What matters for project planning
The Fox River record is the most consequential thing here. Repeated flooding — a federally declared disaster in 1996, further flooding in April 2013 — means a meaningful share of local water damage arrives from outside rather than from a failed fixture, and standard homeowner policies exclude flood, which is insured separately. So establishing where the water came from can decide whether a claim responds at all. The city monitors river height, which is a useful check during an event. Any property with flood history should also be assessed for contamination left inside cavities by earlier ones.
Official sources
Verify the property, not just the city
Citywide context cannot establish a parcel’s flood zone, historic designation, permit requirements, soil conditions, or concealed construction. Parcel-level flood zone, historic-district status, and permit requirements should be confirmed with Kane County's authority before work begins.
Sources reviewed 2026-07-26. Both the DNR report and the city's flood page can be updated after this page was written, so re-verify before relying on them.