Iroquois County, Illinois
Ash Grove Township is a township in Iroquois County, Illinois. Ash Grove Township adopts its own zoning, so inside its limits Ash Grove Township’s rules apply, not the county’s. Septic permits inside Ash Grove Township come from Iroquois County. 19 rules below are quoted from official sources and independently re-checked, most recently on October 29, 2026. Rules for unincorporated land are on the Iroquois County page.
Construction on unincorporated land inside Ash Grove Township administered through Iroquois County Planning & Zoning.
fine for beginning construction without permit: 1000 USD per day
“be aware the county has established a fine of $1,000 per day for beginning construction without a permit”
Permitted construction on unincorporated land inside Ash Grove Township.
“building code requires inspections for your permit. please contact the appropriate inspector prior to any construction on your project-”
Unincorporated land inside Ash Grove Township, where the Iroquois County Zoning Ordinance supplies the applicable zoning controls.
“The jurisdiction of this ordinance shall include all lands and waters within the unincorporated areas of Iroquois County.”
Unincorporated land inside Ash Grove Township subject to the county Zoning Atlas.
“For the purpose of this ordinance, the County of Iroquois is hereby divided into the following zoning districts: A-1 Agriculture District A-2 Agriculture District RR-1 Single-Family Residential District UR-1 Single Family Residential RH-1 Rural Homestead District WF-1 Waterfront Residence District B-1 Business District B-2 Shopping Center District B-2A Neighborhood Shopping Center B-2B Community Shopping Center M-1 Industrial District M-2 Industrial District M-3 Extraction District PD Planned Development District”
A-1 Agricultural District on unincorporated land inside Ash Grove Township.
minimum total floor area: >= 900 square feet · minimum building width: >= 22 feet
“BUILDING: Minimum Total Floor Area: 900 square feet Minimum Building Width: 22 feet Maximum Height: 35 feet”
A-1 Agricultural District relative-of-landowner single-family dwelling located on the same farmstead and tract exceeding 75 acres, inside Ash Grove Township.
maximum structure coverage: <= 20 percent of buildable lot area
“one single-family dwelling for relatives of the landowner when located on the same farmstead, and only if located on a tract exceeding 75 acres in size. bulk requirements: minimum buildable lot size: 20,000 sq. ft. structure must not exceed 20% of buildable lot area”
A-1 Agricultural District on unincorporated land inside Ash Grove Township.
maximum height: <= 35 feet
“BUILDING: Minimum Total Floor Area: 900 square feet Minimum Building Width: 22 feet Maximum Height: 35 feet”
Wheeled vehicles designed for sleeping or camping on unincorporated land inside Ash Grove Township.
maximum travel-trailer stay: <= 180 days
“However, temporary usage of lots of record, either with or without dwellings may be permitted for wheeled vehicles designed for sleeping or camping by temporary permit from the Zoning Enforcement Officer. Travel Trailers must be moved after one hundred and eighty (180) days.”
Temporary camping by wheeled sleeping or camping vehicles on unincorporated land inside Ash Grove Township.
maximum travel-trailer stay: <= 180 days
“However, temporary usage of lots of record, either with or without dwellings may be permitted for wheeled vehicles designed for sleeping or camping by temporary permit from the Zoning Enforcement Officer. Travel Trailers must be moved after one hundred and eighty (180) days.”
Mobile-home occupancy on unincorporated land inside Ash Grove Township.
“Mobile Homes - No mobile home shall be occupied as a dwelling except when such mobile home is located in a licensed and approved mobile home park or as otherwise herein provided.”
Private sewage systems serving land inside Ash Grove Township.
“Issue permits to install private sewage disposal systems on properties located in both counties in accordance with state and local requirements, and provide education to the public about private sewage disposal systems.”
Construction or repair of a private sewage system inside Ash Grove Township.
“After receipt of a completed Application for Permit to Construct or Repair a Private Sewage Disposal System and the permit fee, a Licensed Environmental Health Practitioner (LEHP) will review the application for approval.”
Newly completed private sewage systems inside Ash Grove Township.
completion notice: 24 hours
“The septic installer shall give the Iroquois County Public Health Department 24 hour notice on completion of the septic system so that the Licensed Environmental Health Practitioner (LEHP) / Licensed Environmental Health Practitioner in Training (LEHPIT) may go to the site and inspect the septic system.”
Private sewage disposal systems serving land inside Ash Grove Township.
“Protect the health of the public by ensuring that septic systems are constructed and maintained according to state and local regulations.”
New wells inside Ash Grove Township.
“Issuance of permits for newly constructed wells”
A parcel split from an existing homesite in the A-1 Agricultural District inside Ash Grove Township.
“One parcel split from an existing homesite of at least two acres that existed on February 1, 2005. The site shall remain contiguous to the existing homesite and, regardless of ownership, shall be considered a separate parcel subject to the provisions of the Illinois Plat Act and the Iroquois County Subdivision Ordinance.”
A-1 existing-homesite parcel split inside Ash Grove Township.
ingress-egress entrance width: >= 66 feet
“All existing or new entrances of ingress and egress from a public road must be at least 66 feet in width. ACCESS EASEMENTS: Must be a minimum of 66 foot wide.”
Replacement, modification, or addition to a structure within flood plains on unincorporated land inside Ash Grove Township.
“Replacement structures shall conform to the standards established for the zoning district, except that replacement, modification, or addition to structures within flood plains must also meet specifications set by the Federal Emergency Management Agency, or its successors, pertaining to elevations and flood proofing.”
A-1 existing-homesite parcel split inside Ash Grove Township.
application fee: 100 USD · split fee: 100 USD
“APPLICATION FEE: The application fee is $100.00. The split fee is $100.00.”
We looked and could not find an official answer yet. Silence is not permission; ask Ash Grove Township or Iroquois 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 Ash Grove Township publishes no rule on the point, not that none exists. Iroquois County’s page lists the county offices to call.
Off-grid gear
Going off-grid in Ash Grove Township means bringing your own water and power. The kit we’d start with:
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