Bolthole Index

Lake County, Indiana

Zoning, building permits and septic rules in St. John Township, Indiana

St. John Township is a township in Lake County, Indiana. Septic permits inside St. John Township come from Lake County (Lake County Health Department, Environmental Health Division · (219) 755-3000). 10 rules below are quoted from official sources and independently re-checked, most recently on October 30, 2026. Rules for unincorporated land are on the Lake County page.

Answers from the rulebook for St. John Township

Rules another office applies inside St. John Township

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

  • Building permitLimited

    Unincorporated land inside St. John township; the county building permit requirement quoted applies to accessory buildings with toilets or bathroom plumbing

    • The quoted rule covers bathroom facilities in detached accessory garages and storage buildings, which require county building permit approval.
    • The Plan Commission page says the county issues building permits, but a general permit requirement for a new single-family home was not quoted, so this is limited rather than required.
    • Land inside the Town of St. John is governed by town rules, not recorded here.
    “issue building permits and conduct inspections. issue certificates of occupancy.”
  • InspectionsLimited

    Unincorporated land inside St. John township

    • The Plan Commission states that it conducts inspections in unincorporated Lake County; the page does not state which inspections are mandatory for a new home.
    • Incorporated areas are excluded.
    “issue building permits and conduct inspections. issue certificates of occupancy.”
  • Certificate of occupancyLimited

    Unincorporated land inside St. John township

    • The county issues certificates of occupancy in unincorporated Lake County, per its services list.
    • The page does not state when a certificate is required for a new home, so this is limited.
    “issue building permits and conduct inspections. issue certificates of occupancy.”
  • Local zoningVaries (with conditions)

    Land inside St. John township outside incorporated town limits. The Lake County UDO applies only to unincorporated Lake County; the Town of St. John's own zoning ordinance governs land inside its limits and is not recorded here as a township rule.

    • No St. John Township zoning ordinance was found on the township trustee site or in searches; the township has not been shown to adopt its own zoning, and no official no-zoning statement was located, so this is not recorded as absent.
    • The county Plan Commission states its jurisdiction covers unincorporated Lake County only.
    “jurisdiction authority extends to unincorporated lake county. no jurisdiction in incorporated areas.”
  • Zoning districtsPublished (with conditions)

    Zoning districts for unincorporated land inside St. John township

    • The county publishes an unincorporated zoning map and the UDO sets A-1, RR, R-1, R-2, R-3 and R-5 residential districts plus business and industrial districts.
    • District boundaries were not checked against the map for St. John township.
    “unincorporated lake county zoning map faqs calendar of events”
  • Who permits septicCounty (with conditions)

    Sewage disposal for land inside St. John township outside incorporated town limits, as referenced by the Lake County UDO to the Lake County Health Department

    • Sewage facilities must conform to standards approved by the Lake County Health Department, which the UDO names as the approving body.
    • Health Department approval may require larger minimum lot areas than the UDO.
    “all new and existing uses must provide water supply and sewage disposal facilities conforming to standards of design and location approved by the lake county health department.”
  • Off-grid sanitationLimited

    Private sewage disposal on land inside St. John township outside incorporated town limits

    • Sewage disposal must conform to Lake County Health Department-approved design and location standards.
    • No rule allowing a non-conforming private system was found.
    “all new and existing uses must provide water supply and sewage disposal facilities conforming to standards of design and location approved by the lake county health department.”
  • Mandatory utility hookupConditional

    A new use on land inside St. John township outside incorporated town limits, where central water or sewer infrastructure is nearby

    • The UDO says the health regulations may require connection to central water and sewer facilities when such infrastructure is located nearby.
    • No specific distance threshold was quoted.
    • Within the Town of St. John, town connection rules apply and were not researched here.
    “these regulations may, in some cases, impose larger minimum lot area requirements than this udo or require connection to central water and sewer facilities when such infrastructure is located nearby.”
  • Subdividing landRegulated (with conditions)

    Land divisions in unincorporated land inside St. John township

    • The county Plan Commission handles subdivision approvals and enforces the subdivision ordinance in unincorporated Lake County.
    • The UDO's minor subdivision section has a successive-application limit of 3 lots over 5 years; the page for the full subdivision rules was not opened.
    “zone changes, subdivision approvals, change of use permits, special exceptions and variances.”
  • Permit processPartial

    Building permit process for unincorporated land inside St. John township

    • The Plan Commission page lists building permits, inspections, and certificates of occupancy as county services and links to an online building permit application.
    • Fees, steps and forms were not opened; the process is only partly published on the page.
    “issue building permits and conduct inspections. issue certificates of occupancy.”

Still unanswered

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

  • Owner-builder exemption — Owner-builder exemption for a home inside St. John township
  • Building code adopted — Building code adopted for land inside St. John township
  • Living in an RV — Long-term RV occupancy on private land inside St. John township
  • Camping on your land — Temporary camping on private land inside St. John township
  • Tiny homes — Tiny home occupancy inside St. John township
9 more unanswered
  • Manufactured homes
  • Septic permit
  • Septic inspection
  • 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 St. John Township publishes no rule on the point, not that none exists. Lake County’s page lists the county offices to call.

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