The house floor is the exposed surface of the concrete slab that is the actual foundation. It has, however, been treated with a special acid formulation that changes the actual chemistry of the top half-inch or so of the concrete and colors it in a variegated, mottled way; the picture at the right is a cheat: it is not our actual floor, but a PR photo that looks very much like our floor turned out.
We use that because in most of our thoroughly amateur photos, the floor color does not show up
well, owing to brightness and contrast issues.
But, so you know we're not faking it, here, on the left, is a photo of our floor, taken during construction (in fact, one of the workers visible is the floor stainer).
(When the job was finished, things did look more like the PR photo--the colors muted slightly
from the flamboyant tones appearing here.)
To the right is a portion (about half) of the "wine cellar" at Owlcroft House. (If you recall the floor plan, this is the west wall of the Tank Room).
The frizz down the left side of the picture is one of the plants in the greenhouse area (shown below) ; the black splotch in the lower left is a too-inquisitive poodle pup.
To the left is a cockamamie-angled view of a part of the greenhouse in the Tank Room--it is two feet deep and runs the full 16-foot width of the south wall. The boards sit atop plastic 55-gallon drums painted flat black and filled with water, to provide extra heat capture (from the solar input through the windows) and temperature stability.
OK, now on to the house proper.