Spencer County, Indiana
Carter Township is a township in Spencer County, Indiana. Septic permits inside Carter Township come from Spencer County (Spencer County Health Department · 812-649-4441). 9 rules below are quoted from official sources and independently re-checked, most recently on October 30, 2026. Rules for unincorporated land are on the Spencer County page.
Carter Township does not set these itself; the county, a health district or the state does, and they apply to every address inside its limits.
New construction in Spencer County administered by the Spencer County Plan Commission & Building Inspector; applies inside Carter township if the county issues permits there (not verified).
new construction permit threshold: > 2000 USD (alterations over $5,000 and electrical, plumbing or mechanical work over $750 have separate thresholds)
“you should obtain a building permit before beginning any new construction of a building or structure the cost of which exceeds $2,000”
Spencer County zoning (zoning map and schedule of uses) administered by the Spencer County Plan Commission; applies inside Carter township only where no township zoning exists and the land is governed by county zoning (not verified for Carter township).
“definitions for spencer county zoning map (a) agriculture --- the areas zoned agricultural be preserved for agricultural uses”
Spencer County zoning districts (A, R-1, R-2, B-1, B-2, B-3, I-1, I-2) on the county zoning map, applicable inside Carter township only where county zoning applies (not verified).
“(r-1) residential zone --- this area is preserved for the use of single family dwellings.”
Building setbacks from state and county road right-of-way lines for construction in Spencer County administered by the county Plan Commission; applies inside Carter township if the county permit process applies there (not verified).
setback from secondary road (county road) right-of-way: 60 feet · setback from primary road (blacktop, highway) right-of-way: 70 feet · setback from arterial highway right-of-way: 75 feet · setback from local (residential) road right-of-way: 30 feet
“required setbacks from state or county right-of-way lines: secondary road (county road) 60' primary road (blacktop, highway) 70' arterial highway 75' local (residential) 30'”
“accessory buildings must be at least 5' from the back property line, and 10' from the side property line.”
Onsite sewage disposal for new construction in Spencer County, run by the Spencer County Health Department; applies inside Carter township if within its service area (not verified).
“permits, consultations and inspections are provided for new construction and replacement of onsite sewage disposal systems.”
New driveways in Spencer County; applies inside Carter township on county roads (state highways are handled by INDOT, not the county).
“if constructing a new driveway off a county road, you must contact the county garage (812) 362-8331”
New structures in a mapped floodplain in Spencer County; applies inside Carter township only where the parcel is in a mapped floodplain.
minimum elevation above base flood elevation: >= 2 feet
“if the property is in the floodplain, you will need an elevation certificate showing the new structure will be at least 2' above the base flood elevation.”
Building permit application and posting process in Spencer County administered by the Plan Commission & Building Inspector; applies inside Carter township if the county permits there (not verified).
construction start deadline after permit issued: <= 90 days (permit does not expire while reasonable progress is being made)
“construction must start within 90 days of the permit being issued.”
We looked and could not find an official answer yet. Silence is not permission; ask Carter Township or Spencer County directly.
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 Carter Township publishes no rule on the point, not that none exists. Spencer County’s page lists the county offices to call.
Off-grid gear
Going off-grid in Carter Township means bringing your own water and power. The kit we’d start with:
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