This study clarifies the founding background and characteristics of housing rebuilding assistance subsidy programs by local governments after the Great East Japan Earthquake. The motivation and objective to prepare these programs are gap adjustment between survivors, which is based on achievement of fairness supported by government sector in Japan. This exposes the instability of governmental housing rebuilding assistance philosophy that encourages survivors' self-help housing reconstruction. This research offers insight for Japanese society to redesign the housing rebuilding assistance subsidy before next mega disaster.
