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

Hollis Township’s own rules

• Building permitRequired

  New homes and listed residential projects on unincorporated property inside Hollis Township served by Peoria County Planning and Zoning.

  • All permits require a site plan.
  • The County page lists sheds of 200 square feet or less, re-siding, reshingling, and cosmetic upgrades as projects not needing a permit; exempt sheds must still meet setbacks and accessory-structure limits.

  “Permits are needed for a variety of project types, including, but not limited to:”

• Owner-builder exemptionConditional

  Owner-performed plumbing work associated with permitted residential construction on unincorporated property inside Hollis Township.

  • Existing residential property must be the owner's primary residence.
  • For new residential construction, the owner must plan to take possession as a primary residence.
  • Rental residential property that is not the owner's primary residence requires a licensed plumber.

  “Existing residential properties: you must be the owner of the property AND this property must be your primary residence.”

• Building code adoptedAdopted (with conditions)

  Unincorporated property inside Hollis Township served by Peoria County Planning and Zoning.

  • Peoria County Planning and Zoning states that it serves unincorporated properties in Peoria County.
  • The listed codes include the 2018 International Residential Code, 2021 Illinois Energy Conservation Code effective January 1, 2024, 2017 National Electrical Code, and current Illinois Plumbing Code.

  “The Following Codes Are Adopted & Enforced”

• InspectionsRequired

  Permitted construction on unincorporated property inside Hollis Township served by Peoria County Planning and Zoning.

  • The number and type of inspections vary by project.
  • Inspectors require at least 24 hours' advance notice to schedule an inspection.

  “All permits will require inspection, although the number and type of inspections vary by project.”

• Building in a floodplainRequired

  Development within a Special Flood Hazard Area on unincorporated property inside Hollis Township.

  • The requirement applies before starting development projects in a floodplain area.
  • Peoria County identifies itself as responsible for floodplain management as an NFIP participant.

  “All development within the SFHA is required to obtain a floodplain development permit prior to starting development projects in a floodplain area.”

• Permit processPublished (with conditions)

  Building permits for unincorporated property inside Hollis Township served by Peoria County Planning and Zoning.

  • A building permit application must be submitted with applicable project submittal requirements.
  • Incomplete digital submittals will not be sent for plan review.
  • Plans must be reviewed and approved before a permit is issued.

  “Plans will then need to be reviewed and approved before a permit can be issued.”

Rules another office applies inside Hollis Township

Hollis Township does not set these itself; the county, a health district or the state does, and they apply to every address inside its limits.

• Who permits septicLocal (with conditions)

  Private sewage disposal systems inside Hollis Township subject to the Peoria City/County Health Department's Environmental Health Division.

  “Reviewing applications and plans as well as issuing permits.”

• Septic permitRequired

  Construction, alteration, or extension of a private sewage disposal system inside Hollis Township subject to the Peoria City/County Health Department's Environmental Health Division.

  • The requirement applies when constructing, altering, or extending a private sewage disposal system.

  “Requiring anyone constructing, altering, or extending a private sewage disposal system to have a valid permit issued by the Health Department.”

• Septic inspectionRequired

  Installation or repair of private sewage disposal systems inside Hollis Township subject to the Peoria City/County Health Department's Environmental Health Division.

  • The page separately advises owners to inspect septic tanks every year and to have systems inspected or repaired if problems occur.

  “Inspecting disposal systems for proper installation or repair.”

• Well permitRequired

  Private wells inside Hollis Township subject to the Peoria City/County Health Department's Environmental Health Division.

  “Reviewing plans and issuing permits for private wells.”

Still unanswered

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

• Local zoning — Land inside Hollis Township, Peoria County, Illinois.
• Zoning districts — Land inside Hollis Township.
• Minimum dwelling size — Dwellings inside Hollis Township.
• Minimum lot size — Lots inside Hollis Township.
• Setbacks — Structures inside Hollis Township.

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.