The Japan Housing Finance Agency's home loan interest rate for renovation “Flat 35 Renovation” will be relaxed from FY2020. Promote effective use of existing stock and support for renovation. The current system requires that existing houses be refurbished to meet the standards of the Flat 35S, a preferential interest rate system for new construction. The interest rate is 0.5%, provided that the renovation is to improve performance such as energy saving, earthquake resistance, barrier-free, durability and variability, and that the renovation cost will be more than 2 million yen. Pull down.