The Board of Appeals will hold a public hearing Wednesday on a request to add a two-story addition to the rear of a home at 61 School St., and to build a one-story detached garage on the property. Other public hearings include a request to build a one-story L-shaped addition to a home at 288 Franklin St., and a request to build a porch on a property at 16 Summer St. The board will meet at 7:45 p.m. in the aldermen’s chamber at City Hall.