This study uses the concept of new quality productive forces to examine how digital investment can create value in construction supervision. Drawing on the literature, we develop a five-stage conceptual model that uses project records to trace changes in capability. In this model, competitive advantage depends on whether clients value the service and whether the gains cover the additional costs. Public accounts describe how Shanghai Jianke developed its own platform and how Tianyida configured a vendor platform. Firms coordinating multiple projects can start by standardizing inspection and verification procedures. Firms with limited resources can pilot a system for tracking corrective actions. The share of issues verified and closed on time, the quality of verification and the cost per issue can guide decisions about expanding the pilot. The model has yet to be validated across firms.