Bolthole Index

St. Clair County, Illinois

Zoning, building permits and septic rules in Village of Lenzburg, Illinois

Village of Lenzburg is a village in St. Clair County, Illinois. Septic permits inside Village of Lenzburg come from St. Clair County (St. Clair County Health Department – Water & Private Sewage · 618-233-7769). 7 rules below are quoted from official sources and independently re-checked, most recently on November 2, 2026. Rules for unincorporated land are on the St. Clair County page.

Answers from the rulebook for Village of Lenzburg

Rules another office applies inside Village of Lenzburg

Village of Lenzburg 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 septicCounty (with conditions)

    Private sewage disposal systems on land inside Lenzburg village that are not connected to a public sewer, under the St. Clair County private sewage code

    • The code applies within St. Clair County; the captured text shows no exemption for incorporated villages, and no Lenzburg village sewage ordinance was found.
    • Where a sanitary sewer is available under section 19-2-4(e), the health department must refuse a septic permit (see utility_connection).
    “it shall be unlawful for any person to construct, alter or extend individual domestic sewage disposal systems within st. clair county unless he/she holds a valid permit issued by the health department”
  • Septic permitRequired

    Constructing, altering or extending a private sewage disposal system on land inside Lenzburg village under the St. Clair County code

    • Permit is issued by the health department to a homeowner and/or a St. Clair County licensed installation contractor.
    • All applications go to the health department; the fee is collected at application.
    • Permit is valid one year from issuance; the health department must act within fifteen days of receipt.
    • Soil evaluations follow the Illinois Department of Public Health private sewage disposal licensing act and code.
    • Routine cleaning, replacing septic tank covers or rodding inlets and outlets does not need a construction permit.
    “it shall be unlawful for any person to construct, alter or extend individual domestic sewage disposal systems within st. clair county unless he/she holds a valid permit issued by the health department”
  • Septic inspectionLimited

    Existing private sewage systems on land inside Lenzburg village, under the St. Clair County code

    • Operational inspection is discretionary for resale and refinancing ('may be conducted'), and requires an application to the health department.
    • Installers must notify the health department at least forty-eight (48) hours before starting work on a system.

    operational inspection fee: 300 USD

    “an operational inspection may be conducted on any private sewage disposal system which is part of a sale of property. or for refinancing any time an application for inspection is submitted to the health department.”
  • Off-grid sanitationLimited

    Non-sewered sanitation (private sewage system) on land inside Lenzburg village

    • Allowed only with a health department construction permit and compliance with the county private sewage code.
    • Systems built before the code are updated when they malfunction or a repair permit is needed.
    “private sewage disposal systems constructed prior to the effective date of this code shall be updated to comply with the requirements of this code when malfunction or failure occurs or a permit is required to repair or replace that system.”
  • Mandatory utility hookupConditional

    A new home on land inside Lenzburg village: septic is barred where public sanitary sewer is available under the county code; village sewer connection rules not verified

    • A sewer is deemed available when a sanitary sewer line is in place within any street, alley, right-of-way, or easement that adjoins or abuts the premises.
    • Where the improvement is not adjoining, a reasonable distance is not greater than three hundred (300) feet for a single-family residence, and the sewer connection must be practical and permitted by the controlling authority.

    sewer availability distance, single-family residence: <= 300 feet (commercial establishments, subdivisions and multi-family dwellings: 1,000 feet)

    “a sewer shall be deemed available when a sanitary sewer line is in place within any street, alley, right-of-way, or easement that adjoins or abuts the premises for which the permit is requested”
  • Permit feesPublished (with conditions)

    Septic construction permits for land inside Lenzburg village; county health fees only, not village building fees

    • Fee is collected at application and deposited in the county health department fund.
    • Operational inspection fee is also $300 per the code's inspection paragraph.

    initial construction permit fee (septic): 300 USD (plus nothing else stated in captured text)

    “there shall be a three hundred dollar ($300.00) fee charged for the initial construction permit, alteration or extension of an individual sewage system as approved by the health department.”
  • Permit processPartial

    Septic permit process for land inside Lenzburg village; the village building permit process was not found

    • Applications go to the county health department; the department acts within fifteen days of receipt.
    • Permit is valid one year from issuance, and the work must be notified 48 hours in advance.
    “all applications for permits granted under the provisions of this code shall be made to the health department.”

Still unanswered

We looked and could not find an official answer yet. Silence is not permission; ask Village of Lenzburg or St. Clair County directly.

  • Building permit — Building permits for construction inside Lenzburg village limits
  • Owner-builder exemption — Owner-builder construction inside Lenzburg village limits
  • Building code adopted — Construction inside Lenzburg village limits: which building code the village adopts
  • Inspections — Building inspections for construction inside Lenzburg village limits
  • Certificate of occupancy — Certificates of occupancy inside Lenzburg village limits
16 more unanswered
  • Local zoning
  • Zoning districts
  • Minimum dwelling size
  • Setbacks
  • Lot coverage
  • Building height
  • Living in an RV
  • Camping on your land
  • Tiny homes
  • Manufactured homes
  • Accessory dwellings
  • Well permit
  • Agricultural exemption
  • 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 Village of Lenzburg publishes no rule on the point, not that none exists. St. Clair County’s page lists the county offices to call.

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