Washington County, Illinois
Beaucoup Township is a township in Washington County, Illinois. Septic permits inside Beaucoup Township come from Washington County. 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 Washington County page.
Beaucoup 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 Beaucoup township, Washington County, Illinois, administered by the Washington County zoning office
“all construction in washington county requires a building permit including agricultural buildings!”
Zoning districts applying on unincorporated land inside Beaucoup township, Washington County, Illinois
“the three most common districts and their minimum lot sizes are: ag-40 acres, r-1 (rural residential) 2 acres, and r-2 (urban residential) 1 acre.”
Lots in the AG (agricultural) district on unincorporated land inside Beaucoup township, Washington County, Illinois
minimum lot size: >= 40 acres (existing homesite since 1980, agriculturally exempt buyer, and pre-1980 grandfathered lots are excepted)
“the three most common districts and their minimum lot sizes are: ag-40 acres, r-1 (rural residential) 2 acres, and r-2 (urban residential) 1 acre.”
“the three most common districts and their minimum lot sizes are: ag-40 acres, r-1 (rural residential) 2 acres, and r-2 (urban residential) 1 acre.”
Private sewage disposal systems serving land inside Beaucoup township, Washington County, Illinois, handled by the Washington County Health Department
“environmental: routine inspection and complaint investigation of: food service establishments and providers, private sewage and water well systems”
Division of AG-district land on unincorporated land inside Beaucoup township, for purposes of avoiding a rezoning
“another exception to this process is if the buyer, the one building on the property is agriculturally exempt (actively engaged in agriculture and owns at least 40 acres).”
Division of parcels on unincorporated land inside Beaucoup township, Washington County, Illinois
“the actual division of a parcel is not regulated by the county.”
Zoning certificate and building permit fees for construction on unincorporated land inside Beaucoup township, Washington County, Illinois
zoning certificate application fee: 100 USD (made out to Washington County Treasurer) · building permit fee: 100 USD (applies to construction over 150 square feet)
“a fee of $100 is charged if over 150 square feet.”
Construction on unincorporated land inside Beaucoup township, Washington County, Illinois
“before beginning any construction, a certificate of zoning compliance must be obtained from the zoning administrator.”
We looked and could not find an official answer yet. Silence is not permission; ask Beaucoup Township or Washington 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 Beaucoup Township publishes no rule on the point, not that none exists. Washington County’s page lists the county offices to call.
Off-grid gear
Going off-grid in Beaucoup Township means bringing your own water and power. The kit we’d start with:
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