A 28,000 SF expansion at Boston College High School in Dorchester, which will enhance educational and athletic access for students, has been unanimously approved by The BRA Board.

The $12 million expansion at the private school located at 150 Morrissey Boulevard will be connected to the existing Boston College High School campus by a breezeway adjacent to McNeice Pavilion and at the east end of Cushing Hall.

Cadigan Hall will be a 2.5-story addition and will include a gymnasium, a 125-seat lecture hall, student activities area, band classroom, music practice rooms, a choral room, three art classrooms, and a fine arts department office.

The project will create 75-100 construction jobs. The development team includes Boston College High School as the developer and Ai3 Architects.