[QUOTE=whatami]
It’s not just finished floors. It’s any structure on the property. A structure being defined as a building that has walls (generally agreed to be three walls) and a roof. So a garden shed, for instance, which is located on your property, and is in the flood zone, would trigger the lender to require flood insurance on your property.
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Possible, but unlikely unless the structure is included in the appraisal and goes towards the collateral value of the loan. A garden shed or a pool, probably not so much. A barn or a detached garage is more likely. If the lender isn’t lending you money based on that particular structure then they don’t care if it gets destroyed. They have no vested interest in it’s survival. If you buy a home that’s excluded from the flood zone and then build something afterwards that is in the zone your lender isn’t going to give two hoots.