Morgan County, Indiana
Harrison Township is a township in Morgan County, Indiana. Septic permits inside Harrison Township come from Morgan County (Morgan County Health Department, Environmental Health (Septic Division) · 765-342-6621). 23 rules below are quoted from official sources and independently re-checked, most recently on October 30, 2026. Rules for unincorporated land are on the Morgan County page.
Harrison 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 and altered structures on land inside Harrison township that is under the Morgan County UDO
“an ilp, also known as a building permit, shall be required for the erection, alteration, or modification of all structures within the jurisdiction”
Land inside Harrison township, Morgan County, that is not subject to the zoning jurisdiction of Martinsville, Monrovia, Mooresville or Morgantown. The county UDO is the zoning rule there; no Harrison township zoning ordinance was found.
“the udo shall apply to all land within the jurisdiction of the morgan county advisory plan commission that are not subject to the zoning jurisdiction of the governmental units of martinsville, monrovia, mooresville, and morgantown.”
Zoning districts applying to land inside Harrison township under the county UDO
“property that has not been specifically included within a district is hereby declared to be in the general agriculture (ag) district”
Dwellings in the general agriculture (AG) district on land inside Harrison township
minimum living area: >= 950 sq ft
“minimum living area 950 sq ft n/a minimum width of primary structure 18 feet n/a”
“minimum living area 950 sq ft n/a minimum width of primary structure 18 feet n/a”
Single-family dwelling lot in the rural residential (RR) district on land inside Harrison township
minimum lot area, single-family, with sewer: >= 20000 sq ft · minimum lot area, single-family, without sewer: >= 1 acre (subject to health department approval)
“with sewer 20,000 sq ft 1 acre without sewer2 1 acre 2 acres”
Residential structures in the general agriculture (AG) district on land inside Harrison township
front yard setback, residential: >= 35 feet · side yard setback, primary structure: >= 25 feet · side yard setback, accessory structure: >= 15 feet · rear yard setback, primary structure: >= 30 feet · rear yard setback, accessory structure: >= 15 feet
“35 feet 50 feet primary structure 25 feet 25 feet accessory structure 15 feet 20 feet primary structure 30 feet 30 feet accessory structure 15 feet 20 feet”
“35 feet 35 feet primary structure 20 feet 25 feet accessory structure 10 feet 15 feet primary structure 25 feet 30 feet accessory structure 10 feet 15 feet”
Impervious surface on residential lots in the general agriculture (AG) district on land inside Harrison township
maximum impervious surface coverage: <= 50 percent
“maximum impervious surface coverage 50% 50%”
“maximum impervious surface coverage 50% 50%”
Residential structures in the general agriculture (AG) district on land inside Harrison township
maximum height, primary structure, residential: <= 40 feet (agriculture land uses exempt) · maximum height, accessory structure, residential: <= 30 feet (agriculture land uses exempt)
“primary structure 40 feet 50 feet1 accessory structure 30 feet 50 feet1”
“primary structure 35 feet 50 feet1 accessory structure 25 feet 50 feet1”
Tiny homes used as a primary dwelling or accessory dwelling inside Harrison township under the UDO
minimum living area, primary dwelling (AG and RR): >= 950 sq ft · minimum living area, accessory dwelling: >= 220 sq ft
“minimum living area 950 sq ft n/a minimum width of primary structure 18 feet n/a”
Manufactured homes on land inside Harrison township under the Morgan County UDO
“a manufactured home is permitted as an accessory dwelling”
Accessory dwelling units on land inside Harrison township under the UDO
maximum accessory dwellings per parcel: 1 count
“only one (1) accessory dwelling shall be permitted per parcel.”
Onsite sewage (septic) systems for structures inside Harrison township; the Morgan County Health Department administers septic permits
“residential onsite sewage systems, in state law 410 iac 6-8-3 morgan county septic ordinance”
Septic system serving a structure inside Harrison township
“no ilp shall be issued for a structure that is served by a septic system unless a septic permit has been issued by the morgan county health department”
Non-municipal water and sanitation for dwellings in the RR district in unincorporated Morgan County, including land inside Harrison township
“municipal water and sewer are not required for this district, but all nonmunicipal water and/or sewer shall be approved by the morgan county health department and/or idoh.”
Single-family homes in the rural residential (RR) district in unincorporated Morgan County, which includes land inside Harrison township under the UDO
municipal water required: no · municipal sewer required: no
“rr utility standards municipal water required no municipal sewer required no”
Agricultural uses on land inside Harrison township under the UDO
“all development or modification of property for uses other than agricultural uses (excluding confined feeding operations), single-family, or two-family residential require development plan approval”
Driveway access for an accessory dwelling on land inside Harrison township
“the accessory dwelling shall utilize an existing, permitted driveway that serves the primary dwelling”
Short-term rental of a single-family home on land inside Harrison township, AG district
“residential uses • dwelling, single-family • short-term rental”
Permit process for structures on land inside Harrison township under the Morgan County UDO
“no building or other structure shall be erected, moved, added to, or structurally altered unless the morgan county plan commission office has issued an ilp”
We looked and could not find an official answer yet. Silence is not permission; ask Harrison Township or Morgan 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 Harrison Township publishes no rule on the point, not that none exists. Morgan County’s page lists the county offices to call.
Off-grid gear
Going off-grid in Harrison Township means bringing your own water and power. The kit we’d start with:
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