Subsidy programs are run by Japanese municipalities, and their pages are in Japanese. Most require residency or registration in the town.
Iwaizumi Town Sumail-zukuri Project Subsidy (Vacant House Clean-up Subsidy)OtherMax ¥100K100%
Iwaizumi Town, Iwate・FY2026・Within budget
Full subsidy for furniture disposal, house cleaning, weeding etc. for registered vacant houses (max ¥100K)
Conditions: Registered vacant house owners, work by town contractors, once per property
Program page ↗
Subsidy terms change every fiscal year. Always confirm with the municipality before applying.