Building permits, zoning and land rules in Randolph County, Illinois

Every new structure built or placed in unincorporated Randolph County needs a building permit regardless of size or cost, subject to the exemption for qualifying agricultural land and structures; the county also administers building permits in municipalities without their own zoning ordinance^1,2. The initial zoning-compliance certificate lasts 1 year and may be renewed in 1-year periods during a good-faith effort to complete the work².

A final zoning-compliance certificate follows an inspection confirming that the work matches the approved plan⁷. We could not confirm a complete building-code inspection schedule; ask Land Resource Management which inspection stages apply¹. Illinois has statewide baseline building-code requirements, while building permits and inspections for private construction are handled locally⁸.

Randolph County Land Resource Management issues county building permits and zoning-compliance certificates for unincorporated land and municipalities without their own zoning ordinance¹. Contact the office at 1 Taylor, Room 207, Chester, IL 62233-1954, or (618) 826-5000, Ext. 228⁶. Sparta and Red Bud administer their own building permits^9,10. The county Health Department handles septic permits and inspections, while Red Bud also requires a private-sewage permit signed by its Superintendent^3,4.

Submit a signed county application and site drawing showing setbacks; a single-family residence also needs house plans and septic approval⁶. The published zoning fee is $35 unless exempt or waived; the building fee is $2 per $1,000 of structure value, with a $5 minimum⁶. Starting construction before application submission or permit issuance adds a $25 late filing fee¹.

Randolph County zoning applies to unincorporated land and municipalities without their own zoning ordinance¹. Sparta and Red Bud set their own zoning inside city limits^11,12. County Health Department septic approval remains relevant, and Red Bud also requires its Superintendent’s private-sewage permit^3,4.

County Agricultural District lots require 30 acres, and Rural Single-Family Residential lots require 1 acre; soil-absorption sewage systems also require at least 1 acre². Setbacks vary by district, and maximum principal-structure height is 35 feet in the residential and commercial districts². Accessory structures cannot serve as dwellings, although a separate additional family dwelling may qualify on agricultural land under relationship rules^1,2. Agricultural exemptions depend on agricultural use, preserve district setbacks and do not cover residences occupied by people not engaged in agriculture².

The Randolph County Health Department administers private sewage disposal in Randolph County, issues septic permits and inspects system construction and installation³. A complete application and soil investigation are required before construction approval, and a septic permit must come before a county building permit^2,5. In county-zoned territory, a single-family residence must connect when an available-capacity public sewer is within 300 feet; otherwise, a compliant private sewer system must be installed and used².

Published septic-permit fees are $350 for a new system, $200 for a repair and $175 for a holding tank³. Only 12.6% of county soils are rated without severe limitations for conventional drain fields, so test wastewater feasibility early¹³. The Health Department also permits private wells, with a published $100 fee for construction, modification or abandonment³. Inside Red Bud, a private sewage system also requires a written permit signed by the City Superintendent before construction⁴.

We could not confirm a general rule allowing long-term RV occupancy on a private lot in unincorporated Randolph County; ask Land Resource Management about the proposed use, duration and sanitation⁶. County-administered Rural Single-Family Residential and Community Residential districts require special-use approval for travel-trailer parks; RV parks in the Rural Single-Family Residential district must also conform to state requirements². The park definition includes private or leased lots used for weekend homes, but temporary park occupancy does not authorize permanent residence in an individual RV outside a park².

We could not confirm a specific tiny-home occupancy rule or minimum dwelling floor area; new structures still need building permits, and accessory structures cannot serve as dwellings^1,2. Individual-lot manufactured homes need district-compliant lots and setbacks, a permanent foundation and special-use approval in the residential districts². Mobile-home parks need at least 2 acres, width and depth of at least 250 feet, 25-foot park-boundary setbacks and a maximum structure height of 35 feet².

1. Confirm whether county or municipal zoning and building permits control the parcel; the county Health Department handles septic permits, and Red Bud also requires its Superintendent’s private-sewage permit^1,3,4.
2. Confirm the district, allowed use, minimum lot area, setbacks and height².
3. Verify permanent street access and ask whether work in a county road right-of-way needs the County Highway Superintendent's driveway permit^2,7.
4. Obtain the septic permit before the county building permit².
5. Submit the signed building-permit application, site drawing and, for a single-family home, house plans².
6. Complete the county zoning and floodplain compliance inspection before final certification².

Start with jurisdiction and zoning district because municipal rules may replace county zoning and building permits, while the county Health Department handles septic permits and Red Bud also requires its Superintendent’s private-sewage permit^1,3,4. Under county zoning, the district determines permitted use, lot size, setbacks and height². County subdivision review requires road-entrance and sewage approvals plus an engineer-signed drainage report; final plats need County Board approval before recording⁷. An entrance crossing county road right-of-way may also require a driveway permit from the County Highway Superintendent⁷.

Make wastewater feasibility a contract contingency because only 12.6% of soils are rated without severe limitations for a conventional drain field¹³. Determine whether nearby public sewer requires connection and whether an existing well was permitted^2,3. Land Resource Management reviews construction and subdivision applications in flood-hazard locations, where flood-resistant design, drainage and protected utilities may be required⁷.