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

Rules another office applies inside Derinda Township

Derinda 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 homes and other building work on land inside Derinda township outside any municipality, issued by the Jo Daviess County Planning & Development Department

  • Construction may not begin until the permit is issued.
  • Permit application requires a septic permit copy when applicable, a new address application when needed, and an ag structure exemption statement for agricultural structures.
  • Permit applies countywide in unincorporated areas; municipalities may differ.

  “a permit must be obtained prior to beginning any construction or excavation.”

• Building code adoptedAdopted (with conditions)

  New construction and alterations on land inside Derinda township outside any municipality, under Jo Daviess County building permits

  • Adopted codes: International Building Code 2021 edition (with appendix chapter G), International Residential Code 2021 edition (with listed appendices), and International Mechanical Code 2021 edition (with appendix chapter A), per the county document.
  • The document lists the codes as effective 01/01/2025; municipalities are not covered by this claim.

  “the following technical codes have been adopted and made a part of the building code, effective 01/01/2025: o international building code: 2021 edition”

• InspectionsRequired

  Permitted building work on land inside Derinda township outside any municipality

  • Owner or contractor must call the Planning & Development Department for each inspection.
  • Listed inspections include footings, framing before siding, rough-in for electrical, plumbing and mechanical before insulation, post-insulation for conditioned space, and final before occupancy.
  • Commercial structures also need architecturally stamped plans.

  inspection call-ahead: >= 24 hours (footings require a call 3-4 hours before pouring)

  “inspections are required. call the planning & development department at (815) 591-3810 before the work is ready.”

• Local zoningPresent (with conditions)

  Land inside Derinda township outside any municipality; county zoning (Jo Daviess County Title 8) is the zoning that applies there because no Derinda township zoning ordinance was located

  • Applies only to land outside a municipality; the county FAQ states all property outside a municipality is subject to county zoning.
  • Use, intensity and bulk rules depend on the district and are not stated in the FAQ; see the district-specific claims.
  • Zoning permission does not replace a building, septic or well permit (county FAQ).

  “all property outside of a municipality is subject to county zoning.”

• Zoning districtsPartial

  Zoning districts applying to land inside Derinda township outside any municipality

  • Only the AG and R-1 districts are named in the opened county text; the full district list and official zoning map were not opened.
  • A 2022 county zoning map and the Title 8 district text exist per search results but were not verified on an opened page.

  “side & rear setbacks. (in ag & r-1, side setback is 20’, & rear setback is 40’)”

• SetbacksSpecified

  Single-family residential construction in the Agricultural (AG) district on land inside Derinda township outside any municipality

  • Side and rear setbacks as stated in the county permit document; the same document lists front setbacks from road type (county roads 60 ft from property line / 110 ft from centerline; township roads 50 ft from property line / 80 ft from centerline), whose district scope was not confirmed.
  • Setbacks are as stated in the permit guidance; the adopted Title 8 section was not opened.

  side setback: 20 ft · rear setback: 40 ft

  “side & rear setbacks. (in ag & r-1, side setback is 20’, & rear setback is 40’)”

  One more reviewed finding on this topic

  • Specified — Single-family residential construction in the Single Family Residential (R-1) district on land inside Derinda township outside any municipality

    “side & rear setbacks. (in ag & r-1, side setback is 20’, & rear setback is 40’)”

• Who permits septicCounty (with conditions)

  Private sewage disposal (septic) systems on land inside Derinda township outside any municipality, administered by the Jo Daviess County Environmental Health Department

  • Permit is issued by the county Environmental Health Department and sent to Planning & Development.
  • Derinda township has no separate septic authority found in the research.

  “you or your septic contractor, are required to obtain a septic permit from the jo daviess county environmental health department”

• Septic permitRequired

  New homes and other buildings needing wastewater disposal on land inside Derinda township outside any municipality

  • A septic permit or sign-off must be issued before a building permit is issued (county document).
  • Septic permit copy is required with the building permit application when applicable.

  “a septic permit or sign off must be issued prior to the issuance of a building permit.”

• Subdividing landRegulated (with conditions)

  Creating new lots from a larger parcel on land inside Derinda township outside any municipality

  • Subdividing is needed when lots are created from a larger piece and are smaller than 5 acres or create a new access easement (county FAQ).
  • Requires a formal procedure: application, surveyor plat, planning commission public hearing and county board decision; the county FAQ says this often takes 90 to 120 days.
  • Parcels between 10 and 40 acres and rezonings follow the same process as described in the county FAQ.

  subdivision threshold: < 5 acres (lots created from a larger piece or creating a new access easement regardless of size, per county FAQ)

  “subdividing is needed when lot(s) are being created from a larger piece and are smaller than 5 acres or are creating a new easement of access.”

• Permit feesPublished (with conditions)

  Zoning certificate fees for single-family construction on land inside Derinda township outside any municipality

  • Fee table includes zoning certificates for dwellings, additions, sheds/decks, and outbuildings; building permit fees are separate and not fully captured.
  • Work started before a permit is issued carries a 100 percent fee increase when in violation.

  zoning certificate, single-family dwelling: 50 USD (per the county fee table in the building permit requirements document; other fee items not captured)

  “zoning certificates: single family related construction: dwellings-----------------------------------------------------------$ 50.00”

• Permit processPublished (with conditions)

  Permit process for building or zoning approval on land inside Derinda township outside any municipality

  • Zoning check with Planning & Development is required before building.
  • Owner or contractor submits two sets of plans, survey, septic permit copy and application; permit is issued at Planning & Development (1 Commercial Drive, Hanover IL).

  “zoning check with the planning & development department as to the zoning on the property, and if any processes are needed to achieve your intended use.”

Still unanswered

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

• Owner-builder exemption — Owner-builder construction on land inside Derinda township outside any municipality
• Certificate of occupancy — Occupancy approval for new homes on land inside Derinda township outside any municipality
• Minimum dwelling size — Minimum dwelling size for AG and R-1 districts inside Derinda township outside any municipality
• Minimum lot size — Minimum lot size for AG and R-1 districts inside Derinda township outside any municipality
• Lot coverage — Lot coverage limits for AG and R-1 districts inside Derinda township outside any municipality

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.