Decatur County, Indiana
Washington Township is a township in Decatur County, Indiana. Septic permits inside Washington Township come from Decatur County (Decatur County Health Department, Environmental Health · (812) 663-8301). 7 rules below are quoted from official sources and independently re-checked, most recently on October 30, 2026. Rules for unincorporated land are on the Decatur County page.
Washington 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 on unincorporated land inside Washington township, Decatur County, Indiana, outside the City of Greensburg, handled by the county Area Plan Office.
“the office is responsible for the following: zoning of property variances special exceptions pond permits new addresses address changes survey approvals building permits electrical permits sign permits building inspections”
Construction inside unincorporated Washington township, Decatur County, Indiana, outside the City of Greensburg.
“the office is responsible for the following: zoning of property variances special exceptions pond permits new addresses address changes survey approvals building permits electrical permits sign permits building inspections”
Unincorporated land inside Washington township, Decatur County, Indiana, outside the City of Greensburg. Zoning is administered by the county Area Plan Office, not by the township.
“the area plan office covers all of decatur county (except the city of greensburg). the office is responsible for the following: zoning of property”
Residential on-site sewage systems on land in Washington township, Decatur County, Indiana, administered by the Decatur County Health Department (county-wide service).
“environmental health includes permitting and inspecting on-site sewage systems (oss) and food facilities”
New residential on-site sewage systems on land in Washington township, Decatur County, Indiana.
septic permit fee: 600 USD · septic repair, replacement, or expansion fee: 300 USD
“septic permits: $600.00 septic repair, replacement, or expansion: $300.00”
Residential on-site sewage systems in Washington township, Decatur County, Indiana, before construction and during installation.
“the decatur county environmentalists inspect all residential on-site sewage systems (oss) sites in the county before construction and during installation.”
Septic permit and septic repair fees for on-site sewage systems in Washington township. Building permit fees were not located.
septic permit fee: 600 USD
“septic permits: $600.00 septic repair, replacement, or expansion: $300.00”
We looked and could not find an official answer yet. Silence is not permission; ask Washington Township or Decatur 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 Washington Township publishes no rule on the point, not that none exists. Decatur County’s page lists the county offices to call.
Off-grid gear
Going off-grid in Washington Township means bringing your own water and power. The kit we’d start with:
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