Explore details about location Llantwit Major Road. Llantwit Major Road is a location situated within the Vale of Glamorgan alongside other areas such as Claude Road West, Summerland Close, St. Lythans Road. Additionally, some smaller parts of Llantwit Major Road include specific areas like Ysticl-Garu, Squire Street, Heol y Cawl adding to the diversity of its landscape.