Pollok House's South Wing forms part of Robert Rowand Anderson's masterful 1890 extension that enhanced the mansion's capacity for the elaborate entertaining essential to Highland clan culture portrayed in Outlander. This wing demonstrates how Scottish country houses adapted to changing social needs while maintaining their essential aristocratic character and function. The South Wing's rooms feature the same high-quality materials and architectural details as the original Georgian house, creating seamless spaces for the formal dining, drawing room entertainment, and private family life central to Highland society. While Castle Leoch's interior scenes were filmed at Doune Castle, the South Wing provides authentic examples of how Highland estates balanced public ceremonial spaces with private family areas. The wing's design reflects the ongoing prosperity and social importance of families like the Maxwells, who maintained their estates and traditions across centuries of Scottish history.