Applications are available for the Coolidge at Sudbury affordable apartments under construction on Boston Post Road for those age 55 and older. They can be picked up at the Senior Center, Goodnow Library, or the Planning Office in the Flynn Building. Information sessions will be held at 4 and 6 p.m. on Feb. 26 at the library. Applications must be postmarked by March 17. A lottery drawing will be held at the Grange Hall at 2 p.m. on March 26.