Locally-constructed barriers to new housing development include beneficial environmental protections, but also laws plainly designed to exclude multifamily or affordable housing. Local policies acting as barriers to housing supply include land use restrictions that make developable land much more costly than it is inherently, zoning restrictions, off-street parking requirements, arbitrary or antiquated preservation regulations, residential conversion restrictions, and unnecessarily slow permitting processes. The accumulation of these barriers has reduced the ability of many housing markets to respond to growing demand.
White House
September 2016