About Us Brandywine Living at Seaside Pointe is a premier provider of assisted living and memory care services in Rehoboth Beach, DE. Located in Sussex County, Seaside Pointe is scenically situated in the heart of one of Rehobth Beach's finest neighborhoods. Brandywine Living at Seaside Pointe is conveniently located just off of Route 1 and just minutes from the area’s famous boardwalk and beautiful beaches as well as the much traveled shopping outlets.