An important Kenzo Tange design is facing an uncertain future in Japan’s Kagawa Prefecture after reports that authorities there are moving forward with the demolition of his 1964 “Boat Gymnasium” over disrepair and an apparent inability to fund seismic structural upgrades.

The Brutalist structure in Takamatsu was first shuttered in 2014 and has since been the subject of preservation pushes that unsuccessfully pressured the government to save the building, which shares many of the same stylistic elements as his masterwork Yoyogi National Gymnasium built the same year for the Olympic games in Tokyo. 

The news comes almost a year removed from the final fate of the Kisho Kurokawa-designed Nakagin Capsule Tower, which is now being disbursed piecemeal to private enthusiasts and public collections after a long back-and-forth came to a close with preservationists on the losing end. 

The local Board of Education, which manages the gymnasium, had previously approved a 1 billion Yen ($7.4 million USD) retrofit but was unable to finally pursue the project once construction costs swelled to an estimated 1.8 billion Yen (or $13.33 million USD), according to The Asahi Shimbun.

Many historic post-war structures have been torn down in Japan in recent decades, including several other of Tange’s standout designs. Kagawa Prefecture has yet to provide a timeline for the demolition at press time.