Research on Coupling Spatial Value and Performance: A Dual-Dimensional Evaluation of Multi-Category Plots in Wuxi’s Qingming Bridge Historic District

Against the background of promoting coordinated development between conservation and activation, this paper examines the Qingming Bridge Historic District in Wuxi. Drawing on theories of urban morphology and spatial configuration, the study classifies the district into multiple spatial categories. To quantify the relationship between heritage attributes and functional vitality, we propose a “Spatial Value–Spatial Performance” dual-dimensional evaluation framework. Methodologically, this framework integrates space syntax to extract spatial potential, entropy weighting to determine objective indicators, and the Coupling Coordination Degree (CCD) model to measure systemic interactions. Furthermore, spatial units are classified into three distinct typologies: Performance-Lagging, Value-Lagging, and Low-Level Synchronous. In response to the imbalance in the results from the quantitative findings, this paper proposes targeted renewal strategies. The core innovation provides a replicable quantitative tool, offering both empirical evidence and methodological references for the sustainable conservation and regeneration of historic districts globally.