Ngoc Ha Communal House

Ngoc Ha Communal House located at Alley 158, Ngoc Ha Street, Ba Dinh Ward, Hanoi City, is National-level historical and cultural relic, was ranked on 15/02/1992. The communal house has a history of formation from quite early, around the end of the Le Trung Hung; the current architecture bears the mark of a major restoration in 1898 and was rebuilt by the people in 1952 after the years of war.

The communal house worships Saint Huyen Thien Hac De, a deity revered by the people with a legend that he had merit in assisting the Ly dynasty in resisting foreign invaders and protecting the peaceful life of the people. The communal house is located on a plot of land that was originally an islet in a lake, with a traditional architectural layout including Nghi Mon (ceremonial gate), communal courtyard, Ta Huu Mac (left and right corridors), Dai Dinh (main hall), Phuong Dinh (square pavilion), and Hau Cung (rear sanctuary).

Ngoc Ha Communal House is closely associated with the history of Ngoc Ha flower village, a famous place in the area of Thap Tam Trai west of the Thang Long imperial citadel. Every year, the 19th day of the first lunar month, the people organize the Ngoc Ha – Huu Tiep festival, which includes a ceremony to carry the Saint's tablet up Nui Sua for worship, expressing community relations and the long-standing tradition of ket cha (village alliance). Together with Huu Tiep, creating a close-knit community in Tam Giap Festival of Xuan Bieu – Ngoc Ha – Huu Tiep, which was inscribed in the National List of Intangible Cultural Heritage in 2026.