This study takes the industrial architectural heritage of Study Area A as its research object and systematically analyzes the impact of urban renewal plans on the appearance of historic buildings. Combining field research and questionnaire surveys, it explores respondents’ evaluations of the value of industrial heritage and their willingness to renovate it. SketchUp is used to record information about industrial heritage, and JX-4 is used to create a digital elevation model (DEM) of the study area. A three-dimensional point cloud model of the study area is constructed, and its effectiveness is examined through accuracy evaluation. Using multiple linear regression, the study investigates the varying degrees of contribution and differences among the various elements of urban renewal plans to the vitality index of the study area. The explanatory power of macro-level influencing factors on the heat index of Study Area A shows significant differences (R² = 0.814). The standardized regression coefficients for commercial facility density (β = 0.554, p = 0.002) and transportation facilities (β = 0.401, p = 0.001) are the highest. Although the effects of land use mix (β = 0.247, p = 0.012) and Simpson’s index (β = 0.312, p = 0.001) were relatively weaker, they were still statistically significant, indicating that functional complexity and ecological diversity have a synergistic effect on the revitalization of historical building facades.
