Flood Plain Development

The Ladue Floodplain Management regulations have been reviewed and approved as meeting federal regulations by the Federal Emergency Management Agency (FEMA). Any construction or land disturbance in a flood plain requires a flood plain development permit from the Building Department. The Building Official is the Flood Plain Administrator for the City of Ladue

Any new structures that would be proposed in the City of Ladue are required to have floor elevation, which would include the basement floor, at least one foot or more above the base flood elevation for the property that the structure is located on.  Any existing building in a flood plain that does not meet the flood prevention regulations may remain. However, if there are any substantial improvements exceeding 50% of the value of the structure, then the entire structure must be brought into compliance with the regulations. Also, the storm water regulations of the City apply to new structures and land disturbances in the flood plain, which is the same for all properties in the City.

Flood Zone Map
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Flood Zone Map img for web