Abstract: Tlogosari Kulon is a residential space which also rapidly growing along with its commercial activities. This phenomenon promotes a shift in the utilization of residential space that originally built for private housing, now it slowly shifted into trade and service activities or even have mixed functions. The purpose of this research is to study the commercial activities effect of how it transformed residential space utilization in Tlogosari Kulon. Quantitative method will be applied with spatial analysis and quantitative descriptive technique that uses primary and secondary data. Subjects in this research are commercial actors around Tlogosari Kulon perimeter. Post analysis review has been made with no objections to the fact, also, some study findings have been found which are related to this residential to commercial shifts case in Tlogosari Kulon..