Uncoordinated development poses threats without comprehensive planning. A Washington state law mandates cooperation across sectors and governments for land use planning to promote sustainability, economic growth, and quality of life. The Seattle mayor believed the city's comprehensive plan was extremely important. However, housing affordability is often oversimplified and solutions are too narrowly focused on subsidized unit production. Better measures and a broader set of solutions are needed, such as reducing development costs, assessing land value taxes, and providing direct financial assistance to households.