For the past few years, the attitude that home structure should be mostly homogeneous — suburban, spread out, overly deferential to people who already own homes — has bubbled beneath the surface of America’s political rhetoric. Meanwhile, a constituency seeking more diverse, affordable housing in economically vibrant places keeps gaining traction. Most recently, several California cities have joined places like Minneapolis, Seattle and Oregon in chipping away at the single-family zoning regulations that have enshrined suburban-style detached homes as the dominant form of housing in America’s metros.

+INFO: Bloomberg