Bolthole Index

Fayette County, Illinois

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

Avena Township is a township in Fayette County, Illinois. Septic permits inside Avena 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 Fayette County page.

Answers from the rulebook for Avena Township

Rules another office applies inside Avena Township

Avena 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 disposal systems serving land inside Avena Township; Fayette County Health Department serves Fayette County citizens.

    • The Illinois Department of Public Health regulates installation of private sewage systems.
    • The Fayette County Health Department Environmental Health program provides septic-system permits and inspections for Fayette County citizens.
    “regulates the installation [...] local health agencies in Illinois [...] also review sewage disposal system construction plans”
  • Septic permitRequired

    Installation of a private sewage disposal system inside Avena Township.

    • A Private Sewage Disposal System Plan Review Application and $75.00 application fee must be submitted before installation.
    • A permit is granted if the proposed system meets Illinois Department of Public Health Private Sewage Disposal Licensing Act and Code requirements.
    • Applicant must give 48-hour notice to the Division of Environmental Health before installation.

    application fee: 75 USD (Private sewage disposal system plan-review application) · pre-installation notification: 48 hours (Notification to the Division of Environmental Health before installation)

    “Before a private sewage disposal system can be installed, a Private Sewage Disposal System Plan Review Application and a $75.00 application fee must be submitted. If the proposed system meets the requirements of the Illinois Department of Public Health Private Sewage Disposal Licensing Act and Code, the applicant will be granted a permit. It is then the responsibility of the applicant to give a 48-hour notification to the Division of Environmental Health before installation.”
  • Off-grid sanitationLimited

    Private sewage disposal systems, including systems serving land inside Avena Township.

    • The rule covers systems with no surface discharge and systems discharging treated effluent up to 1,500 gallons per day to ground surface.
    • Plans are reviewed and approved before construction.

    surface-discharge volume: <= 1500 gallons per day (Treated effluent discharged to ground surface)

    “review and approve plans [...] before construction”
  • Permit feesPublished (with conditions)

    Private sewage disposal system plan-review applications inside Avena Township.

    • The fee is due before a private sewage disposal system can be installed.
    • Permit issuance depends on compliance with the Illinois Department of Public Health Private Sewage Disposal Licensing Act and Code.

    private sewage disposal system plan-review application fee: 75 USD

    “Before a private sewage disposal system can be installed, a Private Sewage Disposal System Plan Review Application and a $75.00 application fee must be submitted. If the proposed system meets the requirements of the Illinois Department of Public Health Private Sewage Disposal Licensing Act and Code, the applicant will be granted a permit.”
  • Permit processPublished (with conditions)

    Private sewage disposal system installation inside Avena Township.

    • Submit the plan-review application and $75.00 application fee before installation.
    • Permit is contingent on compliance with the Illinois Department of Public Health Private Sewage Disposal Licensing Act and Code.
    • Give the Division of Environmental Health 48-hour notification before installation.

    pre-installation notification: 48 hours (Notification to Division of Environmental Health)

    “Before a private sewage disposal system can be installed, a Private Sewage Disposal System Plan Review Application and a $75.00 application fee must be submitted. If the proposed system meets the requirements of the Illinois Department of Public Health Private Sewage Disposal Licensing Act and Code, the applicant will be granted a permit. It is then the responsibility of the applicant to give a 48-hour notification to the Division of Environmental Health before installation.”

Still unanswered

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

  • Building permit — New residential construction inside Avena Township.
  • Owner-builder exemption — Owner-built residential construction inside Avena Township.
  • Building code adopted — Residential construction inside Avena Township.
  • Inspections — Residential building work inside Avena Township, excluding private-sewage and well inspections addressed separately.
  • Certificate of occupancy — Residential occupancy inside Avena Township.
18 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
  • 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 Avena Township publishes no rule on the point, not that none exists. Fayette County’s page lists the county offices to call.

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