Pocket neighborhoods prove that an edited home can take on many shapes and sizes and be located most anywhere. The term, coined by architect Ross Chapin, refers to clusters of houses that share common, car-free outdoor areas like gardens, joined backyards and even alleyways. The idea is to design the conditions that promote tight-knit communities--where neighbors look out for one another, where children can play safely, where it's not a big deal to ask someone to walk your dog or borrow a…