If
1) buildings are built to handle extreme wet for up to 10 days
-- elevated, reinforced concrete/block construction
-- no drywall
-- tile or Coadstone floors and walls
-- metal/plastic/resin cabinetry with gasketed doors and sealed stone, concrete, recycled glass or other impervious table and countertops
-- minimum two stories so one level is less likely to be destroyed
-- encased, surface sealed wiring instead of in-wall wiring
-- HVAC on roof, tankless hot water on upper floor
-- roof hatch
And
2) furnishings on a similar to Japanese model -- light, highly moveable, intended to be recycled/renewed after a few years of use and made of natural, compostable material
This could alter a devastating and regular sequence of events to a frustrating and irritating regular sequence of events.
White collar work would need to move to a remote server/no paper environment. Retail survivability can be improved with water dams (big bladders full of water, filled before storm, like sandbags) and concrete construction. After a flood, the mud removal and cleaning will take a couple weeks, but that's faster and easier to do with a pressure washer and Lysol than removing carpet and sub-flooring and drywall. Assume floods would require some replacement, but not everything.
It will require a building code and zoning. But we know how to make cast concrete and 3d print concrete structures. This is an issue of process far more than technology. Nothing I said is at all difficult, it just requires an adjustment in how we think about the technology we use.