For the more urban, town center neighborhoods in American cities, the following reforms are essential: Make it far easier to build accessory dwelling units (ADUs). Reform motor vehicle parking: Eliminate off-street parking requirements (couple this with adding far more on-street, priced parking). Require that new residential projects unbundle the price of parking from the price of housing. Require relatively large businesses to offer a parking cash-out program for employees. Expand the ease at which developments or businesses can share parking spaces.