Zoning, building permits and septic rules in Mount Carroll Township, Illinois

Rules another office applies inside Mount Carroll Township

Mount Carroll 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

  New residential dwellings on unincorporated land in Mount Carroll township under Carroll County zoning (not inside the City of Mount Carroll)

  • Permit is issued only after the lot is surveyed and the survey is recorded by deed.
  • Permit for a new dwelling site is refused if the site gets an unacceptable LESA score under ordinance 700-5.02(o).
  • A 2-acre residential exemption and pre-existing home site exemption from LESA may apply; see subdivision claims.
  • Applicability to all unincorporated township land is inferred from county zoning jurisdiction; the county zoning page could not be opened.

  “the lot created by survey must be transferred by deed through the process of recording before a new residential building permit will be issued.”

• Minimum lot sizeSpecified

  Land in the county agricultural district (AG-1) under Carroll County zoning Chapter 700 within unincorporated Mount Carroll township; does not reach land inside the City of Mount Carroll

  • Residential-use exemption lot: 2 acres minimum with one length of lot of no less than 150 feet.
  • Non-residential division of AG-1 ground requires 5 acres.
  • The 2-acre exemption does not release the Illinois Plat Act survey requirement (765 ILCS 205).
  • Lots must pass the LESA score for new dwelling sites (see subdivision claim).
  • Lawfully created smaller lots recorded before a minimum lot size was adopted are grandfathered under ordinance 700-5.04(b), per the county summary.
  • Figures come from the county's own summary of Chapter 700; the ordinance text itself was not retrievable.

  minimum lot size, residential exemption: >= 2 acres (residential use only, AG-1 district) · minimum lot dimension, residential exemption (one length): >= 150 feet (residential use only, AG-1 district) · minimum lot size, non-residential division of AG-1 ground: >= 5 acres (non-residential use)

  “the lot exemption is specifically for residential use and states an acceptable minimum acreage of 2 acres with one length of lot equaling no less than 150 feet.”

• Subdividing landLimited

  Creation of new dwelling sites on unincorporated land in Mount Carroll township under Carroll County zoning

  • New dwelling sites require a favorable Carroll County LESA score; unacceptable scores get no new dwelling permit.
  • Lots for a pre-existing home site are exempt from LESA, per the county summary.
  • A pre-existing home site that is removed or demolished must obtain a building permit within 48 months to keep the LESA exemption for rebuilding.
  • Lots must be surveyed and recorded before a new residential permit issues.

  “building sites receiving an unacceptable score will not be given a new dwelling building permit.”

  One more reviewed finding on this topic

  • Regulated (with conditions) — Land divided into two or more parts in Mount Carroll township (Illinois Plat Act, 765 ILCS 205, statewide)

    “whenever land is divided into 2 or more parts and any one of those parts is less than 5 acres, the property shall be surveyed and a subdivision plat made by an illinois registered land surveyor.”

• Permit processPartial

  Zoning and building applications for unincorporated land in Mount Carroll township under Carroll County zoning

  • Applications are available online or in person, but the county summary gives no step list, fee, or timeline.
  • New dwelling permits also depend on the LESA and recorded-survey steps described in the subdivision claims.

  “applications can be found online on the carroll county website, or are available for pick up at the gis, zoning or assessment offices.”

Still unanswered

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

• Owner-builder exemption — Owner-builder permit exemption in Mount Carroll township
• Building code adopted — Building code adoption for Mount Carroll township, Carroll County, IL
• Inspections — Building inspections for Mount Carroll township
• Certificate of occupancy — Certificate of occupancy for new homes in Mount Carroll township
• Local zoning — Land inside Mount Carroll township (Carroll County, IL) outside the City of Mount Carroll limits: whether the 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.

Off-grid gear

Going off-grid in Mount Carroll Township means bringing your own water and power. The kit we’d start with:

• Water Crystal Quest Filter any source — well, rain, or creek — to drinking-clean.
• Power Bluetti Solar generators and home battery backup for living off the grid.
• Septic Soil percolation test kit Run your own perc test before paying an engineer — the first thing a septic office asks about.
• Water Well water test kit Bacteria, nitrates, hardness — know what the well on a parcel is really pumping.

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