The second half of the 20th century brought more growth, as well as wear-and-tear and obsolescence, and the school's problems far exceed spatial deficiency. In response to this situation, the San Buenaventura Mission parish, under the leadership of Monsignor Patrick J. O'Brien, formed a Planning and Development Committee comprising parishioners, faculty, parish staff, and parents. In June 1994, the downtown firm of Mainstreet Architects and Planners prepared a conceptual master site plan for the mission properties, incorporating the design of a new school and an adjoining multi-purpose building which would serve both school and parish. This plan also necessitated the deconstruction of the convent and the two remaining Holy Cross Sisters moved into the larger St. Catherine by the Sea Convent, a short distance from the Mission.