Bolthole Index

De Witt County, Illinois

Building permits, zoning and septic rules in Clinton, Illinois

Clinton, Illinois has its own zoning ordinance and a city Building & Zoning office for development and code enforcement.12 Building permits for subdivision lots depend on city approval of the final plat and public-improvement plans.3 For private sewage systems in De Witt County, contact the DeWitt-Piatt Bi-County Health Department; Illinois requires plan approval before construction of a new system.45

At a glance

Building permits
City applications available; subdivision approvals precede building-permit issuance23
Zoning
Clinton has its own zoning ordinance1
Septic
DeWitt-Piatt Bi-County Health Department; new systems need prior plan approval45
Subdivision occupancy
Required utilities must be ready and access roadways constructed6
Owner-builder plumbing
Conditional Illinois exemption; code compliance and inspections still apply7
Private wells
State or approved local health-department permit required before construction, modification or sealing8

Who to call

Building permits

City of Clinton Building & Zoning

City building and zoning questions, new development and code enforcement

(217) 935-6552

[email protected]

118 W. Washington St.

Septic permits

DeWitt-Piatt Bi-County Health Department

Private sewage disposal permits and inspections for De Witt County

217.935.3427

5924 Revere Road

Contact details are copied from each office’s official page and were checked against it on October 12, 2026.

Off-grid gear

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

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Do you need a building permit in Clinton, IL?

Clinton publishes a residential and commercial building-permit application through the city Building & Zoning page.2 For Clinton subdivision lots, the city council must approve the final plat and public-improvement plans and specifications before a building permit can issue.3 Multi-family, commercial and industrial development must also fulfill the applicable development requirements before building-permit issuance.3

Clinton’s adopted building-code provision names the International Building Code, 2000 edition, with city amendments kept in the city clerk’s office.9 Illinois now requires statewide baseline building-code standards, including minimum structural requirements for locally adopted residential codes; ask the Clinton Building Official which code and amendments apply to your project.102

Who handles building permits and zoning in Clinton?

The City of Clinton Zoning Administrator/Building Official oversees new development and code enforcement and can be reached at (217) 935-6552.2 Use the city Building & Zoning page for the residential and commercial building-permit application and city zoning map.2

Clinton’s own zoning ordinance governs zoning inside city limits; De Witt County’s zoning chapter excludes municipalities with their own zoning ordinance.111 For land outside Clinton, consult the De Witt County guide for the county building-permit answer.12 Private sewage questions stay with the DeWitt-Piatt Bi-County Health Department rather than moving to the city building counter.4

Does Clinton zoning allow RVs, tiny homes or a small lot?

Clinton has a city zoning ordinance, so a proposed home or land use needs an answer for the city parcel rather than a county zoning district.111 Ask Clinton Building & Zoning to identify the parcel’s zoning district using the city zoning map before you choose a house plan.2

We could not confirm Clinton’s rules for living in an RV, occupying a tiny home or adding an accessory dwelling; ask the city Building Official about the exact dwelling type and proposed occupancy.2 We also could not confirm Clinton’s district-specific minimum lot sizes, setbacks or minimum dwelling sizes; request those requirements from Building & Zoning before committing to a lot or foundation footprint.2

How do septic permits and wells work inside Clinton?

For a Clinton property proposing private sewage disposal, contact the DeWitt-Piatt Bi-County Health Department about system approval.4 Illinois requires plan approval before construction of a new private sewage disposal system and at least 48 hours’ notice before construction, installation, repair or modification begins.5 The health department also requires a permit application when a septic tank is replaced or a major component is removed or added.13

A compost toilet does not resolve all wastewater disposal: Illinois requires other domestic wastes to go to a conventional private sewage disposal system.14 Illinois also requires an IDPH or approved local health-department permit before constructing, modifying or sealing a private well; ask the health department which office should receive the application for your address.813

Building a home in Clinton: what are the steps?

  1. Contact Clinton Building & Zoning with the address, intended use and proposed building work; request the zoning district and applicable building application.2
  2. For a subdivision project, submit the preliminary plan, final plat and improvement plans to the planning commission; city council approval of the final plat and public-improvement plans precedes building-permit issuance.153
  3. If proposing private sewage disposal, arrange health-department review and obtain the required plan approval before constructing the new system.45
  4. Before occupying a structure in a subdivision approved for platting or replatting, ensure required utility facilities are installed and ready to serve the property and access roadways have been constructed.6

What should you check before buying land in Clinton?

Clinton’s subdivision jurisdiction can reach contiguous territory up to 1.5 miles beyond the city limits; being outside the city does not by itself settle which subdivision approvals are needed.15 Ask Clinton Building & Zoning about subdivision jurisdiction for a parcel near the city boundary.215

For a driveway involving work in a state-maintained highway right-of-way, Illinois requires an IDOT permit before work begins.16 State floodway authorization may also apply to construction in regulated floodways; we could not confirm Clinton’s local floodplain-development rule, so ask the city Building Official about local review as well.172 De Witt County’s effective property-tax rate is 1.8%, a county-level figure rather than a tax quote for a particular Clinton parcel.18

Watch-outs

  • We could not confirm Clinton’s RV or tiny-home occupancy rules; ask Clinton Building & Zoning before planning to live on a vacant lot.2
  • Clinton subdivision occupancy requires ready utility facilities and constructed access roadways.6
  • Illinois’s owner-occupant plumbing exemption requires code compliance and inspection and does not establish a general building-permit exemption.7

Sources

  1. 12-1-1: Title (Clinton), quoted and re-checked
  2. City of Clinton Building & Zoning (clintonillinois.com)
  3. 9-1-8: Building Permit Issuance, Approval Of Plans (Clinton), quoted and re-checked
  4. Permitting and Inspection FAQs, quoted and re-checked
  5. 77 Ill. Adm. Code 905.190 Installation Approval (Illinois statewide rule), quoted and re-checked
  6. 9-1-9: Occupancy; Utility Facilities And Roadways Required (Clinton), quoted and re-checked
  7. HB5913 Enrolled — Illinois Plumbing License Law amendment (Illinois statewide rule), quoted and re-checked
  8. 77 Ill. Admin. Code 920.130, Water Well Permit Requirements (Illinois statewide rule), quoted and re-checked
  9. 13-1-1: Adopted (Clinton), quoted and re-checked
  10. Building Codes and Regulations (Illinois statewide rule), quoted and re-checked
  11. Planning and Zoning, quoted and re-checked
  12. § 155.126 Permits Required, quoted and re-checked
  13. DeWitt-Piatt Bi-County Health Department (dewittpiatthealth.com)
  14. 77 Ill. Adm. Code 905.130 Human Waste Disposal (Illinois statewide rule), quoted and re-checked
  15. 9-1-3: Jurisdiction (Clinton), quoted and re-checked
  16. Highway Permits (Illinois statewide rule), quoted and re-checked
  17. Permit Program (Illinois statewide rule), quoted and re-checked
  18. Effective property tax rate: Bolthole Index county data

Written October 12, 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.

Answers from the rulebook for Clinton

Clinton’s own rules

  • Building permitLimited

    Building permits for subdivision improvements and multi-family, commercial, or industrial development inside Clinton city limits.

    • For subdivision lots, the final subdivision plat and public-improvement plans and specifications must be approved by the city council before permit issuance.
    • For multi-family, commercial, or industrial use, all requirements of Title 10 must be fulfilled before permit issuance.
    • The sources reviewed do not establish the general permit rule for every residential alteration or construction activity.
    “No building permit shall be issued providing for the improvement of any lot in a subdivision until the final plat of subdivision and the plans and specifications for the public improvements have been approved by the city council. (Ord. 869, 11-5-2001)”
  • Building code adoptedAdopted

    All property, buildings, and structures within Clinton city limits.

    • The adopted code is the International Building Code, 2000 edition, as amended by the City's additions, deletions, and amendments document.
    • The ordinance states that the code is filed in the city clerk's office.

    edition: 2000 (as amended by the City of Clinton additions, deletions and amendments)

    “For the purpose of establishing minimum regulations governing the conditions and maintenance of all property, building and structures in the city of Clinton, Illinois, that certain code known as the international building code, 2000 edition, as published by the International Code Council, Inc., and as amended by a document entitled city of Clinton, Illinois, additions, deletions and amendments to the international building code, 2000, which said code, together with the amendments referenced, has been and now is filed in the office of the city clerk and the same is hereby adopted and represented as fully as if set out at length herein, and the provisions thereof shall be controlling within the limits of the city of Clinton, Illinois.”
  • Local zoningPresent

    Zoning regulation inside Clinton city limits.

    “This title shall be known and may be cited as the CITY OF CLINTON ZONING ORDINANCE, and will be referred to herein as this title. (Ord. 867, 11-5-2001)”
  • Mandatory utility hookupConditional

    Structures in subdivisions approved for platting or replatting inside Clinton city limits.

    • Occupancy is barred until required utility facilities have been installed and made ready to service the property.
    • The rule also requires roadways providing access to the subject lot or lots to have been constructed.
    • The excerpt does not specify a distance threshold or separately identify water versus sewer.
    “Occupancy of any structure within any subdivision approved for platting or replatting will not be allowed until required utility facilities have been installed and made ready to service the property, and that roadways providing access to the subject lot or lots have been constructed. (Ord. 869, 11-5-2001)”
  • Subdividing landRegulated (with conditions)

    Subdivision of land within Clinton city limits and contiguous territory not more than 1.5 miles beyond the incorporated limits.

    • The subdivider or agent must submit the preliminary plan, final subdivision plat, and improvement plans to the planning commission.
    • The plat and plans and all related procedures must comply with Title 9.
    • The quoted jurisdiction provision also reaches contiguous territory up to 1.5 miles beyond city limits, but this claim is recorded for the city-limit portion.

    extra-territorial jurisdiction distance: <= 1.5 miles (contiguous territory beyond incorporated limits)

    “Wherever any subdivision of land shall hereafter be laid out within the incorporated limits of the city, or anywhere within contiguous territory not more than one and one-half (1 1/2) miles beyond the incorporated limits of the city, the subdivider thereof or his agent shall submit the preliminary plan, final subdivision plat and improvement plans to the planning commission.”
  • Permit processPartial

    Subdivision-related building-permit issuance inside Clinton city limits.

    • The final subdivision plat and public-improvement plans and specifications must be approved by the city council before a building permit may issue.
    • The reviewed sources do not establish the complete general permit application process.
    “No building permit shall be issued providing for the improvement of any lot in a subdivision until the final plat of subdivision and the plans and specifications for the public improvements have been approved by the city council. (Ord. 869, 11-5-2001)”

Still unanswered

We looked and could not find an official answer yet. Silence is not permission; ask Clinton or De Witt County directly.

  • Owner-builder exemption — Owner-builder exemptions inside Clinton city limits.
  • Inspections — Building inspections inside Clinton city limits.
  • Certificate of occupancy — Certificates of occupancy inside Clinton city limits.
  • Zoning districts — Published zoning districts and district schedules inside Clinton city limits.
  • Minimum dwelling size — Minimum dwelling size inside Clinton city limits.
19 more unanswered
  • Minimum lot size
  • Setbacks
  • Lot coverage
  • Building height
  • Living in an RV
  • Camping on your land
  • Tiny homes
  • Manufactured homes
  • Accessory dwellings
  • Who permits septic
  • Septic permit
  • Septic inspection
  • Off-grid sanitation
  • Well permit
  • Agricultural exemption
  • Driveway access
  • Building in a floodplain
  • Short-term rentals
  • Permit fees

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.

Unanswered questions are usually a sign that Clinton publishes no rule on the point, not that none exists. De Witt County’s page lists the county offices to call.

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