Cass County, Indiana
Washington Township is a township in Cass County, Indiana. Septic permits inside Washington Township come from the county and state together. 11 rules below are quoted from official sources and independently re-checked, most recently on October 30, 2026. Rules for unincorporated land are on the Cass 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.
Land inside Washington township, which the Cass County zoning ordinance covers as unincorporated county land (no township zoning ordinance was located)
“this ordinance shall apply to all unincorporated land within cass county, except for those land areas under the jurisdiction of a city or town plan commission”
AG agricultural district lots inside Washington township, under the Cass County zoning ordinance
minimum lot area, no central sewage (AG): >= 43560 sq ft (without central sewage) · minimum lot area, with central sewage (AG): >= 24000 sq ft (with central sewage) · minimum lot width, no central sewage (AG): >= 150 ft (without central sewage) · minimum lot width, with central sewage (AG): >= 100 ft (with central sewage)
“1. minimum lot area (a) no central sewage with central sewage 43,560 24,000 43,560 20,000 36,000 14,000 24,000 6,000 34,000 10,000 34,000 10,000 34,000 10,000 40,000 24,000 130,680 130,680”
“1. minimum lot area (a) no central sewage with central sewage 43,560 24,000 43,560 20,000 36,000 14,000 24,000 6,000 34,000 10,000 34,000 10,000 34,000 10,000 40,000 24,000 130,680 130,680”
“1. minimum lot area (a) no central sewage with central sewage 43,560 24,000 43,560 20,000 36,000 14,000 24,000 6,000 34,000 10,000 34,000 10,000 34,000 10,000 40,000 24,000 130,680 130,680”
AG agricultural district structures inside Washington township, under the Cass County zoning ordinance
minimum front yard (AG): >= 50 ft · minimum side yard (AG): >= 20 ft · minimum rear yard (AG): >= 25 ft
“5. minimum front yard (b) 50 50 45 25 25 40 40 40 40”
“6. minimum side yard (b) 20 20 15 15 15 20 20 20 20”
R-1 suburban residential district lots inside Washington township, under the Cass County zoning ordinance
maximum lot coverage (R-1): <= 40 percent
“4. maximum lot coverage (c) 10 or 30* 30 40 80 80 50 50 50 50”
“4. maximum lot coverage (c) 10 or 30* 30 40 80 80 50 50 50 50”
Principal and accessory structures in any district of the Cass County zoning ordinance, on land inside Washington township
maximum height, principal structure: <= 35 ft (measured above average ground level; section 307 exceptions apply) · maximum height, accessory structure, one-story primary structure: <= 16 ft · maximum height, accessory structure, two-story or taller primary structure: <= 24 ft
“no principal structure in any district may be constructed, reconstructed, altered, or enlarged which exceeds 35 feet in height above average ground level.”
Onsite sewage systems inside Washington township: state residential rules (410 IAC 6-8.3) with permits issued by local health departments
“local health departments issue more than 15,000 permits per year for new systems”
Land divisions inside Washington township under the Cass County subdivision control ordinance
“subdivision of land may occur in any zoning district provided that all applicable standards of this ordinance and the cass county subdivision control ordinance are met.”
We looked and could not find an official answer yet. Silence is not permission; ask Washington Township or Cass 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. Cass 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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