The Joaneda House is a restored example of a Second Spanish Period (1784-1821) structure. The home was built out of coquina in 1806 by Juan Joaneda. In the early 1900s, the home was a shop and teahouse, owned and operated by Mary and Gertrude Montgomery. The Joaneda House was donated by Elizabeth Morley Towers to the Historic St. Augustine Preservation Board, and restoration work was completed in 1977.
The full Wikipedia entry for the Joaneda House is available here.
The Joaneda House is located within Block 15, Lot 7 (B15L7)