Bolthole Index

Fulton County, Illinois

Zoning, building permits and septic rules in Farmington, Illinois

Farmington is a city in Fulton County, Illinois. Farmington adopts its own zoning, so inside its limits Farmington’s rules apply, not the county’s. 6 rules below are quoted from official sources and independently re-checked, most recently on October 16, 2026. Rules for unincorporated land are on the Fulton County page.

Answers from the rulebook for Farmington

Farmington’s own rules

  • Building permitRequired

    Erection, reconstruction or structural alteration of buildings inside Farmington city

    • Permit becomes void ninety (90) days after issuance unless substantial progress has been made
    • Permit may be revoked without notice on breach of representations
    • Fee amount not stated on the form

    permit void if no substantial progress: 90 days

    “a building permit issued with this application shall become void ninety (90) days after issuance unless substantial progress has been made by that date on the project described herein”
  • InspectionsRequired

    Permitted construction inside Farmington city

    • Applicant notifies zoning enforcement officer on completion; inspector of buildings may enter and inspect at any time
    “upon completion of the construction, he/she will notify the zoning enforcement officer of the city of farmington, illinois who shall then inspect the premises and issue or refuse to issue a certificate of occupancy.”
  • Certificate of occupancyRequired

    New or altered buildings inside Farmington city

    • Issued by zoning enforcement officer after inspection on completion
    “application is hereby made for a permit and a certificate of occupancy as required under the zoning ordinance of the city of farmington, illinois”
  • Local zoningPresent

    Land inside Farmington city limits

    • Zoning ordinance text itself not opened; evidence is the city's building permit application referencing it.
    “application is hereby made for a permit and a certificate of occupancy as required under the zoning ordinance of the city of farmington, illinois”
  • Zoning districtsPartial

    Zoning districts inside Farmington city

    • Only district names seen on the permit form (R, R-1, R-2, C-1, C-2, I-1); district regulations not opened
    “property zoning: () r () r-1 () r-2 () c-1 () c-2 () i-1”
  • Permit processPartial

    Building permit applications inside Farmington city

    • Application submitted at Municipal Building, 322 E. Fort Street Room 101
    • Plot layout with lot dimensions and distances to four property lines required
    • Floor plan, survey and city water/sewer service application may be requested by zoning enforcement officer
    • Zoning enforcement officer may approve, deny or refer to zoning board of appeals
    “the following shall be attached to this application at the request of the zoning enforcement officer 1. scaled floor plan of proposed building.”

Still unanswered

We looked and could not find an official answer yet. Silence is not permission; ask Farmington or Fulton County directly.

  • Owner-builder exemption — Owner-builders inside Farmington city
  • Building code adopted — Building code inside Farmington city
  • Minimum dwelling size — Minimum dwelling size in R/R-1 districts inside Farmington city
  • Minimum lot size — Minimum lot size inside Farmington city
  • Setbacks — Setbacks inside Farmington city
19 more unanswered
  • Lot coverage
  • Building height
  • Living in an RV
  • Camping on your land
  • Tiny homes
  • Manufactured homes
  • Accessory dwellings
  • Who permits septic
  • Septic permit
  • Septic inspection
  • Off-grid sanitation
  • Well permit
  • Mandatory utility hookup
  • Agricultural exemption
  • Subdividing land
  • 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 Farmington publishes no rule on the point, not that none exists. Fulton County’s page lists the county offices to call.

Off-grid gear

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

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