Jumoyo Village is prone disaster area which caused by lahar flood. Lahar flood material from Merapi mountain eruption damaged many house in inhabitan residents, infrastructure, and farms. This disaster also threaten the lives of people who live in the building. Becasue of that, the building must give the safe feeling for the resident. This research will analyze about the endurance of resident building against lahar flood which consist of two step. First step is to analyze the building residence and inhabistans based on elevation from contur line use QGIS software, which is open source and user friendly. The building which will analyze is first floor and second floor building residence. Inhabitans of fisrt floor building is as assumed about 4 people for building < , 8 people for building , and 6 people for second floor building. Second step is to analyze the structur building residence failure toward pressure from lahar flood using SAP2000. From the second step is get result about the number of buildings and inhabitans, that can affected. The number of the building that can be affected is moe less about 103, and the number of inhabitant is more less about 664 people. The second step is get result about the number of building structure failure in fisrt floor and second floor building which caused by the size of coloumn and bar, and also the pressure from lahar