That's a good point, I decided to do some napkin math:

Sanibel Island has 7,821 housing units at an average density of 454.6 per square mile.

Median sales price of the homes in 2021 was $1.64M, average price was similar.

So a rough approximation of the value of the homes on the island alone is $12Bn. I am not sure how you would translate that into damage costs, but in a scenario of total destruction then $12B would be lost.

I have no real evidence other than visiting Ft Myers and Naples a few times, but I can tell you there is (was) a lot of very valuable property right next to the ocean. I don't doubt that if you look at the total distribution of damages that there is a long tail of less severe damage as you go inland, but the conservative estimates from my napkin math shows that it's likely a significant number (over ten billion) occurred just from properties on the small stretch of coastline.

https://en.wikipedia.org/wiki/Sanibel,_Florida https://sanibelrealestateguide.com/average-price-homes/