Watershed Development Permit Information

About the Permit

The Lake County Watershed Development Ordinance (WDO) Permit is required when a project is located in a floodplain or flood-prone area; may impact a wetland; will hydrologically disturb more than 5000 square feet; or will modify the site drainage.

Certified Communities

If you are developing in a Certified Community (PDF) the municipality is the permitting agency.

If you are developing in an unincorporated area, contact Lake County Planning, Building and Development (PB&D) at 847-377-2081.

If your project is not within a Certified Community or in an unincorporated area, SMC is the permitting agency for Non-Certified Communities (PDF).

Related Documents

  1. Lake County Watershed Development Ordinance (October 13, 2020) (PDF)
  2. Certified and Non-Certified Communities (Oct. 26, 2022) (PDF)
  3. Category Fee Schedule (PDF)