Flat roofs, bands of windows and simple cubic shapes. Those are some of the hallmarks of Paul H. Kirk's midcentury home design and they're all on display in this 2-BR, 1.25-bath in Hawthorne Hills that's asking $644K. The once AIA president designed this two-level home relatively early in his notable run as the Pacific Northwest's iconic architect. Upstairs, there are gleaming hardwoods, original 7-foot windows and a deck. Downstairs, you'll find both bedrooms, a family room and access to the classic backyard. Out back, there's a newly-constructed soundproof studio for your own creative efforts (or as a tiny guesthouse).