Abstract. Housing is a basic need for all. The increasing numbers of population and income had increase in housing demand. Thus, it has led to the construction of apartments to meet the needs of people and to reduce the use of land to build residential buildings. From year to year, maintenance costs of the building are increased. To ensure the maintenance cost for apartment residence maintenance can be reduced, it is important to determine the factor that influence the maintenance cost of the apartment. This paper is to investigate and identify the factors contributing the increase of maintenance costs. The first objective of this study is to determine the factors that affect the cost of maintaining the apartment and meanwhile the second objective is to rank the factors that influence the maintenance cost of the apartment at Johor Baharu Tengah. To achieve the objectives of the study, the questionnaires were distributed to the parties involved in the management of building. Results of this study concluded that there are five factors that influence maintenance cost are the expectations of tenants, building age, building material, failure to execute maintenance at the right time and budget constraints.