As UVa has grown, and the student body has sprawled across the city, housing has become an increasingly crowded affair. Rambling old houses have been set up to serve as home to a half dozen different students, and that’s putting stress on some of those once-quiet neighborhoods. Charlottesville’s new zoning ordinance aims to change that — it will put a cap of three on the number of unrelated adults that can live in one house in neighborhoods around UVa. So what makes three the magic number? Lisa Provence has an extensive story in this week’s Hook.