The entire roof of the church was removed and replaced in 1976. In December of that year the church was solemnly consecrated by Cardinal Timothy Manning, the Archbishop of Los Angeles. In 1982 the mission marked its bicentennial. A new three-story school building, with pre-kindergarten, kindergarten, and grades 1–8, located at the base of the hill behind the Mission, was dedicated in January 2001. The school also houses the Serra Chapel for Eucharistic Adoration, adult classrooms, a parish/school kitchen, and a large assembly hall used as a school auditorium and for large parish gatherings and one Sunday Mass. The assembly room was named after O'Brien, who was the pastor of the church for 25 years until his sudden death in 2005. The mission celebrated its 225th anniversary with a year-long series of events and activities during 2006–07.