Clinton County, Illinois
Carlyle Township is a township in Clinton County, Illinois. Septic permits inside Carlyle Township come from Carlyle Township. 12 rules below are quoted from official sources and independently re-checked, most recently on October 29, 2026. Rules for unincorporated land are on the Clinton County page.
Carlyle Township does not set these itself; the county, a health district or the state does, and they apply to every address inside its limits.
Residential construction on land inside Carlyle township outside incorporated municipalities, issued by the Clinton County Zoning Department
“Application is hereby made for a Certificate of Zoning Compliance, as required under the ZONING ORDINANCE OF CLINTON COUNTY”
Land inside Carlyle township outside incorporated municipalities, under the Clinton County Zoning Ordinance (not Carlyle township's own ordinance)
“LOT SIZE, SETBACK AND HEIGHT RESTRICTIONS BY DISTRICT SECTION 40-3-6”
Land inside Carlyle township outside incorporated municipalities, agricultural 'A' district under Clinton County Zoning Ordinance section 40-3-6
minimum lot area (A district): >= 40 acres (Subject to the Clinton County Health Department soil-absorption lot requirement)
“minimum lot area 40 acres 3 acres 1 acre”
Land inside Carlyle township outside incorporated municipalities, front setbacks measured from road centerline or right-of-way under Clinton County Zoning Ordinance section 40-3-6
front setback, county road outside incorporated limits (from road centerline): 100 ft · front setback, township road (from road centerline): 75 ft · front setback, interstate and state routes (from easement or right-of-way line): 75 ft
“(except along county roads outside the incorporated limits of any city, village or incorporated town, the minimum setback shall be 100 ft from the center line of the road, & township roads the minimum setback shall be 75 ft from the center line of the road).”
Land inside Carlyle township outside incorporated municipalities, structure height under Clinton County Zoning Ordinance section 40-3-6
maximum structure height (districts listed at 35 ft): <= 35 ft (Districts shown as none in the same row have no height figure in the schedule)
“maximum height structure none 35 ft 35 ft 35 ft 35 ft 35 ft none”
Private sewage systems for a new home inside Carlyle township, to the extent the lot has no public sewer
“under the control of the Health Department”
“The Illinois Department of Public Health (IDPH) regulates the installation of all private sewage disposal systems that have no surface discharge”
New dwellings inside Carlyle township outside incorporated municipalities that are not connected to public sewers
“A permit from the Clinton County Health Department is required to install, replace or modify a private sewage system prior to construction.”
Land divisions and subdivision plats for land inside Carlyle township outside incorporated municipalities
“The zoning office also administers the Subdivision and Floodplain Ordinances.”
Development on land inside Carlyle township outside incorporated municipalities that lies in a mapped floodplain
“AN ORDINANCE REGULATING DEVELOPMENT IN FLOODPLAIN AREAS”
Building and zoning permit fees for land inside Carlyle township outside incorporated municipalities
“view fee schedule building permits residential building permit application agricultural building permit application”
Residential building permit application for land inside Carlyle township outside incorporated municipalities
“Your site plan should consist of the following:”
We looked and could not find an official answer yet. Silence is not permission; ask Carlyle Township or Clinton 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 Carlyle Township publishes no rule on the point, not that none exists. Clinton County’s page lists the county offices to call.
Off-grid gear
Going off-grid in Carlyle Township means bringing your own water and power. The kit we’d start with:
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