What do you do when you and the kids have outgrown your 11ft (3.3m) wide Brooklyn row house? What do you do when you love where you live and don’t want to move further out to get that valuable space you need? Why you extend up and down but do it cleverly, making effective yet frugal use of the space. If the result is “a home that is not just larger, but livelier” then I guess you and the kids will love living in your special piece of Brooklyn. By Office of Architecture.