BOSTON — The Zoning Commission for the city of Boston has approved the Planned Development Area development plan that will provide zoning regulations for the city’s Parcel 24 project. The project consists of the construction of a 325-unit, mixed-income housing development in the city’s Chinatown neighborhood on a block bounded by Hudson, Kneeland and Albany streets. Approximately 50 percent of the residences will be affordable, and will include 70 rental apartments and 66 to 99 condominiums. Another 156 to 189 condos will be market rate. The transit-oriented development will be close to rail and bus lines, as well as LEED certifiable. The project is being developed by a joint venture between locally based organizations Asian Community Development Corp. and New Boston Fund. Part of the project’s financing is coming from New Boston Fund’s Urban Strategy America Fund.