Unincorporated Woodford County, Illinois requires a county zoning permit for covered development, but the county has not adopted a building code.12 The Building and Zoning Department administers zoning, subdivision, floodplain and rural-addressing work, while the Woodford County Health Department issues private septic and well permits.34
At a glance
- Building permit
- County zoning permit required; no county building code adopted12
- Zoning
- County-administered in unincorporated areas5
- Septic permit
- Issued by the Woodford County Health Department4
- Private well permit
- Issued by the Woodford County Health Department6
- Minimum dwelling size
- 800 sq ft of habitable floor area per dwelling unit7
- RV living
- Long-term residential occupancy is not confirmed; ask Building and Zoning5
- Owner-builder exemption
- Not confirmed; ask Building and Zoning before applying8
- Floodplain development
- County development permit required in regulated floodplains9
Who to call
Building permits
Woodford County Building and Zoning Department
Zoning permits, plat approval, variances, special uses, rezoning, floodplain administration, stormwater matters and rural addressing in unincorporated Woodford County
115 N Main Street, Room 100, Eureka, IL 61530
Septic permits
Woodford County Health Department
Plan review, permits and inspections for private septic and well systems in Woodford County
1831 S Main Street, Eureka, IL 61530
Contact details are copied from each office’s official page and were checked against it on September 27, 2026.
Do you need a building permit in Woodford County, Illinois?
Unincorporated Woodford County requires a zoning permit for covered development even though the county is a non-building-code jurisdiction and has adopted no county building code.12 That distinction matters: a landowner should not read “no county building code” as permission to build without county approval. The Building and Zoning Department reviews and issues zoning permits and also processes plat approvals, variances, special-use permits, text amendments and rezoning requests.3 Illinois has statewide baseline building-code requirements, including rules for jurisdictions without a locally adopted code, while the state does not itself issue permits for privately funded construction.1011 General county building inspections and a county certificate-of-occupancy requirement could not be confirmed; ask Building and Zoning what project-specific sign-offs apply before work begins.2
Who handles permits in Woodford County, and how do you reach them?
The Woodford County Building and Zoning Department is the first stop for development in unincorporated Woodford County. The office administers the zoning ordinance, subdivision rules, floodplain ordinance, erosion and stormwater rules, and rural addressing.3 Reach the department at 309-467-3023 or [email protected], or visit 115 N Main Street, Room 100, Eureka, Illinois.3 The office issues zoning permits and handles plat approval, variances, special uses and rezoning requests.3 It is not a conventional code-enforcement building department because Woodford County has adopted no county building code.2 For private septic and well work, contact the Woodford County Health Department instead at 309-467-3064 or [email protected], at 1831 S Main Street in Eureka.6
Does Woodford County have zoning?
Woodford County administers zoning in the unincorporated parts of the county; land inside a city or village may be governed by that municipality instead.12 The county publishes zoning-district mapping, and the applicable district controls project-specific uses and dimensional rules.13 The zoning ordinance requires at least 800 square feet of habitable floor area per dwelling unit in the unincorporated area.7 Setbacks and building heights are district-specific rather than one statewide measurement, so identify the parcel's district before selecting a house site.1415 Subdivision approval also applies in unincorporated Woodford County, although a city or village's standards may control inside its extraterritorial subdivision area when those standards are higher.16 Ask Building and Zoning to confirm the district, allowed use, setbacks and any municipal planning-area overlap for the parcel.3
How do septic permits work in Woodford County?
The Woodford County Health Department reviews plans, issues permits and inspects new or repaired private septic systems.46 Illinois requires plan approval from the state or applicable local authority before construction of a new private sewage disposal system begins, including specified major changes to an existing system.17 Contact Environmental Health at 309-467-3064 before finalizing the house location, because a dwelling's zoning permit cannot be processed until the septic permit and soil testing are addressed.4 Only about 5.7% of Woodford County soils avoid a severe limitation rating for a conventional septic drain field, so a site evaluation may materially affect system design and cost.18 The Health Department also reviews plans and issues private-well permits, while Illinois requires approval before constructing, modifying or sealing a well.619
Can you live in an RV or tiny home on your land in Woodford County?
Woodford County has not published a confirmed general rule allowing long-term residential RV occupancy or temporary camping on private land, so ask Building and Zoning about the parcel and proposed duration before moving an RV onto it.5 The county floodplain ordinance treats travel-trailer installation lasting more than 180 days per year as development that can require a floodplain permit.9 That floodplain threshold is not a general permission to occupy an RV elsewhere. Tiny homes are not addressed as a separate confirmed category, but a dwelling under county zoning must contain at least 800 square feet of habitable floor area per dwelling unit.7 Illinois separately regulates manufactured-home installation and licensed manufactured-home communities, while local zoning, floodplain and utility requirements may still apply.20 An owner-builder exemption from Woodford County zoning requirements could not be confirmed, so ask the zoning office before assuming one applies.8
Building a home in Woodford County: the steps, in order
- Confirm that the parcel is in unincorporated Woodford County, then ask Building and Zoning to identify its zoning district and any municipal planning-area overlap.1213
- Discuss the house site with the Woodford County Health Department, complete the soil evaluation, and obtain the required septic approval before the dwelling zoning permit is processed.4
- Apply to Building and Zoning for the county zoning permit and any needed rural address, subdivision, variance, special-use, stormwater or floodplain review.3
- If the site is in a regulated floodplain, obtain a development permit from the Zoning Administrator before starting development.9
- If the driveway enters a state-maintained road, obtain IDOT's right-of-way permit before work starts.21
- Confirm directly whether any local inspection or occupancy sign-off applies, because the county's general building-inspection and certificate-of-occupancy rules could not be confirmed.2
What should you check before buying land in Woodford County?
Start with septic feasibility: only about 5.7% of county soils avoid a severe limitation rating for a conventional drain field, so obtain a site evaluation before treating a listing's proposed home site as buildable.18 Verify the zoning district, minimum dwelling size, setbacks and permitted use with Building and Zoning; unincorporated dwellings require at least 800 square feet of habitable floor area.137 Check flood maps and ask whether the county floodplain permit applies before grading, filling, installing utilities or placing a structure.9 Confirm whether access is from a county, township or state road; work within a state-maintained right-of-way needs an IDOT permit.21 Typical farmland value is about $10,987 per acre, while the median annual property-tax bill is about $4,224 at an effective rate near 2.2%.222324
Watch-outs
- Woodford County's lack of an adopted county building code does not eliminate the county zoning-permit requirement for covered development in unincorporated areas.12
- Residential RV occupancy, temporary camping and a specific owner-builder exemption remain unconfirmed; ask the Woodford County Building and Zoning Department before committing to those plans.58
- A floodplain development permit can apply to construction, grading, filling, utilities and travel-trailer installation lasting more than 180 days per year.9
Sources
- Woodford County Building and Zoning (2026 county census)
- Building and Zoning, quoted and re-checked
- Woodford County Building and Zoning Department (woodford-county.org)
- Woodford County Septic Program (2026 county census)
- Building and Zoning (2026 county census)
- Woodford County Health Department (woodford-county.org)
- Chapter 154: Zoning Ordinance, quoted and re-checked
- (2026 county census)
- Chapter 150: Flood Damage Prevention Ordinance, quoted and re-checked
- Illinois Codes (Illinois statewide rule), quoted and re-checked
- Illinois Codes FAQ (Illinois statewide rule), quoted and re-checked
- Building and Zoning, quoted and re-checked
- GIS instructions - Zoning Districts, quoted and re-checked
- 55 ILCS 5/5-12001 — Authority to regulate and restrict location and use of structures (Illinois statewide rule), quoted and re-checked
- 55 ILCS 5/5-12001 — Authority to regulate and restrict location and use of structures (Illinois statewide rule), quoted and re-checked
- Chapter 153: Land Subdivision Ordinance of Woodford County, quoted and re-checked
- 77 Ill. Adm. Code 905.190 Installation Approval (Illinois statewide rule), quoted and re-checked
- Share of soils without severe limits for a conventional septic drain field (USDA SSURGO): Bolthole Index county data
- 77 Ill. Admin. Code 920.130, Water Well Permit Requirements (Illinois statewide rule), quoted and re-checked
- Manufactured & Modular Homes/Mobile Structures (Illinois statewide rule), quoted and re-checked
- Highway Permits (Illinois statewide rule), quoted and re-checked
- Farmland value per acre (USDA census): Bolthole Index county data
- Median property tax bill: Bolthole Index county data
- Effective property tax rate: Bolthole Index county data
Written September 27, 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.