In the context of Nepal, Nepal lies in the tectonic plate zone between Indian and Eurasian plates and due to the collision of these plates Himalayan mountain ranges were formed and this result number of earthquakes have occurred in past and in present. The geology is different as there is variation in latitude and longitude, which may result in different ground motion. As there is variation in ground motion there is a variation on earthquake intensity which may change the performance of the low rise buildings. And for the study, 10 different irregular low rise buildings are used. For the proper study linear static analysis is done to check time period of models and check displacement, drift and storey shear on linear static analysis. Later on, the model is checked and analyzed using nonlinear pushover analysis. Model is made nonlinear by making the beam as per existing condition using section designer and hinges were introduced on the beam and column as per FEMA-356 and ATC-40. For the execution of nonlinear analysis both push-in x and push in Y direction load is applied in controlled displacement mode. After execution of nonlinear pushover analysis different colour of hinges were formed and study. And maximum displacement, max storey drift and storey shear were found both in X and Y direction. Peak ground acceleration of Gorkha, EI Centro and Kobe earthquake is used for time history analysis, and different twelve ground motion is used for analysis, and after analysis results, max displacement, base shear, max storey drift was found and the result shown in graphs, which concluded that model having a same irregular plan but with different structure size is more seismically strong, after nonlinear dynamic analysis, model has less value of design value than demand value, so need to rectify and strengthen models.