Floodplain Maps

The Federal Emergency Management Agency (FEMA) issues maps that are used to regulate development projects in the floodplain and establish flood insurance rates. These maps are called Flood Insurance Rate Maps or FIRMs. The Village of Lisle Floodplain Map is a simplified look at the floodplains in Lisle. To review a detailed map of the floodplain, use the Village's Online Floodplain Map

FEMA Flood Insurance Rate Maps

The DuPage County Flood Insurance Rate Map (FIRM) panels were revised and are effective as of August 1, 2019.  To view how the remapping effected your property on the DuPage County Map Viewer, type your complete address in the search bar and slide the gold bar left or right between the previous December 16, 2004 FIRM and the current regulatory August 1, 2019 FIRM.  Regulatory FIRM panels are available from the following sources:

Letters of Map Amendment / Letters of Map Revisions

The Letters of Map Amendment (LOMAs) / Letters of Map Revisions (LOMRs) are issued by FEMA to clarify if a property is in the regulatory floodplain or to update the maps for new studies. Letters have been issued for individual properties as well as subdivisions, including:
  • Arboretum Glen
  • Arbor Trails
  • Peach Creek
  • Wood Glen Park

Copies of LOMAs and LOMRs are available at Village Hall.

For general information, please contact the Development Services Department at 630-271-4150.