The Permanent School Building Committee voted Jan. 29 to proceed with a grade configuration of prekindergarten through Grade 12 for a proposed new school, according to Barbara Davis, chairwoman of the Holbrook School Committee. The decision will be sent to the Massachusetts School Building Authority as part of Holbrook’s application for state funding; the authority is expected to discuss the project in March. The committee also considered options of grades 6 through 12, 7 through 12, and pre-K through 8, and how each would affect possible future regionalization with Avon. A recent study determined that a pre-K through 12 building was the only option that could accommodate the regionalization. “This is the furthest we’ve ever been on a building project, and there’s a lot of momentum to keep going,” Davis said in an interview.