The main objective of this paper is the whole design of a Net Zero Energy Residential Building. It is much difficult to understand the overall concept of a net zero energy building. As all, we know that the building has a significant impact on the energy use and the environment which in turn effect on the development of the present era. The proposed site for the Net zero residential building is in Lakkidi near Palakkad, Kerala. A complete design has done for the proposed NZERB using Indian standard codes. We have selected the site for the proposed building and various climatological surveys were conducted. Structural and functional design of the (G+1) residential building is completed and detailed estimates of conventional building and zero energy building has been prepared and conducted the comparative study.