This study analyzes the cost and time performance determinants faced by construction companies in Indonesia. This research is considered very important because there are still variations in the results of previous studies that found the determinants of cost and time performance of construction projects. This research is based on Theory of Performance (ToP) developing and connecting six basic concepts to form a framework that can be used to explain performance and performance improvement. The current level of performance depends holistically on 6 components, namely: context, knowledge level, skill level, identity level, personal factors, and fixed factors. The population and research sample are construction companies in Indonesia with a sampling technique, namely Random Sampling. The research method used is Quantitative Research with multiple linear regression analysis techniques. Variables that affect construction costs are External Complexity (X1), Quality Management (X9), and Construction Resource Management (X11). Variables that affect construction costs and time are Construction Method variables (X12). External complexity, quality management and construction resource management will affect the level