Living Car-Free in Arizona, on Purpose and Happily

Last year, when Andre Rouhani and Gabriela Reyes toured Culdesac Tempe, a rental development outside of Phoenix, the place looked pretty sweet. It had winsome walkways, boutique shops and low-slung white stucco buildings clustered around shaded courtyards.The only surprise came when Mr. Rouhani, 33, a doctoral student at Arizona State University, asked about resident parking and was told there was none.The couple…