Flood insurance deductible

Also keep in mind that the insurance doesn't only cover the structure of the house, but the contents as well and any demolition that may be required if the house is flooded. So the recorded value of the house isn't necessarily indicative of the cost for replacement.

Well there is a part for content vs building. However, also note that NFIP is an ACV on Content and RC on building UP TO $250,000.

If you want RC on the home in excess of $250,000, you would need an "excess flood" policy.

So if his home is $275,000, the max amt NFIP would pay is $250,000 since its capped at $250,000 for residential properties. Conversely, content is ACV ever time.