Bolthole Index

Madison County, Illinois

Zoning, building permits and septic rules in St. Jacob Township, Illinois

St. Jacob Township is a township in Madison County, Illinois. Septic permits inside St. Jacob Township come from Madison County (Madison County Planning & Development — Private Sewage Permits & Inspections · (618)296-4663). 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 Madison County page.

Answers from the rulebook for St. Jacob Township

Rules another office applies inside St. Jacob Township

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

  • Local zoningPresent (with conditions)

    Unincorporated land in St. Jacob Township; this does not establish zoning authority for the incorporated Village of St. Jacob.

    • The cited County Board record identifies an agricultural-zoned parcel in St. Jacob Township subject to the Madison County Zoning Ordinance.
    “This is located in an “A” Agricultural District in St. Jacob Township along Cypress Road, St. Jacob, Illinois, County Board District #4, PIN#s 05-1-23-17-00-000-016 & 05-1-23-20-00-000-002; and,”
  • Zoning districtsPublished (with conditions)

    Mapped County zoning for unincorporated land in St. Jacob Township.

    • The official map says it was created from recorded sources and is subject to revision.
    • The map date is January 9, 2007, with update October 22, 2007.
    “Date of map: 9th January, 2007 [...] Zoning "A" Agricultural District "B-2" General Business District "B-4" Wholesale Business District "M-1" Limited Manufacturing "R-1" Single-Family Dwelling District "R-2" Single-Family Dwelling District "R-3" Single-Family Dwelling District "R-4" Single-Family Dwelling District [...] Note: This map was created from recorded sources and is subject to revision. [...] Update of map: 22nd October, 2007”
  • Who permits septicCounty (with conditions)

    Private sewage disposal systems in unincorporated St. Jacob Township.

    • The County Building and Zoning Department conducts the cited compliance inspection.
    “The Department is authorized and directed to make inspections as are necessary to determine satisfactory compliance with the chapter. Upon receipt of a notification by the applicant, a designated member of the Department of Building and Zoning of the county shall, within two days, inspect the installed or partially installed private sanitation system of the person, firm, corporation or organization.”
  • Septic inspectionRequired

    Individual sewage disposal systems installed by a homeowner for the homeowner's personal residence in unincorporated St. Jacob Township.

    • The system may not be covered or placed in operation until inspected and written approval is issued by the Department.
    • The owner or occupant must provide Department access at reasonable times.
    • The Department may inspect during construction.
    “An individual sewage disposal system which has been installed by a home owner for his or her personal residence shall not be covered or placed in operation until the installation shall be inspected and written approval of the system shall have been issued by the Department.”
  • Well permitRequired

    Construction or deepening of water wells in unincorporated St. Jacob Township.

    • A permit must first be obtained from the Health Department.
    • A non-community water system requires an Illinois Department of Public Health permit.
    • For closed-loop wells, the application must be signed by a registered contractor and include the specified drawing.
    “No water well shall be constructed or deepened except in accordance with this chapter, and it shall be unlawful to proceed with such work unless a permit has first been obtained from the Health Department.”

Still unanswered

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

  • Building permit — Residential construction in unincorporated St. Jacob Township.
  • Owner-builder exemption — Owner-built residences in unincorporated St. Jacob Township.
  • Building code adopted — Building-code adoption for land in unincorporated St. Jacob Township.
  • Inspections — Building inspections in unincorporated St. Jacob Township.
  • Certificate of occupancy — Residential occupancy in unincorporated St. Jacob Township.
20 more unanswered
  • 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
  • Septic permit
  • Off-grid sanitation
  • Mandatory utility hookup
  • Agricultural exemption
  • Subdividing land
  • Driveway access
  • Building in a floodplain
  • Short-term rentals
  • Permit fees
  • Permit process

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

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