The 1990 population census of the Directorate General of Budget, Accounting and Statitstics of the Executive Yuan revealed that there is a 13.29 percent rate of unoccupied residences in the Taiwan area. In other words, about 1.5 out of every 10 residences is standing empty.
而根據行政院主計處在民國七十九年所進行的台閩地區人口普查結果顯示，台灣地區單位住宅空屋率平均為百分之十三．二九，換句話說，十間房屋中有近一間半沒人住。