Most Japanese homes are small (by US standards anyway) and close together. People are polite and don't want to do things that will annoy their neighbors. That's the stereotype anyway.
The District Court in Nagoya ordered the forcible clean up of this gomiyashiki (garbage house) that neighbors have filed complaints about for the last ten years. This three-story, 180 square meter home, inhabited by the 62 year old son of the elderly owner, is being cleaned up against his will. Authorities estimated it would take at least 3 days to clean up the cardboard boxes, furniture, and other items which have overflowed from the house to the sidewalk. The resident is quoted as saying, "While I don't agree with the court's decision, it can't be helped".
I don't know how big of a problem hoarding is in Japan, but in the US there are television series devoted to the problem. They bring in psychologists, organizers, and cleaning crews. The families of the horders cry and still the hoarders can't let go of their "treasures" and often times just plain trash. It makes me cringe, as much about the health hazards as the disorganized mess itself. Are there any gomiyashiki in your area? What can be done about them?