The front of the mission (what you see from the parking lot) looks quite similar to what you would have seen in 19th century.
The church and bell tower are on the right and there is a long archway extending to the left of the church (there were 24 arches when this was an active mission, 19 of which have survived).
Santa Ines was one of the last missions built, operating from 1804 to about 1850. During the mission days there was full quadrangle of connected building. The front part of the quadrangele (the buildings behind the arches and corridor) consisted of quarters for the padres and offices in the "padre's wing." There were workshops, a tannery, repair shops, a hay barn and stables around the sides and back. The Indian Housing was to the left of the quadrangle, in several separate long narrow buildings.