Bolthole Index

Montgomery County, Illinois

Zoning, building permits and septic rules in Irving Township, Illinois

Irving Township is a township in Montgomery County, Illinois. Septic permits inside Irving Township come from the county and state together. 5 rules below are quoted from official sources and independently re-checked, most recently on October 29, 2026. Rules for unincorporated land are on the Montgomery County page.

Answers from the rulebook for Irving Township

Rules another office applies inside Irving Township

Irving Township does not set these itself; the county, a health district or the state does, and they apply to every address inside its limits.

  • Who permits septicMixed (with conditions)

    Private sewage (septic) systems on land inside Irving township, Montgomery County, Illinois. The Montgomery County Health Department (Hillsboro) issues the sewage disposal permit under the county sewage ordinance and the state Private Sewage Disposal Licensing Act. The county scope is recorded because the township is not the rule-maker; no page located states the health department's service area in words naming Irving township.

    • The permit form requires installation in conformance with the state Private Sewage Disposal Licensing Act and code and with the Montgomery County sewage treatment and disposal ordinance. The county ordinance text was not located or opened.
    • State law lets the Illinois Department of Public Health designate county health departments as its agents in administering the Act and code.
    • State Act section 10(a) does not prohibit enforcement of local ordinances that establish a system at least equal to state regulation and inspection.
    • No Irving township septic ordinance was located.
    “The Department administers and enforces the Private Sewage Disposal Program”
  • Septic permitRequired

    New or altered private sewage disposal systems on land inside Irving township, Montgomery County, Illinois; permit issued by the Montgomery County Health Department

    • The form is titled Application for Sewage Disposal Permit and records the health department permit; a statement requiring a permit before installation was not located verbatim.
    • Permit expires one year from date of issue.
    • Installer must be licensed under the state act; the form has a licensed-installer block.
    • The form is dated 2016; current application and rules were not verified.
    • No Irving township-issued septic permit was located.

    permit validity: 12 months

    “All new and renovated private sewage disposal systems require a permit”
  • Septic inspectionRequired

    Installation of a private sewage disposal system on land inside Irving township, Montgomery County, Illinois

    • The inspection is requested from the Montgomery County Health Department; the form says no portion of the system may be covered before the inspection and final approval.
    • Final inspection and approval or disapproval is recorded by the health department on the form.
    • Form is dated 2016; current inspection procedure not verified.

    inspection request lead time: >= 2 working days (before beginning of installation)

    “To request an inspection call 217-532-2001 two working days prior to beginning of installation.”
  • Permit feesPublished (with conditions)

    Sewage disposal permit application fee for a septic system on land inside Irving township, Montgomery County, Illinois

    • Fee shown on the 2016 county health department form; the current fee schedule was not located and may differ.
    • No township permit fee was located.

    sewage permit application fee: 50 USD (shown on 2016 form; current schedule not verified)

    “montgomery county health department permit # $50 application fee date of issue date of pre-eval”
  • Permit processPartial

    Septic permit process for land inside Irving township, administered by the Montgomery County Health Department

    • The form shows application, pre-evaluation, licensed installer, inspection request and final approval steps.
    • No township or county step for zoning or building clearance was located, so the process is partial.
    • Form is dated 2016; current process not verified.
    “FINAL INSPECTION AND APPROVAL / DISAPPROVAL BY:”

Still unanswered

We looked and could not find an official answer yet. Silence is not permission; ask Irving Township or Montgomery County directly.

  • Building permit — Building permit requirement for new residential construction inside Irving township
  • Owner-builder exemption — Owner-builder exemption from permits or licensing for work inside Irving township
  • Building code adopted — Building code adopted for new construction inside Irving township
  • Inspections — Building inspection requirement for construction inside Irving township
  • Certificate of occupancy — Certificate of occupancy requirement for buildings inside Irving township
20 more unanswered
  • Local zoning
  • Zoning districts
  • Minimum dwelling size
  • Minimum lot size
  • Setbacks
  • Lot coverage
  • Building height
  • Living in an RV
  • Camping on your land
  • Tiny homes
  • Manufactured homes
  • Accessory dwellings
  • Off-grid sanitation
  • Well permit
  • Mandatory utility hookup
  • Agricultural exemption
  • Subdividing land
  • Driveway access
  • Building in a floodplain
  • Short-term rentals

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 Irving Township publishes no rule on the point, not that none exists. Montgomery County’s page lists the county offices to call.

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