This study aims to clarify the effectiveness and challenges of the building regulations of the Cliff Ordinance. A survey was conducted among architects' offices in the Awa region regarding the reconstruction of houses damaged by Typhoon No. 15 in 2019 and other storms. The results are as follows : 1) Within the regulated scope, the building regulations of the Cliff Ordinance are effective. 2) The building regulations of the Cliff Ordinance impose economic burdens and reduce livability, so they have a certain effect in restricting the location of buildings near cliffs.