Bolthole Index county-legal census · checked 2026-11-13
19 of Illinois's 102 counties — 19% — require no residential building permit and have no county-wide zoning in their unincorporated areas. That is the 9th-largest count of any state. The strongest of them on the Bolthole Index is Brown County (83/100). Every entry below cites the county’s own official source.
Rules change, and cities inside these counties set their own — treat this as a verified starting point, not legal advice. All 515 counties nationwide → Illinois: no building codes → Illinois: no zoning → Illinois: owner-builder → Illinois: rv living → Illinois: tiny homes → Illinois: no minimum home size → Full Illinois profile →
From the Illinois guide
Illinois has 20 counties that do not require a residential building permit in unincorporated areas, including Brown County, Schuyler County, Crawford County, Clark County, Clay County, Wayne County, Greene County, Effingham County.
Illinois has 20 counties that do not require a residential building permit in unincorporated areas, including Brown County, Schuyler County, Crawford County, Clark County, Clay County, Wayne County, Greene County, Effingham County1. Another 23 counties require a building permit only in some cases, while 59 require a residential building permit6. Use the Illinois no-building-codes county list to compare counties by their building-permit answers1.
Illinois's statewide building-code baseline took effect in 2025, including requirements for jurisdictions without adopted local codes, so the absence of a county building permit does not remove the applicable state code requirements10. The State does not issue building permits for privately funded construction; any required building permit comes through the local government11. CDB's Building Codes and Regulations office provides local code directories; ask the local code official which requirements apply to the proposed home10.
Illinois has 23 counties without countywide zoning, including Brown County, Schuyler County, Crawford County, Clark County, Clay County, Wayne County, Greene County, Richland County.
Illinois has 23 counties without countywide zoning, including Brown County, Schuyler County, Crawford County, Clark County, Clay County, Wayne County, Greene County, Richland County2. Countywide zoning is present in 65 counties, and we could not confirm the zoning answer in 14 counties6. Compare the Illinois counties with no zoning before choosing a parcel2.
Illinois has 19 counties combining no residential building permit with no countywide zoning; the combined county list helps narrow that search7. Where county zoning applies, setback distances depend on the applicable district or local ordinance, and agricultural buildings may still have to meet setback lines12. Even in a county without zoning, a new private sewage disposal system needs plan approval before construction3.
8 official pages, each quoted and re-checked · written October 10, 2026
From the Illinois guide, written from the cited official sources and re-checked by an independent reviewer. This is research, not legal advice: confirm with the office before you buy or build.
19 of 102 Illinois counties · sorted by Index score
Brown County publishes building-code and permit rules only for the City of Mt. Sterling; no county building code or building-permit program exists for unincorporated areas, cons…
Brown County - Code of Ordinances (Permits, Forms, and Zoning) ↗Schuyler County lists no building/planning department and no county building-inspection program; as a non-home-rule rural Illinois county it has no countywide residential buildi…
Schuyler County IL - Departments ↗Crawford County government lists no countywide building department or building-permit program; under Illinois practice, non-home-rule rural counties generally do not require bui…
Crawford County, Illinois - County Government ↗Illinois does not mandate a residential building code for non-home-rule rural counties, and Wayne County's official site lists no building/inspection department, so county build…
Wayne County, Illinois (official) ↗The county's official departments and permits pages list no building department or building permit; only highway-related permits (truck, utility, culvert) are issued, consistent…
Clark County, IL — Permits ↗Clay County is a township-form, non-home-rule county whose listed offices include no building, permit, or code-enforcement department; Illinois imposes no statewide residential …
Clay County, Illinois - Official Website ↗Construction in Marion County's non-incorporated areas. The cited County statement is limited to non-incorporated areas.
Marion County Full Board Meeting Minutes, March 25, 2025 ↗Greene County lists no building, zoning, or planning department; as a rural non-home-rule Illinois county it does not administer countywide residential building permits (permits…
Greene County IL Government ↗Building permits for construction in unincorporated areas of Effingham County, Illinois. Zoning may exist in incorporated areas and within the one-and-one-half-mile radius of in…
Effingham County Highway Department — No Zoning ↗Illinois does not mandate a residential building code for non-home-rule counties; Hancock County's official site lists no building/permit department, consistent with rural IL co…
Hancock County, Illinois — official county website ↗White County's official departments list includes no building, zoning, or permit office, consistent with Illinois rural non-home-rule counties that do not administer a residenti…
White County, IL - Departments ↗Hamilton County's official department list includes no building/zoning or permit office; as a non-home-rule Illinois county there is no statewide residential building-code manda…
Hamilton County, IL - County Departments ↗The county's department listing includes no building permit, inspection, or zoning office; non-home-rule rural Illinois counties generally do not require county residential buil…
Saline County IL - Official Website ↗No county building department or county-wide building permit requirement was found for unincorporated Jasper County; documented permitting is municipal only (City of Newton), co…
City of Newton / Jasper County IL - Forms, Applications & Permits ↗County's official department list shows no building or code-enforcement office; consistent with Illinois having no statewide residential code mandate for non-home-rule rural cou…
Cumberland County, Illinois Official Website ↗Jackson County's official departments list includes no building, zoning, planning, or code-enforcement office; as a non-home-rule rural IL county it does not administer building…
Jackson County IL - Departments ↗The county Zoning page states Coles County does not operate under a county zoning framework and does not require building permits at the unincorporated level; state/federal law …
Coles County - Zoning ↗Pulaski County's official department listing includes no building or code-enforcement office; as a non-home-rule rural county, Illinois imposes no statewide residential permit m…
Pulaski County IL official website (departments) ↗The county's list of offices (Clerk, Circuit Clerk, Treasurer, State's Attorney, Assessor, Sheriff, Health Department) includes no building, zoning, or code-enforcement departme…
Scott County, Illinois - Official Website ↗Every county here has a full profile — water, land prices, hazard safety, seclusion, and the rest of its building rules. See the Illinois state page for all 102 counties ranked, or go back to the national list.
Off-grid gear
Building on land in one of these Illinois counties? The kit we'd start with:
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General guidance, not legal advice. Off-grid, building, and land-use rules are often set at the county level and change often. Verify with your county and state before acting. Data reviewed 2026-06-26.
