Bolthole Index

Peoria County, Illinois

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

56Index Score / 100
#58 of 102 in Illinois

Unincorporated Peoria County, Illinois requires building permits for new construction, additions, alterations and repairs1. Peoria County Planning and Zoning reviews plans, issues permits and requires inspections, while the Peoria City/County Health Department separately permits private sewage systems234. Zoning, floodplain status and road access can add approvals before work begins567.

At a glance

Building permit
Required for new construction, additions, alterations and repairs in unincorporated areas1
Building inspections
Required for permitted projects; type and number depend on the project3
Zoning
County zoning applies in unincorporated areas under the Unified Development Ordinance5
Septic permit
Required through the Peoria City/County Health Department48
Owner-builder exemption
No general exemption confirmed; ask Planning and Zoning before doing your own work9
County-road driveway
An approved entrance permit is required before construction7
Floodplain development
A county permit is required before development in a Special Flood Hazard Area6

Who to call

Building permits

Peoria County Planning and Zoning

Building, electrical, HVAC and plumbing permits, plus zoning administration, for unincorporated Peoria County

309-672-6915

[email protected]

324 Main Street, Room 301, Peoria, IL 61602

Septic permits

Peoria City/County Health Department, Environmental Health Division

Reviews onsite wastewater treatment system (septic) plans, issues permits, and inspects disposal system installation and repair countywide

309-679-6161

Contact details are copied from each office’s official page and were checked against it on September 29, 2026.

Do you need a building permit in Peoria County, Illinois?

Yes. Peoria County requires permits for new construction, additions, alterations and repairs on unincorporated land1. The county adopted the 2018 ICC family of codes and the 2017 National Electrical Code for enforcement beginning in 2021; its listed energy code took effect in 202410. Every county-permitted project requires inspection, although the number and type vary with the work3. Illinois does not issue permits or perform inspections for privately funded projects; those requirements are administered by the local government with jurisdiction1112. We could not confirm a general owner-builder exemption for unincorporated Peoria County, so ask Planning and Zoning before assuming you may act as your own contractor9.

Who issues building permits in Peoria County, and how do you reach them?

Peoria County Planning and Zoning serves unincorporated properties from 324 Main Street, Room 301, Peoria, and accepts digital permit submissions at [email protected]13. Incomplete submissions do not proceed to plan review, digital plans must be readable, and plans must be approved before a permit can be issued2. Over-the-counter submissions remain available, and appointments are encouraged for zoning services213. Fees vary by project and size; the published schedule adds a $45 technology fee to each listed one- or two-family residential new-construction, addition or alteration permit14. Planning and Zoning says its counter accepts check or exact cash13.

Does Peoria County have zoning?

Yes. Peoria County Planning and Zoning administers zoning districts under the Unified Development Ordinance for unincorporated property5. Setbacks and height limits depend on the applicable district rather than one countywide number1516. Land division is also regulated under the county ordinance, and a split may involve special-use approval, survey approval, recording or access conditions17. In the A-1 Agricultural Preservation district, a proposed split below the 40-acre minimum requires a Special Use; that threshold should not be applied to other districts18. Short-term rentals are treated as Overnight Accommodations and require County Board Special Use approval in most unincorporated zoning districts19. Incorporated municipalities may have separate rules, so identify the actual jurisdiction before relying on the county standards.

How do septic permits work in Peoria County?

The Peoria City/County Health Department reviews private sewage-disposal applications and plans, issues permits, and inspects installation or repair8. A valid Health Department permit is required before constructing, altering or extending a private sewage-disposal system in Peoria County4. Illinois also requires plan approval before construction and at least 48 hours' notice to the applicable authority before septic work begins20. Only 35.9% of county soils are rated without severe limitations for a conventional drain field, so make the site evaluation an early purchase contingency rather than assuming acreage alone makes a parcel suitable21. The Health Department provides online records for onsite wastewater systems and wells installed after 2009 and advises pumping septic tanks every 2 to 3 years22.

Can you live in an RV or tiny home on your land in Peoria County?

We could not confirm a general rule allowing residential or long-term RV occupancy on private land in unincorporated Peoria County, so ask Planning and Zoning about the parcel and proposed use before buying or moving an RV onsite5. The Illinois campground rules cover licensed campgrounds and do not establish permission to live in an RV on a private lot23. We also could not confirm a countywide tiny-home rule or minimum dwelling size; zoning district, building-code, septic and floodplain requirements still need separate answers from the responsible offices5146. Manufactured homes have a statewide installation path, but local zoning, building, floodplain and utility rules may still apply24.

Building a home in Peoria County: what are the steps?

  1. Confirm that the parcel is unincorporated, identify its zoning district, and ask Planning and Zoning for the applicable use, lot, setback and height rules515.
  2. Check whether a land split or A-1 lot-size issue requires an additional county approval1718.
  3. If public sewer is unavailable, obtain Health Department septic plan approval and a permit before construction84.
  4. Determine whether floodplain development approval or a county-road entrance permit is needed before site work67.
  5. Submit complete, readable plans to Planning and Zoning; plans must clear review before permit issuance2.
  6. Budget from the current project-based fee schedule, including the applicable technology fee14.
  7. Schedule and pass the inspections required for the permitted project3.

What should you check before you buy land in Peoria County?

Start with jurisdiction, zoning and legal access: county rules govern unincorporated parcels, land splits are regulated, and a new residential, commercial or field entrance onto a county road needs Highway Department approval before construction5177. For a state, municipal or township road, contact that road authority instead7. Development in a Special Flood Hazard Area requires a county floodplain development permit before work begins6. Confirm septic feasibility because only 35.9% of county soils are rated without severe limitations for conventional drain fields21. A new, modified or abandoned well also requires a state or approved-local-health-department permit before work25. For carrying costs, the median property-tax bill is $3,416 per year and the effective rate is 2.2%2627.

Watch-outs

  • A land split in the A-1 Agricultural Preservation district that falls below 40 acres requires a Special Use; do not assume that rule applies to every zoning district18.
  • A new entrance onto a Peoria County road needs Highway Department approval before construction, while access from a state, municipal or township road goes to that road authority7.
  • Most unincorporated short-term rentals require County Board Special Use approval because the county classifies them as Overnight Accommodations19.

Sources

  1. Peoria County - Residential Permits (2026 county census)
  2. Permits, quoted and re-checked
  3. Residential Permits, quoted and re-checked
  4. Onsite Wastewater Treatment Systems, quoted and re-checked
  5. Peoria County - Planning & Zoning (2026 county census)
  6. Build Responsibly, quoted and re-checked
  7. Highway Department Permits, quoted and re-checked
  8. Onsite Wastewater Treatment Systems, quoted and re-checked
  9. (2026 county census)
  10. Building Inspections, quoted and re-checked
  11. Illinois Codes FAQ (Illinois statewide rule), quoted and re-checked
  12. Illinois Codes FAQ (Illinois statewide rule), quoted and re-checked
  13. Peoria County Planning and Zoning (peoriacounty.gov)
  14. Building Permit Fee Schedule, quoted and re-checked
  15. 55 ILCS 5/5-12001 — Authority to regulate and restrict location and use of structures (Illinois statewide rule), quoted and re-checked
  16. 55 ILCS 5/5-12001 — Authority to regulate and restrict location and use of structures (Illinois statewide rule), quoted and re-checked
  17. Land Use Committee - 01-26-2026, quoted and re-checked
  18. Land Use Committee - 01-26-2026, quoted and re-checked
  19. Short-Term Rental Property, quoted and re-checked
  20. 77 Ill. Adm. Code 905.190 Installation Approval (Illinois statewide rule), quoted and re-checked
  21. Share of soils without severe limits for a conventional septic drain field (USDA SSURGO): Bolthole Index county data
  22. Peoria City/County Health Department, Environmental Health Division (pcchd.org)
  23. Youth Camps and Campgrounds (Illinois statewide rule), quoted and re-checked
  24. Manufactured & Modular Homes/Mobile Structures (Illinois statewide rule), quoted and re-checked
  25. 77 Ill. Admin. Code 920.130, Water Well Permit Requirements (Illinois statewide rule), quoted and re-checked
  26. Median property tax bill: Bolthole Index county data
  27. Effective property tax rate: Bolthole Index county data

Written September 29, 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.

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County locator

Peoria County in Illinois

56
County map
Peoria County highlighted among the Illinois counties · colored by Index score

How Peoria County scores

Seclusion33100% ev.
Self-Sufficiency64100% ev.
Admin Boringness4390% ev.
Durability68100% ev.
Property Autonomy42100% ev.
Carry Cost61100% ev.

Evidence strength: 98%. This reports direct-source completeness and fallback use; it is separate from the score and is not a confidence interval. How it works →

$167kTypical home
2.2%Property tax
$7,216Land / acre
38.1"Annual rain
3.1% of yrsSevere drought
6.2 / yr (+5.9)Mid-century 100°F days
15.4 daysMid-century dry spell
1.95" (+7.3%)Mid-century 1-day rain
1.74×Wildfire change factor
100%Forward climate coverage
$1,626Home insurance / yr
4.2% / yrInsurance growth
0.99%Nonrenewal rate
county median (2+ published ZIPs)Insurance basis
134,555People within 30 min
1,991,626People within 2 hr
131,121Radius comparison (15 mi)
286.9People / sq mi
0.1%Federal land
85.8%Land at 15% slope or less
35.9%Septic soil without severe limits
136,597 acWorkable land screen
27.2%Wooded land
57.2 tonsBiomass / forest ac
51.5°FAvg temp

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Answers from the rulebook for Peoria County

What the ordinances and state agencies actually say — one answer per question, each quoted from the official source and independently re-checked.

Peoria County rules

  • Building code adoptedAdopted (with conditions)

    Building-code enforcement by Peoria County in unincorporated areas.

    • Effective July 1, 2021, the county enforced the 2018 ICC I-Codes and 2017 National Electrical Code.
    • The 2021 Illinois Energy Conservation Code is listed as effective January 1, 2024.
    • The listed codes include the 2018 IBC, IRC, IEBC, IMC, IFGC, IFC, IPMC, 1996 Illinois Accessibility Code, 2017 NEC, and current Illinois Plumbing Code Part 890.
    “Effective July 1, 2021, Peoria County will enforce the 2018 ICC I-Codes and the 2017 National Fire Protection Association 70: National Electric Code.”
  • InspectionsRequired

    Projects requiring Peoria County permits.

    • The number and type of inspections vary by project.
    “All permits will require inspection, although the number and type of inspections vary by project.”
  • Minimum lot sizeDistrict specific (with conditions)

    Land splits in the A-1 Agricultural Preservation Zoning District in unincorporated Peoria County.

    • The official county agenda states that a Special Use is required when a proposed land split does not meet the 40-acre minimum lot size in the A-1 Agricultural Preservation Zoning District.
    • The cited matter was a specific Special Use request; this claim does not generalize the 40-acre threshold to every zoning district.

    minimum lot size: >= 40 acres (Special Use may be required when a proposed land split does not meet the minimum.)

    “WHEREAS, said ordinance requires a Special Use when a proposed land split does not meet the 40-acre minimum lot size in the “A-1” Agricultural Preservation Zoning District;”
  • Who permits septicLocal (with conditions)

    Private sewage disposal systems in Peoria County administered by the Peoria City/County Health Department.

    • The health department reviews applications and plans, issues permits, and inspects disposal systems for proper installation or repair.
    “The Environmental Health Division's goal is to prevent disease, nuisances, and eliminate improperly treated sewage by: Reviewing applications and plans as well as issuing permits. Inspecting disposal systems for proper installation or repair.”
  • Septic permitRequired

    Construction, alteration, or extension of a private sewage disposal system in Peoria County.

    “Requiring anyone constructing, altering, or extending a private sewage disposal system to have a valid permit issued by the Health Department.”
  • Subdividing landRegulated (with conditions)

    Subdivision and land-split activity governed by Peoria County Code Chapter 20 in unincorporated Peoria County.

    • The official agenda identifies Chapter 20 of the Peoria County Code as the Unified Development Ordinance regulating subdivision of land.
    • Specific land splits may require Special Use approval, tract-survey approval, recording, access easements, or other conditions.
    “WHEREAS, the County of Peoria has adopted a Unified Development Ordinance which regulates the subdivision of land and which is found in Chapter 20 of the Peoria County Code;”
  • Driveway accessRequired

    New commercial, residential, or field access onto a Peoria County road.

    • The entrance permit must be approved before beginning construction.
    • For access onto a state, municipal, or township roadway, the applicant must contact the corresponding government officials instead.
    • The source states the Peoria County Entrance Ordinance is effective August 1, 2023.
    • The fee is determined after application review.
    “If you plan on constructing a new commercial, residential, or field access onto a county road, you are required to submit an entrance permit application to the Highway Department for approval before beginning construction.”
  • Building in a floodplainRequired

    Development within a Special Flood Hazard Area in Peoria County.

    • Development includes construction, repair, replacement, addition, filling, paving, demolition, storage, and clearing of land.
    • Additional building-code and floodplain-code requirements apply.
    • Regulatory-floodway development requires an approved variance.
    • The floodplain regulations require other applicable local, state, and federal permits before issuance.
    “All development within the SFHA is required to obtain a floodplain development permit prior to starting development projects in a floodplain area.”
  • Short-term rentalsLimited

    Short-term rentals in unincorporated Peoria County.

    • Short-term rentals are classified as Overnight Accommodations.
    • In most zoning districts, approval of a Special Use by the Peoria County Board is required.
    • The classification applies regardless of whether the establishment is called a bed and breakfast, hotel, motel, boarding house, rooming house, or another daily-rate commercial establishment.
    • The source includes properties advertised on AirBnB and VRBO.
    “In unincorporated Peoria County, "Short-Term Rentals" are classified as Overnight Accommodations. In most zoning districts, Overnight Accommodations require the approval of a Special Use by the Peoria County Board.”
  • Permit feesPublished (with conditions)

    Peoria County Planning and Zoning building permits and related permits.

    • The fee schedule was revised January 1, 2025.
    • A $45 technology fee is added to each listed residential permit and applicable permit categories.
    • Fees vary by project type and size; the cited excerpt is not a complete fee schedule.

    technology fee: 45 USD (Added to each 1 & 2 Family Residential: New Construction, Additions or Alterations permit.)

    “A technology fee of $45.00 will be added to each “1 & 2 Family Residential: New Construction, Additions or Alterations” permit.”
  • Permit processPublished (with conditions)

    Peoria County building-permit submissions.

    • Digital plans must be readable and clear for plan review.
    • Incomplete submittals are not sent for plan review.
    • Plans must be reviewed and approved before a permit can be issued.
    • Over-the-counter submissions remain accepted.
    • Credit-card transactions carry a 3% service charge.
    “Incomplete submittals will not be sent for plan review. Please note that digital plans must be readable/clear for plan review to take place. Plans will then need to reviewed and approved before a permit can be issued.”
  • County-wide zoningPresent

    Peoria County Planning & Zoning administers a Unified Development Ordinance with zoning districts governing land use in unincorporated areas.

    Peoria County - Planning & Zoning ↗Scouted from the county site, not yet independently re-checked

Illinois rules that apply here

  • Building permitLimited

    Privately funded construction in Illinois; the State does not itself issue building permits, while any required permit is addressed by the applicable local government.

    • Permit requirements may be imposed and administered by the municipality, village, city, or county having jurisdiction.
    • The Illinois Capital Development Board states that statewide building codes became effective 1/1/2025, while local code officials remain the best source for project-specific answers.

    statewide building-code effective date: 2025-01-01

    “No. If any of these are required, they would be addressed by the unit of local government.”
    One more reviewed finding on this topic
    • Not required — Issuance of building permits by the State of Illinois for privately funded construction.
      “No. If any of these are required, they would be addressed by the unit of local government.”
  • Certificate of occupancyLimited

    Occupancy permits or certificates for privately funded construction in Illinois.

    • The State does not issue occupancy permits for privately funded construction.
    • If an occupancy permit is required, it is addressed by the applicable unit of local government.
    “No. If any of these are required, they would be addressed by the unit of local government.”
    One more reviewed finding on this topic
    • Not required — Issuance of occupancy permits or certificates by the State of Illinois for privately funded construction.
      “No. If any of these are required, they would be addressed by the unit of local government.”
  • SetbacksDistrict specific (with conditions)

    County zoning regulations for building or setback lines outside municipalities with municipal zoning ordinances.

    • The actual setback distances are established by applicable county zoning districts or other local ordinances.
    • Agricultural buildings may be required to conform to building or setback lines.
    “to establish building or setback lines”
  • Building heightDistrict specific (with conditions)

    County zoning districts outside municipalities with municipal zoning ordinances.

    • The applicable county zoning ordinance determines the actual height limit by district or use.
    • No single statewide height measurement was identified.
    “including height of buildings and structures”
  • Manufactured homesAllowed (with conditions)

    Occupancy of manufactured homes as dwellings, including occupancy in manufactured home communities regulated by IDPH.

    • Manufactured home communities with 5 or more sites must be licensed by IDPH, except communities located in home rule units.
    • IDPH annually inspects licensed communities for renewal, including water, sewage disposal, electrical systems, lighting, roads, spacing of homes, and garbage disposal.
    • Manufactured homes moved since January 1, 1980 must be secured using equipment meeting IDPH standards.
    • Effective December 31, 2001, manufactured homes must be installed by an Illinois licensed manufactured home installer or the homeowner and installed according to manufacturer instructions; if unavailable, the IDPH Manufactured Home Installation Code applies.
    • Local zoning, building, floodplain, and utility requirements may also apply.

    manufactured home community license threshold: >= 5 sites (Communities located in home rule units are excepted from this IDPH licensing statement.) · moved-home tiedown requirement effective date: >= 1980-01-01 · installation requirement effective date: >= 2001-12-31

    “designed and situated so as to permit its occupancy as a dwelling place for one or more persons”
  • Septic inspectionLimited

    New and replacement surface-discharging private sewage disposal systems covered by Illinois EPA general NPDES Permit ILG62.

    • Coverage under the general permit is limited to eligible dischargers.
    • Systems not eligible for general-permit coverage may require an individual NPDES permit.
    • Periodic inspection, monitoring, and reporting are required under the permit.
    “The permit sets discharge limits and requires periodic inspection, monitoring and reporting.”
  • Off-grid sanitationAllowed (with conditions)

    Off-grid disposal of human wastes through privies, portable toilets, recirculation toilets, incinerator toilets, and compost toilets statewide in Illinois.

    • Other domestic wastes must be disposed of in a conventional private sewage disposal system.
    • Compost toilets may also be used for other organic domestic wastes.
    • Privies have construction, capacity, venting, maintenance, and abandonment requirements.
    • A privy pit must have a minimum capacity of 50 cubic feet per seat.
    • A privy must be pumped when filled to within 18 inches of the bottom of the riser.
    • Vault privies are required where groundwater or limestone formations are within 4 feet of the bottom of the pit.
    • Recirculating toilets must meet NSF International/ANSI Standard 41 and residuals must go to an approved public or private sewage disposal system.
    • Incinerator and compost toilets have separate maintenance and disposal requirements; compost toilets must meet NSF International/ANSI Standard 41.

    privy pit minimum capacity: >= 50 cubic feet per seat · privy pumping trigger: <= 18 inches from bottom of riser (Pump when filled to within this distance.) · vault-privy groundwater or limestone separation: < 4 feet from bottom of pit (Watertight, non-metal vaults are required where the condition applies.)

    “Privies, portable toilets, recirculation toilets, incinerator toilets and compost toilets are approved for private sewage disposal of human wastes.”
  • Well permitRequired

    Construction of a new water well, modification of an existing water well, or sealing of an abandoned water well in Illinois.

    • A permit must be obtained from the Illinois Department of Public Health or an approved local health department before work begins.
    • The application must use Department or approved local health department forms and include a plan and drawing of the proposed construction.
    • The plan must include the lot size, slope, property lines, distances to septic tanks, abandoned wells, property lines, seepage fields, sewers, and other contamination sources; driller license number and name; estimated daily pumping capacity if greater than 100,000 gallons per day; well location; owner name and address; well type; estimated depth; well-use type; and proposed aquifer.
    • The permit is void if construction has not commenced within one year after issuance.
    • The permit fee for constructing, deepening, modifying, or sealing a water well may not exceed $100.
    • The Department will deny a permit request when available information indicates groundwater contamination exceeds Class I groundwater standards, subject to the treatment approval provision in subsection (f)(2).
    • The permittee must notify the Department, approved local health department, or approved unit of local government by telephone or in writing at least two days before work begins.

    maximum water well permit fee: <= 100 USD · permit commencement deadline: 1 year after issuance (Permit is void if construction has not commenced within that period.) · pre-work notification: >= 2 days (Notification may be by telephone or in writing.)

    “A permit to construct a new water well, modify an existing water well or seal an abandoned water well shall be obtained from the Department or approved local health department prior to start of work.”
  • Campground & park staysAllowed (with conditions)

    Overnight camping in Illinois campgrounds subject to the Campground Licensing and Recreational Area Act.

    • IDPH annually inspects and licenses campgrounds in Illinois.
    • The state campground definition includes camping and temporary parking of recreational vehicles.
    • Campgrounds within home rule units of government are exempt from the state campground licensing requirement.
    • Recreational areas without overnight camping, such as highway rest stops and picnicking areas, are subject to the rules but are not licensed or routinely inspected.

    minimum persons for statutory campground threshold: >= 10 persons · minimum camping duration for statutory campground threshold: >= 6 camping days per calendar year

    ““Camping Day” means any 24 hour period or portion thereof during which the participants remain overnight at the site.”
  • county building authorityGeneral

    Illinois counties adopting and enforcing building codes and issuing building permits for residential construction in unincorporated areas, subject to the statewide baseline framework.

    • A municipality or county is not required to adopt a building code.
    • A county that does not adopt a building code is treated as a non-building-code jurisdiction, and section 10.09-1 of the Capital Development Board Act applies.
    • A county that adopts a building code must comply with section 10.18 of the Capital Development Board Act.
    • Locally adopted codes must regulate residential structural design at least as stringently as the baseline International Residential Code.
    • For privately funded projects, the local code official is the authority having jurisdiction; the State does not issue private-project building permits, perform plan reviews, or perform inspections.
    “A municipality or county is not required to adopt building codes. If they do NOT adopt a building code then they are considered a non-building code jurisdiction and section 10.09-1 of the Capital Development Board Act (20 ILCS 3105) applies. If they do adopt a building code(s) then it must comply with section 10.18 of the Capital Development Board Act (20 ILCS 3105).”

Still unanswered

We looked and could not find an official answer yet. Silence is not permission — ask the county directly.

  • Owner-builder exemption — Owner-builder exemptions from county building-permit or contractor requirements.
  • Local zoning — Whether incorporated municipalities, townships, or villages in Peoria County have separate local zoning rules.
  • Zoning districts — Publication of the complete Peoria County zoning-district map or schedule.
  • Minimum dwelling size — Minimum dwelling size requirements in Peoria County zoning districts.
  • Lot coverage — Lot-coverage requirements in Peoria County zoning districts.
6 more unanswered
  • Living in an RV
  • Camping on your land
  • Tiny homes
  • Accessory dwellings
  • Mandatory utility hookup
  • Agricultural exemption

Each answer was extracted from an official source and independently re-checked against that source by a second reviewer. That is an evidence check, not legal advice. Rules change; confirm with the authority before you buy or build.

Living off-grid in Peoria County, Illinois

Is Peoria County a good place to live off-grid or homestead?

Peoria County scores 56/100 on the Bolthole Index, a solid county profile. Its strengths: mixed durability signals and workable self-sufficiency basics (38.1″/yr rainfall). Watch-outs: about 134,555 people within a 30-minute drive.

Do you need a building permit in Peoria County, Illinois?

Peoria County generally requires a residential building permit, and it enforces county zoning. Onsite septic is permitted by Peoria City/County Health Department (Onsite Wastewater Treatment Systems). These answers are quoted from official sources and independently re-checked. Rules change and cities within the county differ — always confirm with the county before you buy or build.

How much does land cost in Peoria County, Illinois?

Land in Peoria County runs about $7,216 per acre, based on the latest county data.

What is the water situation in Peoria County?

Peoria County gets about 38.1" of rain a year, with severe drought in roughly 3.1% of years.

How remote is Peoria County?

A representative private-land location has about 134,555 people within a 30-minute drive and 1,991,626 within two hours. The road-network catchments count population across county lines and clusters of smaller cities; straight-line radius values remain available as a comparison.

Off-grid gear

Going off-grid in Peoria County means bringing your own water and power. The kit we’d start with:

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How Peoria compares in Illinois

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