Ted & I were both in Irvine most of the day. According to our neighbor, Michael, the steel guys spent a large part of the day measuring. They did get two walls put up behind the garage: the back wall, and one end wall. They have only put up one side of each, however. The end wall, on the left, in the photo, is covered by afternoon shadows.
We were grateful that they started with the area behind the garage because Ted & I finally looked at the kitchen plans carefully last night and decided it would be good to change the window in the kitchen from a long narrow window to a taller, more normal window. The architect had done it this way originally to fit in as many of our old cabinets as possible, but we ended up not being able to save them (we gave them away), and when we look at the kitchen (Ted made a 3-D mockup with the IKEA online app), there are enough cabinets and a window would probably be more useful. We will see if the architect thinks we can switch.