I have a friend whose house was designed using some of the principles set forth by [Christopher] Alexander. For example, one important idea is to go to the site and look at it and its surroundings, and situate the structure to take advantage of the site. Her architect built a wall framed with wood and covered with cardboard, with the windows cut out, that was the size and shape of the main living area wall. He and an assistant held the wall in place as my friend looked through the window, standing and seated, in the center of what would be the living room. They moved the wall this way and that, trying various angles, until the mountains in the distrance were framed in the window to my friend’s satisfaction. And that defined the location [of] that wall and its windows, and thus the living room and main house.
From a post on Christopher Alexander’s The Nature of Order at “Later On”