A San Francisco development firm hopes to start work this year on a $28 million housing and commercial project at a downtown Sacramento location. The Sacramento Housing and Redevelopment Agency has struggled with the proposed project's site for years. Domus Development wants to build commercial buildings, parking and affordable housing in the space between D and E Streets bordered by 12th Street. More affordable housing would be built at the other site of the project, between the C Street Alley and D Street at 12th Street. Sacramento Housing and Redevelopment Agency staffers are strongly supporting the project. SHRA officials note in a March 2 report that the agency and three separate d