Elevation Detail   The pool terrace is covered in short-cropped lawn, to soften the hardscape of the 5’ wall above it; along this wall is a small waterfall, the length of the pool across from it, trickling down the surface of the wall beneath the coping of the patio—invisible (but audible) from the patio above and soothing to those who have made it one level down to the chaise by the pool, elevation view.