towns administer their own planning jurisdictions^4,16. Shelbyville sets its own zoning, as does Edinburgh, the town mainly in Johnson County that reaches into Shelby County^17,18. The county Health Department remains the contact for onsite sewage systems not connected to a regulated facility, with an additional city private sewage-disposal permit in Shelbyville^11,12. Residential Estate requires a 2-acre lot, a 1,600-square-foot dwelling, 50-foot front and 30-foot primary-structure side and rear setbacks, and no more than 30% lot coverage⁴. Village Residential instead has a 6,500-square-foot lot minimum, 900-square-foot dwelling minimum, 25-foot front, 8-foot primary side and 20-foot rear setbacks, and 65% maximum lot coverage⁴. Accessory-structure setbacks also vary by district, so ask the Plan Commission to identify the parcel's jurisdiction and zoning before siting a building^14,19. In both RE and VR, primary structures have a 35-foot height limit and accessory structures a 20-foot limit⁴.

The Shelby County Health Department issues permits for residential and commercial sewage-disposal systems that are not connected to a regulated sewage facility¹¹. A new home needs a septic permit unless it uses sewer and water from the Waldron Conservancy District³. County-regulated septic work must be inspected and signed off, and septic approval is part of the new-home occupancy process¹¹. Only 0.3% of Shelby County soils are rated without severe limitations for a conventional drain field, so make soil evaluation and septic feasibility an early purchase contingency⁶. Public sewer is not required in Residential Estate, but a private well is allowed there only when public water is unavailable; Village Residential requires public sewer and water⁴. We could not confirm a separate private-well permit requirement; ask the Health Department before relying on a well¹⁵.

An RV may not be used as living quarters in unincorporated Shelby County's zoning jurisdiction⁴. Manufactured and mobile homes are permitted uses in the Manufactured Home Park district, where each unit needs at least 700 square feet, lot coverage is limited to 65%, and public sewer and water are required⁴. Shelby County requires a Board of Zoning Appeals variance for a tiny home classified as a detached secondary dwelling or an attached dwelling unit; the Board typically grants temporary occupancy in hardship cases¹⁹. The county FAQ does not define a general tiny-home category¹⁹. For accessory dwellings used as short-term rentals, the UDO requires legal establishment by the Board of Zoning Appeals and compliance with residential building codes⁴. Ask the Plan Commission to classify the exact structure and proposed use before buying or building¹⁴.

1. Confirm the planning jurisdiction, zoning district and buildable-lot status; creating a new lot requires the platting process³.
2. Arrange soil samples and obtain a septic permit unless the Waldron Conservancy District exception applies³.
3. Submit the site plan by noon Tuesday for Thursday review; permits wait for Site Plan Committee approval³.
4. Obtain a Shelby County Highway Department access permit for a county-road entrance; the county access fee is $20³. A state-highway entrance also needs INDOT permission^3,20.
5. Obtain the required improvement-location, building, electrical and plumbing permits, and file a homeowner affidavit if the rightful owner-occupant will serve as general contractor^3,5.
6. Schedule inspections 24 hours ahead and do not pour foundation concrete before inspection².
7. Complete the required inspections, including septic inspection, and receive a temporary or final certificate of occupancy before moving in³.

Before buying a small parcel, ask the Shelby County Plan Commission to verify building-lot eligibility: the usual minimum is 2 acres, but lots established before 2008 may be grandfathered if the home meets other zoning requirements^14,19. Creating a new lot requires platting; a sale or proposed split does not establish building-lot eligibility³. Check septic feasibility before closing because only 0.3% of county soils lack severe limitations for a conventional drain field⁶. Construction or grading in a designated Flood Hazard Area needs a county floodplain permit, and floodway development also needs Indiana DNR Division of Water approval¹⁶. We could not confirm temporary-camping rules, private-well permit requirements or off-grid sanitation options; ask the Plan Commission about camping and floodplain review, and the Health Department about wells and sanitation^14,15.