Brief synthesisThe Citadel of Ho Dynasty built in 1397, composed of the Inner Citadel, La Thanh Outer Wall and the Nam Giao Altar covers 155.5 ha, surrounded by a buffer zone of 5078.5 ha. The Inner Citadel constructed of large limestone blocks represents a new development of architectural technology and adaptation of geomantic city planning in an East Asian and South-east Asian context. IntegrityThe integrity of the property is guaranteed by the areas of the three major components which represent the characteristics of the Ho Dynasty: the Inner Citadel, the Nam Giao altar and part of La Thanh Outer Wall. The archaeological excavations in the property reveal well-preserved structures contemporaneous with the Ho Dynasty. The nominated section of La Thanh Outer Wall is in the process of being similarly protected.