Allright, the parents have decided against moving...
Well, we still don't have enough space, but we do have half a 2 car garage that is being used for, well holding crap.
My mom has made a suggestion of putting a room in the garage.
So I made up a slight drawing of how to split the garage so we could fit a room into the other half.
Well, with living in FL and being prone to flooding, we occasionaly flood from underneath the garage door, so I want to put a concrete block wall where the door is, I figured it's simple enough.
My questions are,
Do building codes require the living spaces to be so many more inches off the ground to prevent flooding? Or is that our decision?
What is the formula to figure out how many concrete blocks you would need for said area to be walled off?
Here's the drawing.
Green=Existing Wall
Yellow=Concrete Block Wall
Brown/Baby ****=Drywall

Dimensions of the garage door gap area after wood panneling is removed would/should be.
195" L
8.5" W
85" H
PS:
One more question,
What would I need to be able to put a concrete floater down to raise the height of the room up.