... at least the two slabs and sill plates are.
the framers are cruising along undetered by yesterday's 5.4 quake. after setting the sill plates they lay the top plates on top and mark the stud location and hold downs, this ensures that the walls will be straight and aligned properly. then they add the studs and beams per the spray paint on the slab and tilt up the walls. the houses go from no walls to walls in about 3 hours.