 Archaeologists including Dr. Charles Fairbanks, Dr. Kathleen Deagan and others have found evidence of human occupation on the property dating back to the 16th, 17th, 18th and 19th centuries.A sub-surface sampling survey of the city conducted by Dr. Deagan in 1976 placed the Ximenez-Fatio lot at the approximate center of the 16th century Spanish settlement.In 2015, she observed that the property continues to invite exploration — in part because, "there is occupation going back to the founding of St. Augustine, and so it's possible to really look at the whole spectrum of the city's occupation."