NEW YORK CITY—Mayor Bill de Blasio Monday laidout a 10-year plan to build or preserve 200,000 affordableapartments across all five boroughs. The $41 billion HousingNew York: A Five-Borough, Ten-Year Plan is expected to reachNew York's middle class as well as those with very low incomes.

Housing New York outlines the broad principles and thespecific policies city agencies will implement to reach Mayor deBlasio's goal. The plan calls for: 120,000 affordable housing unitsto be preserved and 80,000 to be newly built; affordabilityprograms to serve households ranging from middle- to extremelylow-income (under $25,150 for a family of four); agencies to useevery tool at their disposal to protect tenants in both subsidizedaffordable housing and rent-regulated housing from the tide ofderegulation, and to combat neglect and disrepair that threatensmany affordable buildings.

In addition, under the plan, the city will undertake ground-upneighborhood planning to identify corridors and communities withopportunities for more housing (both affordable and market rate),and coordinate greater density with necessary infrastructure; andthe city promises to streamline the development process and help tocontain construction costs by overhauling outdated regulations andremoving duplicative agency processes.