This funky plumbing is a "Johnson Tee" for the dishwasher drain. We won't have anywhere to install a normal air gap, so this is required by code to prevent siphoning. There's a little air vent on the outside of the house.
The northwest corner of the "conservatory" (the architects' name, not ours). There will be a window seat below the windows on the left.
The north side addition ready for siding.
