Both changed hands several times before the American Civil War. Most of this area was part of two plantations: Dell's Bluff, granted by the Spanish Florida government in 1801, and a tract eventually known as Magnolia Plantation, granted in 1815. Riverside and Avondale were developed out of former plantation land. Alternately, author Wayne Wood of the Jacksonville Historic Landmarks Commission puts it at about McDuff Avenue. It is sometimes given as Seminole Road and Belvedere Avenue, the northern limit of the Avondale Historic District. The boundary between Riverside and Avondale is not clear cut, even for those living in the neighborhood. It borders the Brooklyn and North Riverside neighborhoods to the north, Murray Hill to the west, and Lake Shore and Fairfax to the south. Johns River to the east, Fishweir Creek to the south, and Roosevelt Boulevard and the CSX Railroad line to the west. The neighborhood's boundaries are roughly Interstate 10 to the north, the St.
Riverside and Avondale are located to the southwest of Downtown Jacksonville along the St.
