Subsidy programs are run by Japanese municipalities, and their pages are in Japanese. Most require residency or registration in the town.
Noto Town Permanent Residency Housing Subsidy (Used House Purchase/Renovation)Purchase / clearingMax ¥1M
Noto Town, Ishikawa
Subsidy up to ¥1M for purchasing used houses registered on Furusato Vacant House Information, and up to ¥500K for renovation (projects over ¥1M)
Conditions: Properties registered on Noto Town Furusato Vacant House Information; seller must not be within 2nd degree relatives. Apply before starting renovation. Granted as 90% cash and 10% gift vouchers
Program page ↗
Subsidy terms change every fiscal year. Always confirm with the municipality before applying.