Actually, the Mission State Historic Park IS part of the original Mission. The building is not a replica; it was one of the barracks. Later, after secularization, it was a private home for the Neary and Rodriguez families. While it has undergone many changes, including be turned into a Victorian house on the inside, the adobe walls date from the Mission period.

The chapel, on the corner of School and Emmet streets, IS a replica, built in the 1930s.