Indonesia's energy consumption keeps increasing every year. The energy mix strategy is one of the ways that the government implement to reduce the use of fossil fuel. Therefore, there needs to be more infrastructure to increase the consumption of natural gas in everyday activities. The purpose of this study is to obtain the technical design and feasibility study of gas distribution network in Summarecon Serpong. The study was conducted with a basis of Summarecon Serpong's geographical and population condition. There are 2 tapping points determined on the network, so the network is divided into 2 systems. Technical calculations are carried out with hydraulic analysis using software. Pipe network use MRS and pressure regulators to measure flow rates and reduce pressure on each system. The pipes used are steel pipes and polyethylene pipes. Of the 2 systems designed, at the farthest point of the network the pressure is 0.12 bar and 0.29 bar. Technical drawings are based on the results of calculations and contain the required material and isometric drawings. Bill of quantity is based on technical drawings as a basis for calculating investments. The suitable selling price of gas for the project is IDR 7,500 for household customers and IDR 6,400 for commercial customers. This is indicated by the NPV value of 2.5 billion rupiah, IRR 11.55%, and PBP of 7.5 years.