What is floodproofing? FEMA defines floodproofing as:
Floodproofing Structural or nonstructural changes or adjustments included in the design, construction, or alteration of a building
that reduce damage to the building and its contents from flooding and erosion. See “Dry floodproofing” and “Wet floodproofing.”
definition from:
https://www.fema.gov/pdf/fima/pbuffd_appendix_b.pdf
Wet floodproofing a residence would consist of installing flood vents, filling basements or crawlspaces and raising utilities above the BFE.