Zoning, building permits and septic rules in Geneseo, Illinois

Geneseo’s own rules

• Building permitRequired

  Buildings and structures inside Geneseo city

  • Exempt: one-story detached sheds/playhouses with roof area not over 120 sq ft; fences not over 7 ft; retaining walls not over 4 ft; water tanks up to 5,000 gal; platforms/walks/driveways not over 30 in above grade; painting; certain awnings; prefab pools up to 5,000 gal
  • Separate plumbing, electrical, street opening and access permits may still be required for exempt items

  shed exemption roof area: <= 120 sq ft (one-story detached accessory building)

  “No building or structure regulated by the adopted code shall be erected, constructed, enlarged, altered, repaired, moved, improved, removed, converted, or demolished unless a separate permit for each building or structure has first been obtained from the building inspector”

• Building code adoptedAdopted

  Construction inside Geneseo city

  • Subject to amendments approved by the council
  • Adopts 2021 IBC, IRC, IEBC, IPMC, IFGC, IFC, IMC, IECC, 2020 NEC and the Illinois Plumbing Code

  residential code: 2021 International Residential Code

  “The city adopts as though fully set forth in this section, the following building and construction related codes, subject to amendments and modifications, if any, approved and adopted by the council from time to time”

• Local zoningPresent

  Land inside Geneseo city limits

  • Chapter 40 - Zoning of the city code; adopted by Ord. No. 1206, 2-24-1981, amended by Ord. No. O-23-08, 9-12-2023

  “The principal use of land is for single-family dwellings.”

• Living in an RVLimited

  RVs, campers and travel trailers parked or stored on residential lots in Geneseo city

  • No more than two such vehicles per family on a lot
  • Must not extend past the front yard building setback line
  • Not parked in the minimum side or rear yard longer than ten consecutive days or 50 days per year without a ZBA variance
  • Must not block the public right-of-way without police consent
  • Trailer coach camps are separately regulated under Chapter 10

  maximum occupancy while parked or stored: <= 15 days per year

  “they shall not be occupied for a period longer than 15 days per year while they are so parked or stored.”

• Driveway accessLimited

  Driveways and parking access in Geneseo city zoning districts

  • Adequate access to a public street required for each parking space
  • Dwellings require two parking spaces per unit
  • In the R district no off-street parking in the front yard

  minimum driveway width, one- and two-family dwellings: >= 9 feet (20 feet for other uses)

  “adequate access to a public street shall be provided for each parking space and driveways shall be a minimum of nine feet wide for one- and two-family dwellings and a minimum of 20 feet wide for all other uses.”

• Building in a floodplainRequired

  Buildings in the Geneseo floodplain (Geneseo Creek, FEMA Henry County FIRM dated June 2, 2011)

  • Applies to new buildings or additions valued over $1,000 or 70 sq ft, substantial improvements, manufactured homes on new sites, and RVs on site over 180 days per year
  • Protection by fill, elevation, or crawlspace methods; nonresidential may be dry floodproofed
  • State permit requirements in section 14-24 also apply

  freeboard above base flood: >= 1 foot

  “all buildings located in the floodplain shall be protected from flood damage below the flood protection elevation.”

Still unanswered

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

• Owner-builder exemption — Owner-builder work inside Geneseo city
• Inspections — Inspections of new construction inside Geneseo city
• Certificate of occupancy — Certificates of occupancy inside Geneseo city
• Minimum dwelling size — R-1 and other residential districts in Geneseo city
• Minimum lot size — R-1 and other residential districts in Geneseo city

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 Geneseo 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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