Washington County, Illinois
Du Bois Township is a township in Washington County, Illinois. 5 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.
Du Bois 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 in unincorporated Du Bois township (outside the village of Du Bois)
“all construction in washington county requires a building permit including agricultural buildings!”
Land in unincorporated Du Bois township (outside the village of Du Bois). This is Washington County's zoning ordinance, not a Du Bois township ordinance. No Du Bois township-adopted zoning ordinance was located.
“after the effective date of this revised ordinance no signs shall be erected in the unincorporated areas of the county except in conformity with the requirements of this section”
Mobile and manufactured homes on private land in unincorporated Du Bois township
“thus, for example, it shall generally be unlawful to place a mobile home on any lot on which there is an existing dwelling.”
Agricultural exemption for structures built on land in unincorporated Du Bois township
minimum land ownership for agricultural exemption: >= 40 acres (zoning administrator may grant up to 5% variance (section 4-13.1))
“to obtain an agricultural exemption the applicant must provide proof that he or she own a minimum of forty (40) acres and must complete a certificate of agricultural exemption, at the washington county zoning office, stating that said structure being built is solely for agricultural purposes.”
Subdivision of land in unincorporated Du Bois township
“it shall be unlawful for the county recorder of deeds of washington county to accept for recording any plat of a subdivision within the unincorporated area of washington county until the plat has been approved as required herein”
We looked and could not find an official answer yet. Silence is not permission; ask Du Bois 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 Du Bois 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 Du Bois Township means bringing your own water and power. The kit we’d start with:
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