Bolthole Index

Adams County, Illinois

Zoning, building permits and septic rules in Village of Mendon, Illinois

Village of Mendon is a village in Adams County, Illinois. 7 rules below are quoted from official sources and independently re-checked, most recently on November 2, 2026. Rules for unincorporated land are on the Adams County page.

Answers from the rulebook for Village of Mendon

Village of Mendon’s own rules

  • Certificate of occupancyRequired

    Mobile home parks inside Mendon village limits (this applies to parks only, not single-family homes)

    • The mobile home ordinance says the enforcing officer, the village board president, issues the certificate.
    • The certificate confirms that the park, or the part of it covered by the request, complies with the ordinance.
    “no mobile home park shall be occupied until a certificate of use and occupancy shall have been issued by the enforcing office to the effect that the mobile home park or the portion thereof for which such certificate is requested is in compliance with all applicable provisions of this ordinance.”
  • Minimum lot sizeSpecified

    Individual mobile home lots inside a village-licensed mobile home park only; does not govern single-family residential lots

    • Applies only to lots inside a licensed mobile home park.
    • A park needs at least two acres (section 5) and at least 10 completed spaces before first occupancy.
    • Each individual mobile home lot must be at least 40 feet wide (section 9).

    minimum lot area for an individual mobile home: >= 3300 square feet (mobile home park lots only)

    “the minimum lot area for an individual mobile home shall be 3,300 square feet.”
  • SetbacksSpecified

    Mobile home park layouts inside Mendon village only; does not govern single-family residential setbacks

    • Applies inside a licensed mobile home park.
    • Side and rear lot-line distance of 7.5 feet and 15 feet to common areas also apply under sections 10 and 11 but were not separately quoted.

    setback from mobile home park boundary: >= 15 feet (mobile home park only) · setback from public street: >= 25 feet (mobile home park only) · spacing between mobile homes: >= 15 feet (mobile home park only)

    “in no case shall a mobile home be located less than fifteen (15) feet from the mobile home park boundary. the distance from that part of a mobile home closest to a public street shall be twenty-five (25) feet minimum.”
  • Lot coverageSpecified

    Individual mobile home lots inside a village-licensed mobile home park only

    • Applies inside a licensed mobile home park; does not govern single-family lots.

    maximum share of individual mobile home lot occupied by mobile home and appurtenant structure: <= 30 percent (mobile home park lots only)

    “a mobile home and its appurtenant structure may not occupy more than thirty percent (30 %) of the individual mobile home lot.”
  • Manufactured homesLimited

    Mobile homes situated, parked, moved to, constructed, replaced or enlarged inside Mendon village corporate limits (the village mobile home ordinance's own definition)

    • Allowed only in a mobile home park licensed by the village (section 2a); a license to operate is needed for a park.
    • Existing parks and stands are grandfathered; a replacement mobile home in an existing park must be no older than 10 years (section 2b).
    • A mobile home already in the village on the ordinance's effective date may be replaced with a unit no older than 10 years, which must be occupied within one year after the replaced unit becomes unoccupied (section 2c).
    • A mobile home unoccupied for one continuous year must be removed from the premises (section 2c).
    • The definition excludes modular housing built on a permanent concrete foundation that lacks mobile-home characteristics.
    • The scan shows a 1995-era date; the effective date is not verified and effective_at is left null.
    “no mobile home may be situated in, parked in, moved to, constructed, replaced or enlarged in the corporate limits of the village of mendon except in a licensed mobile home park, except as provided in section 2c.”
  • Subdividing landRegulated (with conditions)

    Public and private streets built in Mendon village, including streets in mobile home parks

    • The village subdivision regulations themselves were not located; this claim rests on a reference inside the mobile home ordinance.
    • The mobile home ordinance text is undated in the scan, so the regulation's current status is not verified.
    “(1) public streets: all publicly dedicated streets shall conform to the requirements of the subdivision regulations of the village.”
  • Permit processPartial

    Building permit application for work inside Mendon village limits

    • The village posts a building permit form (Word format) to be completed, printed and returned to the village office.
    • The ordinance that governs building permits (#232) is listed on the village index, but its text could not be read, so review steps, timing and approvals are not verified.
    “the attached is the building permit form (in word). please complete, print and return.”

Still unanswered

We looked and could not find an official answer yet. Silence is not permission; ask Village of Mendon or Adams County directly.

  • Building permit — New construction or alteration inside Mendon village limits
  • Owner-builder exemption — Owner-builders doing their own work inside Mendon village limits
  • Building code adopted — Construction inside Mendon village limits: which building code, if any, the village adopts
  • Inspections — Inspection of new homes inside Mendon village limits
  • Local zoning — Land inside Mendon village limits: whether the village adopts and administers its own zoning ordinance
17 more unanswered
  • Zoning districts
  • Minimum dwelling size
  • Building height
  • Living in an RV
  • Camping on your land
  • Tiny homes
  • Accessory dwellings
  • Who permits septic
  • Septic permit
  • Septic inspection
  • Off-grid sanitation
  • Well permit
  • Agricultural exemption
  • Driveway access
  • Building in a floodplain
  • Short-term rentals
  • Permit fees

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 Village of Mendon publishes no rule on the point, not that none exists. Adams County’s page lists the county offices to call.

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