Franklin County, Indiana
Posey Township is a township in Franklin County, Indiana. Septic permits inside Posey Township come from Franklin County (Franklin County Health Department · 765-647-4322). 15 rules below are quoted from official sources and independently re-checked, most recently on October 30, 2026. Rules for unincorporated land are on the Franklin County page.
Posey Township does not set these itself; the county, a health district or the state does, and they apply to every address inside its limits.
Structures and land-use changes in unincorporated Posey Township; zoning improvement location permit issued by the Franklin County Area Plan Commission executive director
“no structure may be erected, altered or placed, or no use of land may be changed, unless an improvement location permit has been obtained from the executive director by the owner(s) of the property or by his agent.”
Single-family homes in A-1 prime agriculture district in unincorporated Posey Township
minimum ground floor area, one-story single-family home: >= 900 sq. ft. · minimum ground floor area, two-story single-family home: >= 800 sq. ft. (two-story total 1440 sq. ft.)
“single-family homes: one story: 900 sq. ft. (ordinance # 2014-19, passed on 11/24/2014).”
“single-family homes: one story: 1440 sq. ft. two story:800 sq. ft.”
R-1 single-family residence district lots in unincorporated Posey Township
minimum lot area with sewer: >= 10000 sq. ft. (where sewer is utilized) · minimum lot area without sewer: >= 1 acre (or larger if needed for two septic fields, where no sewer is utilized)
“where sewer is utilized: 10,000 sq. ft.”
“1 acre, or larger if needed for 1 2 septic fields where no sewer is utilized”
A-1 prime agriculture district lots in unincorporated Posey Township
minimum front yard depth: >= 50 feet · minimum side yard width: 10 % of minimum lot width · minimum rear yard depth: >= 15 feet
“6. minimum width of side yard: 10% of minimum lot width 7. minimum depth of rear yard: 15 feet”
“5. required yards: minimum depth of front yard: 35 feet minimum width of side yard: 10% of minimum lot width minimum depth of rear yard: 15 feet”
A-1 prime agriculture district lots in unincorporated Posey Township
maximum lot coverage: <= 20 % of lot
“4. maximum lot coverage: 20% of lot 5. minimum depth of front yard: 50 feet”
“4. maximum lot coverage: 25% of lot 5. required yards: minimum depth of front yard”
A-1 prime agriculture district structures in unincorporated Posey Township
maximum building height: <= 35 feet
“8. maximum building height: 35 feet 9. see section 80.08 additional requirements, including yard and setback, height, parking, and fences.”
Manufactured or mobile homes as a dwelling in A-1 prime agriculture districts in unincorporated Posey Township; R-1 and R-3 also list manufactured homes as permitted uses
“a. permitted uses. 1. agricultural use 2. single-family dwelling 3. manufactured or mobile home”
Septic, sewer and water rules for land inside Posey Township outside incorporated towns
“sewer, septic, and water regulations shall be per franklin county health department, and all other current state and federal regulations.”
Farm buildings in unincorporated Posey Township used for agriculture for commercial gain
“where agriculture is pursued for commercial gain, farming operations are exempt from the restrictions and regulations of the building code”
Division of land into a subdivision in unincorporated Posey Township
“no plat or replat of a division of land resulting in a subdivision shall be filed with the county auditor and recorded by the county recorder unless it has first been granted final approval by the franklin county area plan commission”
Improvement location permit process for land in unincorporated Posey Township
“no structure may be erected, altered or placed, or no use of land may be changed, unless an improvement location permit has been obtained from the executive director by the owner(s) of the property or by his agent.”
We looked and could not find an official answer yet. Silence is not permission; ask Posey Township or Franklin 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 Posey Township publishes no rule on the point, not that none exists. Franklin County’s page lists the county offices to call.
Off-grid gear
Going off-grid in Posey Township means bringing your own water and power. The kit we’d start with:
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