A development group headed by HYM and My City at Peace yesterday won preliminary BPDA approval to build 466 apartments and condos, life-sciences space and a civil-rights museum on the long-vacant P-3 parcel on Tremont Street in Roxbury, under a plan that would include an acre of public space with a layout aimed at stitching the empty land back into the surrounding neighborhood - and creating wealth-building opportunities for its residents. Read more.