It all started with a vision, as things tend to when you’re Wash Westmoreland. The director recently renovated the Craftsman where he’d lived for 20 years with the help of architect @johnfcolter. …

It all started with a vision, as things tend to when you’re Wash Westmoreland. The director recently renovated the Craftsman where he’d lived for 20 years with the help of architect @johnfcolter. But they were ready for the sequel. “At first, he wanted to add a workspace to his backyard,” Colter remembers. “But the more we talked about it, the longer the list of things he wanted became.” So, the duo improvised: The footprint would still be compact—728 square feet, to be exact—since most of it…