After 1945 the bathhouse took on many roles. At various times it housed a party office, a county council guesthouse, a police substation and a community service center, and it was sometimes rented out for wedding banquets. Eventually the hot spring trade in Beitou declined and the institutions moved out. The last police station left in February of 1988. The empty building was then occupied by residents as housing, some rooms were rented out as a film prop store, and the structure deteriorated quickly. Then, in 1994, teachers and pupils from Beitou Primary School, working on a local-heritage project, stumbled upon what looked like a ruin and realized it was the old public bath. Their petitions at first went nowhere, but the teachers and students organized signatures, local people joined in, and in 1997 the Ministry of the Interior designated the building a monument. It is now a municipal monument. The Taipei city government restored it for more than 111 million New Taiwan dollars, drawing on old photographs and the memories of local elders. It reopened as the Beitou Hot Spring Museum on the thirty-first of October, 1998, as the first museum in Taiwan saved through community action. Workers even found original hot spring plumbing during the work, including water-dividing pipes, ceramic pipes and the base stones of the old baths.