Most everything built in coastal south florida since andrew is wind proof. Each county has it's own codes though. MD has zones that vary from 165-195mph. Others are less stringent. (from gooooogle) In addition to wind speed requirements, Florida's building codes also require impact resistant windows and doors in areas within a mile of the coastal mean high water line and facing basic wind speeds of at least 110 mph.
Very few places are really built to deal with storm surge. And now inland flooding from rain can be the biggest threat.
I want to build an underground house. With enough solar panels you could be using almost no juice from the power company. About 15 years ago I dug a 20X24X6' hole for a camp. I used to keep it tarped with a tent under it, but never put a real roof over it. I went down there last year to get a load of the dirt I had dug out, and there were trees head high growing in the hole. That was the first time I had been there since Michael. But if I ever build a real underground house down there (on the pond land), it will be higher up the hill. I'll trade pond view for a few more feet of elevation. Not to mention the closer to the road you are, the less the power line coming in will cost.
You wouldn't even have to sink the house too far down in order to get the benefits; you could do a "garden level" or 4-5' below grade and then use the displaced earth to build up a berm and get your home more or less below grade that way. If I ever buy a piece of property and build on it, I'll do exactly this and keep part of the south side open for a walkout basement.
You could easily install enough solar capacity to run your house and even a modest indoor grow. You could affordably get enough batteries to run the house overnight, especially if the grow is timed to run when the sun shines.
Having a battery is necessary to run your home independently of the grid because the inverter needs a stable source of power to make alternating current. Depending on the cost of the power line, it might make more sense just to have more panels and batteries for the same cost and run the whole place off grid. That way, the power company can't screw you by buying your power at wholesale and selling it back at retail!
All in all, this plan sounds pretty awesome! If the solar panels on your roof cover it nearly completely, you will notice a substantial reduction in energy cost to cool it. Doing the underground or berm things will also contribute. In this way, the heat pump you install for climate control could be much smaller than a conventional home of the same footprint.