Architectural Digest spoke to Associate Professor of Urban Planning Michael Manville about Apple’s pledge of $1 billion to address California’s housing crisis — including devoting 40 acres of company-owned property in San Jose to affordable housing. Much of the area is currently zoned for detached single-family homes, a “very inefficient use of valuable land,” Manville said. Increasing the housing stock by allowing for more density would surely face resistance from homeowners who want to preserve the atmosphere of their neighborhoods and the soaring value of their property. However, Manville argued, “if your desire to have your neighborhood remain the same is imposing extremely high costs on other people in the form of high rents, there has to be some give.” He concluded, “Land is finite, but housing is not. … We must build up, so that the same plot of land of one home can accommodate many families. You know, the elevator also exists in Silicon Valley.”