An apartment building boom is unfolding in the U.S. This is a welcome signal as many cities remain stuck in a housing shortage. The shortfall in home supply has pushed many people into budget-stretching rents. Many of the new multifamily structures feature "luxury" amenities, such as pools and easy access to transportation. Washington policymakers are now attempting to address regulations that slow the pace of homebuilding, in an attempt to resolve rent inflation concerns.