Located on the right bank of the Da river in Quynh Lam ward, Hoa Binh city, the Ngoi communal house was recognised as a provincial-level historical and cultural relic in 1999. Upholding traditions, locals often come to the place on major festivals, full-moon days, and the first day of each lunar month, burning incense to honour deities and pray for favourable weather and good harvests.