If You're Going to Move to Apalachicola...

... then please look into these three resources.  

First off, read Suburban Nation (and if you can, order it from here; usually not in stock but quickly available) to understand how and why this town works so well.

Next, read Classic Cracker (again, DTB usually stocks it) to see how houses should be built to suit this climate.  Don't settle for a slab-foundation house; mold can set in when the power (and air conditioning) has an extended outage after a hurricane.  Build raised with a metal roof and wide porch and you'll be ahead of the crowd on both your power bills and ongoing maintenance costs.

Finally, speaking of mold and dampness, contemplate this map and related comments regarding where not to locate.  Namely in old stream beds.  As good buildable lots have filled up, people have recently taken up building in these.  Clue-by-four time: When the contractor crew has to use hip boots to get around the building site (and yes, I've seen it), just cut your losses and halt construction.  Your sinus condition will thank you a few years down the road.

These sorts of public service messages shouldn't be needed, but well, evidently they are.