Hyewha-dong Villa Set, Seoul

All episodes — SKY Castle compound

📍Hyehwa-dong, Jongno-gu, Seoul

The drama's fictional SKY Castle compound was filmed at a purpose-built set in the Hyehwa-dong area of Seoul — its immaculate European-style townhouses arranged in a private cul-de-sac that perfectly embodies the sealed, competitive world the drama satirises.