Following decades of underbuilding and under-investment, the state of America’s housing stock, which is among the most critical pieces of our national infrastructure, is dire, with a chronic shortage of affordable and available homes to house the nation’s population. The housing stock around the nation has been widely neglected, with a severe lack of new construction and prolonged under-investment leading to an acute shortage of available housing, an ever-worsening affordability crisis, and an existing housing stock that is aging and increasingly in need of repair—all to the detriment of the health of the public and the economy. The scale of underbuilding and the existing demand-supply gap is enormous and will require a major national commitment to build more housing of all types by expanding resources, addressing barriers to new development, and making new housing construction an integral part of a national infrastructure strategy.