Native designs decorate the interior.
A quadrangle of buildings around a patio included dormitoies for young workers, kitches, shops for weavers and other crafts people, a winery, and storerooms. The wheat was thershed at the mission and ground into flour at the grist mill, which wad the first water- powderd grinding mill in california . Mission San Antonio was also famous for the palomino horses which were raised here. At one time the mission had over 350 palominos. The water was used to turn a water wheel that operated the grist mill .