Public Housing and Storage

These concrete public housing blocks stand in one of Yubari's outer residential districts, flat-roofed, with external stairwells and concrete balconies, small corrugated steel and timber storage sheds sitting alongside each entry. The construction type is standard for the peak population era: utilitarian, built to house mining families quickly and in volume. In unheated winters, Hokkaido's snowfall accumulates on roofs that were designed to be managed by occupants. Without that, the weight buckles the structure from above while moisture works through the frame from within. Yubari City, in Hokkaido's Sorachi Subprefecture, built its entire economy on coal. Mining commenced in the early 1890s under the Hokkaido Colliery and Railway Company, and by the 1953 citywide peak the industry employed around 19,500 miners, with 24 to 30 mines operating at mid-century. The 1960 national census recorded 107,972 residents. Japan's shift from coal to oil after 1960 triggered a steady contraction. Mines closed across two decades, and the last operating colliery, Mitsubishi Minami-Oyubari Mine, shut on 30 March 1990, ending a century of extraction. The city borrowed heavily through the 1980s and 1990s to fund a tourism pivot, constructing theme parks, ski infrastructure, and hotels. The revenues never matched the debt. Yubari filed for fiscal rehabilitation on 6 March 2007 with debts of around 35.3 billion yen, becoming the only city in modern Japan to do so. Public services were cut sharply in the years that followed. By the 2020 national census, 7,334 people remained in a city built for more than 100,000. The concrete housing blocks that once sheltered mining families now stand largely boarded or vacant, their weathered surfaces recording each winter since the last tenant left.