Subsidy programs are run by Japanese municipalities, and their pages are in Japanese. Most require residency or registration in the town.
Wakayama Existing Housing Condition Survey SubsidyOtherMax ¥50K50%
Wakayama
50% of inspection costs before sale/rental of Wakayama Akiya Bank properties, max ¥50K
Conditions: Those seeking akiya sale/rental contract. Wakayama Akiya Bank registered residential property. Survey by trained architect
Program page ↗
Subsidy terms change every fiscal year. Always confirm with the municipality before applying.