Downers Grove has both FEMA-mapped floodplains and areas the Village identifies as Localized Poor Drainage Areas. These low points can collect runoff even when a property is outside a designated floodplain, which means flood-zone status alone doesn’t tell the whole story about a property’s exposure to water.
The age of the building can complicate the situation too. Downers Grove has homes spanning multiple generations of construction, including many built during the postwar decades. Older plumbing configurations, previous basement renovations, and layers of different building materials can make determining the full extent of a loss more involved, especially when finished spaces are affected.