noun
dilapidated house; abandoned house
Refers to a house that is run-down, uninhabited, or in a state of decay. Often implies a sense of neglect or long-term abandonment.
山奥に廃屋が一軒だけ残っていた。
Only one dilapidated house remained deep in the mountains.
その廃屋は何年も誰も住んでいない。
No one has lived in that abandoned house for years.
Compound of 廃 (hai, 'abandoned, obsolete') and 屋 (oku, 'house, building'). The spelling 敗屋 is a rare variant using 敗 (hai, 'defeat, ruin').