An earthquake is one of the most disastrous disasters with a large impact and can even cause casualties and the disaster is difficult to predict. Sewon Subdistrict, Bantul Regency is one of the areas prone to earthquakes. Evidently in the May 27, 2006 earthquake the damage was very severe. The purpose of this study, among others, was to determine the vulnerability of buildings in nonengineering buildings in Sewon Subdistrict, Bantul Regency which included such as to find out the construction of non-engineering houses in Sewon Subdistrict, Bantul Regency according to or fulfill the regulatory and constitutional requirements . The method used in this study is a descriptive method by directly observing the field using existing primary and secondary data and questionnaires on workers and implementers, then also observing the way development is carried out by workers in the location. From the results of the research that has been done, there are still many houses that are not very earthquake prone, the vulnerability of this building is in the structure of the building and roof truss of the building. Moreover, the vulnerability of buildings in these areas is due to the poor development carried out by workers, such as a lack of understanding and experience of workers regarding the practice of building earthquake-resistant houses and lack of government oversight of this.