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

Rules another office applies inside Addison Township

Addison 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 septicCounty (with conditions)

  Private sewage (septic) system permits and program for DuPage County properties, as the DuPage County Health Department administers them; applies inside Addison township only where the health department program covers the parcel (unincorporated or not municipally sewered)

  • The opened pages do not say which Addison township parcels are served by municipal sewer and therefore outside the septic program.
  • Incorporated municipalities inside Addison township may have their own sewer rules; not verified.

  “if you have any questions regarding obtaining a permit for installing a new septic system or repairing a septic system, please contact plan review at 630-221-7045.”

• Septic permitRequired

  New or repaired private septic systems on DuPage County Health Department-served parcels, including such parcels inside Addison township

  • The page describes a permit for installing a new septic system or repairing one; it does not state the fee on the page opened.
  • Published fees (new private sewage permit and plan review $684; combined new well and septic $1,059; septic repair $344; CPI adjusted effective December 1, 2025) are on https://www.dupagehealth.org/212/Fees but that page was not opened in this run; treat as unverified.
  • Applications are in a PDF (Application for permit for private sewage disposal facilities) and online system per the Permit Applications page, not opened.

  “if you have any questions regarding obtaining a permit for installing a new septic system or repairing a septic system, please contact plan review at 630-221-7045.”

• Permit processPartial

  County zoning requests and certifications for unincorporated DuPage County land, which may include unincorporated parcels in Addison township; not a township or municipal permit process

  • The page describes the Accela Citizen Access system for zoning requests and code enforcement; it does not describe building permit issuance.
  • Whether any given Addison township parcel is unincorporated is not verified on the opened pages.

  “the building and zoning department has moved to accela citizen access. please follow the link below to apply for zoning requests, certifications, and code enforcement/complaint.”

Still unanswered

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

• Building permit — Building permits for new construction inside Addison township
• Owner-builder exemption — Owner-builder permit exemption for a homeowner building their own home inside Addison township
• Building code adopted — Building code in force for land inside Addison township
• Inspections — Building inspections for work inside Addison township
• Certificate of occupancy — Certificate of occupancy for new dwellings inside Addison 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.