The document outlines three major redevelopment projects transforming downtown Boston's Downtown Crossing area: Millennium Place 3 adding 256 residential units and retail space to a 15-story building; The Kensington, a 27-story building with 381 units and retail from Kensington Investment Company; and the Millennium Tower and Burnham Building project from Millennium Partners Boston containing 500 residential units, 200,000 square feet of office space, and 230,000 square feet of retail space.