Utility Fee Estimator Tool

Welcome to the Village of Winnetka’s Utility Fee Estimator Tool.  Beginning in July, 2014, the Village will use a bi-monthly stormwater fee, based on each property’s impact, to pay for the cost of its stormwater management system.  The fee is based on the amount of impervious surface located on each parcel in the Village—calculating the number of Equivalent Runoff Units (ERU).  One ERU is 3,400 square feet of impervious area; such as building rooftops, parking lots, driveways, paved walkways, pools, patios and tennis/basketball courts that impede the infiltration of stormwater into the soil.

This application allows you to search for your specific property, by street address.  The output will be the Village’s calculation of impervious area on your parcel, as well as the estimated utility bill for the next several years.  Please keep in mind that since the fee will not be implemented until July, 2014, you will only pay approximately 50% of the 2014 estimate.

If you used the Estimator tool prior to May 19, 2014, the amount here and on your forthcoming utility bill may be different. During the spring, the final data used in billing was adjusted to capture additional impervious surfaces that were not previously included in the Village’s GIS.

If you are a condominium owner, or cannot locate your address in the Estimator tool, please refer to the How To Guide for direction.  Also, the Village encourages you to visit our What is a Stormwater Utility? webpage for a full description of the proposed utility program.

To further assist residents in understanding the amount of impervious surface that has been calculated on their property, the Village has developed a list of impervious surface types. The list includes impervious and pervious surfaces, the definition of which aligns with the calculations. CLICK HERE to view the Impervious Surface Type List.

If you have additional questions, you may call the Village’s Stormwater Utility Support Line at 847-716-3549 or, you can contact the Village by filling out THIS FORM.

Enter Address Below

: Year Estimated Annual Stormwater Bill
Impervious Area
(Square Feet):
ERU: 2015

Disclaimer: The Utility Fee Estimator is a tool offered by the Village of Winnetka to assist residents in understanding the potential impact of a stormwater fee on their bi-monthly utility bill. This is not a bill. This is an estimate which may change prior to billing. A draft stormwater bill will be sent to every utility customer in the Spring of 2014.