Although much of the living area of K and L's new house at False Bluff will be elevated about eight feet above the ground, when you're going to have a house at the edge of the Caribbean, the entire outdoors usually ends up being living space.
The only enclosed space at ground level will house a staircase and the well and probably some storage space, all of which can be secured in the owners' absence. The remaining ground level "house" space, the part that's under roof but otherwise open, can include whatever outdoor amenities K and L decide they just have to have: hammocks, outdoor barbecue sets, tables, chairs...
The columns supporting the upper floor (and a well) were the earliest parts of the house to be constructed, as shown in the previous post. The first photo below shows the enclosed space (which is at the rear or south-western edge of the house) at ground level - and the exhaustive support structure...
...for what is now the poured floor of the enclosed - or upper - part of the house. Cespar Fox, the builder, takes a break up there with the Caribbean at his back.