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

Rules another office applies inside Jarvis Township

Jarvis 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 permitLimited

  Work on existing homes and new construction in unincorporated Madison County; applies inside Jarvis township only if its land is unincorporated (not verified)

  • A building permit is required for some work (for example a new window or a larger replacement window) and is not required for other listed work (window like-for-like replacement, siding repair/replacement, kitchen/bath remodels that do not alter rough plumbing, remove load-bearing walls, upgrade electrical service, pull the meter, or add square footage).
  • Work may begin only after the application is approved by the building inspector and the permit is issued.
  • Permit fee is payable upon submitting the application.

  “unless you alter the rough plumbing, remove a load-bearing wall, upgrade the electrical service, pull the electrical meter, or add square footage to the home, a building permit is not required.”

• Building code adoptedAdopted (with conditions)

  Building plan review in unincorporated Madison County; applies inside Jarvis township only where its land is unincorporated (Jarvis township boundary vs. incorporated city limits not verified)

  • The county page states it uses the 2024 International Building Code for plan review of commercial and residential projects; the page does not say which residential code edition or whether the IRC is adopted.
  • Incorporated municipalities (for example Troy) use their own building codes and building departments; not covered here.

  “madison county uses the 2024 international building code when reviewing building plans for commercial and residential projects.”

• Zoning districtsPublished (with conditions)

  Zoning map for unincorporated Madison County; applies to Jarvis township land only if it is unincorporated and county zoning applies (not verified)

  • The county publishes a zoning map for unincorporated Madison County; the map was not opened, so district names are not recorded here.

  “zoning map for unincorporated madison county.”

• Who permits septicCounty (with conditions)

  Private sewage disposal systems on land in unincorporated Madison County; applies inside Jarvis township only if its land is unincorporated (not verified)

  • The county Building & Zoning department runs the private sewage permit and inspection program under a county private sewage disposal ordinance.
  • Whether the Madison County Health Department or the state also has a role was not verified.

  “the department also oversees stormwater management, landfill inspections, sewer permits and inspections, sustainability and recycling, and license investigations.”

• Subdividing landRegulated (with conditions)

  Land division and subdivision platting in unincorporated Madison County; applies inside Jarvis township only if its land is unincorporated (not verified)

  • The county Building & Zoning department handles subdivision review and platting; the subdivision requirements themselves were not opened.

  “this includes planning, zoning administration, building permits and inspections, subdivision review, site development, and code enforcement.”

• Permit processPartial

  Building permit process for work in unincorporated Madison County; applies inside Jarvis township only if its land is unincorporated (not verified)

  • Work may begin only after the application is approved by the building inspector and the permit is issued.
  • A building permit is active for one year from issue; expired permits require a review and renewal request to the department.
  • The county FAQ is general guidance and does not replace county ordinances; the full application checklist was not opened.

  “a building permit is active for one (1) year from the date it is issued.”

Still unanswered

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

• Owner-builder exemption — Owner-builder permit exemption for a home built by the owner in Jarvis township
• Certificate of occupancy — Certificate of occupancy for new homes in Jarvis township
• Local zoning — Whether Jarvis township itself adopts and administers a zoning ordinance for land inside its limits
• Minimum dwelling size — Minimum dwelling size for the main single-family residential district in Jarvis township (district not identified)
• Minimum lot size — Minimum lot size for the main single-family residential district in Jarvis township (district not identified)

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.