Many cities — and the entire state of California — are considering ending single-family zoning, or apartment bans, to improve housing affordability and address historic injustices in housing and land use. Opponents of these reforms argue that “upzoning” for higher-density housing will do the opposite, raising housing prices and harming lower-income communities and communities of color. Dr. Daniel Kuhlmann of Iowa State University ran the numbers for the first major city in America to end single-family zoning, Minneapolis. The prices of some single-family homes do indeed go up, but as Professor Kuhlmann argues, the price of some parcels must rise in order to encourage redevelopment and produce more affordable housing options for the city as a whole.