Bolthole Index

Will County, Illinois

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

Village of Frankfort is a village in Will County, Illinois. Village of Frankfort adopts its own zoning, so inside its limits Village of Frankfort’s rules apply, not the county’s. Septic permits inside Village of Frankfort come from Will County (Will County Health Department — Private Sewage Program (Joliet Main Office) · 815-727-8490). 5 rules below are quoted from official sources and independently re-checked, most recently on November 2, 2026. Rules for unincorporated land are on the Will County page.

Answers from the rulebook for Village of Frankfort

Village of Frankfort’s own rules

  • Local zoningPresent (with conditions)

    Land inside Frankfort village limits: the village administers its own zoning map and zoning code

    • Table X of the village code lists rezonings of parcels to village zoning districts (for example from e-r to r-1, from r-2 to r-4, and to c-1, c-2 and c-5) and variances to the zoning code, which shows the village zoning code is in force.
    • The zoning chapter text itself was not reached in this research pass, so district rules are not stated here.
    “editor's note: this table lists changes to the zoning map and variances to the zoning code.”
  • Mandatory utility hookupConditional

    Property inside Frankfort village served by a private sewage disposal system once a public sanitary sewer becomes available

    • Applies when a public sewer becomes available to the property (section 51.076(a), referencing section 51.061(b), which was not reached).
    • Connection must be made in compliance with sections 51.060 through 51.125, and septic tanks and cesspools must be abandoned and filled.
    • Water connection requirements were not found in this research pass; utility_connection here covers sewer only.
    • Section 51.076 adopted by ord. 1312, passed 7-16-90.

    time to connect building sewer after public sewer becomes available: <= 90 days

    “when a public sewer becomes available, the building sewer shall be connected to said sewer within 90 days”

Rules another office applies inside Village of Frankfort

Village of Frankfort 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 septicCounty (with conditions)

    Private sewage disposal (septic) systems on land inside Frankfort village where no public sanitary sewer is available; the Will County Health Department, not the village, issues the permit. Applies inside Frankfort village per the village code.

    • Scope note: the schema allows county authority only with a county geography value, so district-specific is recorded here; the rule is the village code section that routes permits to the county health department.
    “before commencement of construction of a private sewage disposal system the owner shall first obtain a written permit signed by the will county health department.”
  • Septic permitRequired

    New private sewage disposal (septic) system on a lot inside Frankfort village where a public sanitary sewer is not available

    • Applies only where a public sanitary sewer is not available under section 51.061(b), which was not reached in this research pass.
    • Permit is issued by the Will County Health Department on its form; the village code section cited says the permit and inspection fee is paid at filing.
    • No permit shall be issued for a subsurface soil absorption system where the lot is less than 150,000 square feet (section 51.075(d)).
    • The system type, capacity, location and layout must comply with the Illinois Private Sewage Disposal Licensing Act and code and with the Illinois EPA (section 51.075(d)).
    • Section adopted by ord. 1312, passed 7-16-90, per the code history note.

    minimum lot area for subsurface soil absorption private sewage system permit: >= 150000 square feet (Lots smaller than this may not get a permit for a subsurface soil absorption system)

    “no permit shall be issued for any private sewage disposal system employing subsurface soil absorption facilities where the area of the lot is less than 150,000 square feet.”
  • Septic inspectionRequired

    Private sewage disposal (septic) system built inside Frankfort village under a Will County Health Department permit

    • The county health department may inspect at any stage of construction; the applicant must notify it before underground portions are covered.
    • Inspection shall be made within 48 hours of receipt of written notice (section 51.075(c)).
    • Section adopted by ord. 1312, passed 7-16-90.

    inspection notice time after receipt of written notice: <= 48 hours

    “the applicant for the permit shall notify the will county health department when the work is ready for final inspection, and before any underground portions are covered.”

Still unanswered

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

  • Building permit — New construction inside Frankfort village
  • Owner-builder exemption — Owner-builder construction of a home inside Frankfort village
  • Building code adopted — Building construction inside Frankfort village
  • Inspections — Building inspections of new construction inside Frankfort village
  • Certificate of occupancy — Occupancy of new dwellings inside Frankfort village
20 more unanswered
  • Zoning districts
  • Minimum dwelling size
  • Minimum lot size
  • Setbacks
  • Lot coverage
  • Building height
  • Living in an RV
  • Camping on your land
  • Tiny homes
  • Manufactured homes
  • Accessory dwellings
  • Off-grid sanitation
  • Well permit
  • Agricultural exemption
  • Subdividing land
  • Driveway access
  • Building in a floodplain
  • Short-term rentals
  • Permit fees
  • Permit process

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 Frankfort publishes no rule on the point, not that none exists. Will County’s page lists the county offices to call.

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