B Building maintenance is one of the most important aspects of the building's life cycle, the level of feasibility of building functions is closely related to the results of building maintenance carried out since the completion of the construction process. The mosque is one of the worship infrastructure buildings that must be considered as feasible during the service period of the building. Therefore, the purpose of this study is to look at the level of user satisfaction with the building conditions of mosque services, especially with regard to the maintenance and maintenance of mosque worship buildings. Research data collection was carried out with a questionnaire to 150 respondents from 30 victims of mosque worship in Tangerang City. The data obtained is calculated using simple regression using the IBM statistical package for social science (SPSS) V22.0 software. The results of the study prove that there is a significant effect of the level of satisfaction with the condition of mosque worship buildings at 67.6%.