Zoning, building permits and septic rules in Olio Township, Illinois

Rules another office applies inside Olio Township

Olio Township does not set these itself; the county, a health district or the state does, and they apply to every address inside its limits.

• Building permitRequired

  Erecting, altering or changing the use of any structure, including dwellings, on unincorporated land inside Olio township; this is the county zoning permit, not a separately verified building-code permit

  • Permit is a county zoning permit issued by the zoning administrator; the FAQ does not state a separate building permit.
  • Zoning permits for dwellings cannot be processed until a septic permit and soil erosion permit is acquired.
  • Applies only to unincorporated land; properties in a city or village follow their local jurisdiction.

  “no building or other structure shall be erected, constructed, reconstructed, altered, converted, removed, added to, used or the use therein changed unless and until a zoning permit is obtained from the zoning administrator.”

• Minimum lot sizeDistrict specific (with conditions)

  Lots and uses in the agriculture district of unincorporated Olio township (county zoning; not a township rule)

  • Special use permit may provide otherwise, per the ordinance.
  • Lot width is measured at the building setback line.
  • No single-family residential district was identified in the captured text; this is the only district with a lot size found.

  minimum lot size: >= 2 acres (except as provided by special use permit) · minimum lot width at building setback line: >= 200 feet

  “except as provided by special use permit, all uses and structures in the agriculture district shall have a minimum lot size of two (2) acres.”

  One more reviewed finding on this topic

  • Specified — Lots platted or created in unincorporated Olio township under the county ordinance (provision located in the general lot-standards text; its section number was not captured)

    “no lot hereafter platted or created shall be less than one-hundred (100) feet in depth.”

• SetbacksDistrict specific (with conditions)

  Non-agricultural uses and structures in the agriculture district of unincorporated Olio township (county zoning)

  • Front yard setback is set by §154.04.7.c, which was not opened.
  • Side and rear figures apply to non-agricultural uses only.
  • Height limits in §154.11 were not captured (see followups).

  principal structure side setback: >= 30 feet · principal structure rear setback: >= 50 feet · accessory structure side setback: >= 15 feet · accessory structure rear setback: >= 15 feet

  “b. non-agricultural uses, only. 1. side yard. a. principal structures shall have a side setback of not less than 30 feet. b. accessory structures shall have a side setback of not less than 15 feet.”

• Who permits septicCounty (with conditions)

  Private septic systems on land inside Olio township, as administered by the Woodford County Health Department (county-level department applies countywide, including Olio township)

  • Applies to private sewage systems for residents outside city water treatment areas, per the county health page.
  • Municipal or village sewer systems inside incorporated areas are outside this claim.

  “the woodford county health department is responsible for the enforcement of regulations governing the installation of private well and sewage systems in woodford county.”

• Septic permitRequired

  New or renovated private septic systems on land inside Olio township

  • Septic permit must be obtained before a county zoning permit for a dwelling is processed (see county zoning FAQ).
  • Fee and office details are from the county health page, which is undated and may be outdated; confirm with the Health Department at 309-467-3064.

  septic permit fee: 225 USD

  “review plans and issue permits for private septic systems”

• Septic inspectionRequired

  New or repaired private septic systems on land inside Olio township

  • Inspection is performed by Woodford County Health Department environmental staff; the page does not give the inspection sequence.

  “inspect new or repaired private septic systems”

• Well permitRequired

  New or renovated private water wells on land inside Olio township

  • Applies to private wells outside city water treatment areas, per the county health page.

  well permit fee: 100 USD

  “permitting and inspection of all newly constructed or renovated wells and sewage disposal systems”

• Permit feesPublished (with conditions)

  Well and septic permit fees for private systems on land inside Olio township

  • Zoning permit fee schedule is under 'zoning resources' on the county website and was not opened.
  • Page is undated; confirm current fees.

  septic permit fee: 225 USD · well permit fee: 100 USD

  “well permit - $100.00 well sealing - $50.00 (per well) septic permit - $225.00”

• Permit processPartial

  Zoning permit process for dwellings on unincorporated land inside Olio township

  • Zoning office is at 115 North Main Street, Room 100, Eureka; open Monday through Friday 8 am to 5 pm (per the FAQ).
  • Process timing depends on the permit type; the fee schedule and the full application list were not opened.

  “zoning permits for dwellings cannot be processed until a septic permit and soil erosion permit is acquired.”

Still unanswered

We looked and could not find an official answer yet. Silence is not permission; ask Olio Township or Woodford County directly.

• Owner-builder exemption — Owner-builder exemption for homes inside Olio township
• Building code adopted — Adoption of a building code for new homes in unincorporated Olio township
• Inspections — Building inspections for new homes on unincorporated land inside Olio township
• Certificate of occupancy — Certificate of occupancy for a new home inside Olio township
• Local zoning — Whether Olio township itself adopts and administers a zoning ordinance

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.