Reconstruction and Preservation
Much of what is visible today at Mission San José was reconstructed by the Works Progress Administration in the 1930s. The Archdiocese of San Antonio and San José parish are responsible for any maintenance and preservation work needed on the church structure itself. About 80% of the church is original. The National Park Service, with help from taxpayers and the park's friends group, Los Compadres, is responsible for the the extant structures and historical landscape.
The granary and the convento were still standing, but required stabilization, and some reconstruction work. The large convento housed at least two missionaries, and any travelers or guests. Living space was on the second floor, while the first was made up of storeroom, and a kitchen and refectory. The granary was one of the first structures to be restored. The San Antonio Conservation Society purchased, first, the doors and then the building when it was on the verge of collapse.
With few exceptions, the protective walls with the Indian Quarters built into them were reconstructed in the 1930s above the original foundations. The stone used was not limestone like the originals would have been. The Grape Arbor trellis was meant to enhance the Spanish Quarters located next to it.