Makeover! Dramatic Before & After: Season 4 Episode 19 (S04E19)

Japanese home reform. Homes are chosen from viewers who write in explaining unique problems, like small space, broken or damaged home, no bathroom, no insulation, too old, not elderly friendly, etc. The show showcases some of the worst living conditions before, then goes through a reformation to modernize the home and meet the needs of the owners. Alias name is "Before After"