The Vacuum Preloading System represents an effective soil improvement method for accelerating the consolidation process, particularly in addressing soft, saturated clay soil conditions. This method has emerged as a common alternative solution to conventional preloading techniques, offering notable advantages in terms of speed and efficiency in resolving soil-related challenges. Typically, this system is equipped with a comprehensive set of monitoring instrumentation, including settlement plates, piezometers, and vacuum gauges, which play a crucial role in assessing the performance of vacuum preloading. This paper aims to present an evaluation of the performance of vacuum preloading applied in a project located in the northern coastal area of Java Island. The evaluation focuses on a single set of monitoring systems within a designated cell. Interpretations will be drawn from settlement plate monitoring results using both the Asaoka and Hyperbolic methods, as well as from piezometer readings reflecting pore water pressure distribution. Additionally, the assessment of vacuum preloading performance will be based on the achieved degree of consolidation. Analysis of the interpretation results from four settlement plates and one piezometer indicates that the degree of consolidation achieved after vacuum preloading surpasses the design criteria. This outcome suggests that the vacuum preloading system effectively accelerated the consolidation process and improved soil conditions in this project.