Bolthole Index

Sullivan County, Indiana

Zoning, building permits and septic rules in Cass Township, Indiana

Cass Township is a township in Sullivan County, Indiana. Septic permits inside Cass Township come from Sullivan County (Sullivan County Health Department · (812) 268-0224). 6 rules below are quoted from official sources and independently re-checked, most recently on October 30, 2026. Rules for unincorporated land are on the Sullivan County page.

Answers from the rulebook for Cass Township

Rules another office applies inside Cass Township

Cass 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 code adoptedAdopted

    Indiana building rules (675 IAC 13, 14, 16, 17, 18, 19, 20 and 22) as they apply inside Cass township, Sullivan County, Indiana

    • The rule says these building rules are to be enforced at the local level of government under IC 36-7-2-9; it does not name the enforcing office for Cass township.
    • Political subdivisions may adopt these rules by reference into local building codes by ordinance under 675 IAC 12-10-4(a); no Cass township or Sullivan County local building code was found.
    “building rules adopted by the commission in 675 iac 13, 675 iac 14, 675 iac 16, 675 iac 17, 675 iac 18, 675 iac 19, 675 iac 20, and 675 iac 22 are collectively a code of building laws required to be enforced at the local level of government under ic 36-7-2-9.”
  • Who permits septicCounty (with conditions)

    Residential onsite sewage (septic) systems in Cass township, Sullivan County, Indiana, permitted by the Sullivan County Health Department

    • The procedure is a Sullivan County Health Department procedure and does not name Cass township; the township coverage rests on the health department handling residential septic systems for Sullivan County.
    • The document is dated 1/28/2019 in its footer; the current fee, forms and contact have not been confirmed on a newer official page.
    • The procedure cites Indiana rule 410 IAC 6-8.3 for residential systems, but that rule was not opened and is not relied on here.
    “please contact the sullivan county health department at (812) 268-0224 with any questions.”
  • Septic permitRequired

    Installing, repairing, replacing or altering a residential onsite sewage system inside Cass township, Sullivan County, Indiana

    • The permit is issued only after the soils analysis, application, installation plans and health department review are complete.
    • The permit must be kept at the site during all phases of system installation.
    • Responsibility for obtaining the permit rests with the property owner, though contractors often do the work.
    • The document is dated 1/28/2019; current requirements not confirmed.
    “it is ultimately the responsibility of the property owner to ensure that an onsite permit is obtained before an onsite system is installed, repaired, replaced and/or altered”
  • Septic inspectionRequired

    Septic system installation inspection inside Cass township, Sullivan County, Indiana

    • Call the health department before breaking ground.
    • Schedule the inspection 2-5 days in advance; the county has one inspector.
    • The system must be inspected and given final approval before it is used (property owner responsibility, per the same note).
    • The document is dated 1/28/2019; current inspection practice not confirmed.
    “you must call the sullivan county health department before breaking ground.”
  • Permit feesPublished (with conditions)

    Residential septic permit fee for work inside Cass township, Sullivan County, Indiana

    • The fee is due when the installation plans are approved and the permit is issued.
    • The fee is taken from a procedure dated 1/28/2019; the current fee is not confirmed on a newer official page.
    • Only the septic permit fee is published here; building permit fees were not found.

    septic permit fee: 100 USD (due when installation plans are approved; from 2019-dated county procedure)

    “a permit fee will be due at this time ($100).”
  • Permit processPartial

    Residential septic permit process for work inside Cass township, Sullivan County, Indiana; no building permit process was found

    • Steps: soils analysis by an IRSS-certified soil scientist; county onsite application with floor plans for new sites; health department sends minimum requirements; designer submits installation plans; plan review and possible site visit; permit issued on approval.
    • The published process covers septic only; the building permit process was not found.
    • The document is dated 1/28/2019; current forms not confirmed.
    “contact an irss certified soil scientist and set up an appointment for soils analysis.”

Still unanswered

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

  • Building permit — Building permit requirement for new dwellings inside Cass township, Sullivan County, Indiana
  • Owner-builder exemption — Owner-builder exemption for residential construction inside Cass township, Sullivan County, Indiana
  • Inspections — Building inspections for new dwellings inside Cass township, Sullivan County, Indiana
  • Certificate of occupancy — Certificate of occupancy for new dwellings inside Cass township, Sullivan County, Indiana
  • Local zoning — Whether Cass township, Sullivan County, Indiana has adopted its own zoning ordinance
19 more unanswered
  • 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 Cass Township publishes no rule on the point, not that none exists. Sullivan County’s page lists the county offices to call.

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