Journal of Engineering, Project, and Production Management, 2026, 16(3), 2025-364
Multidimensional Evaluation of Old Building Renovation Schemes
Undergraduate Student, School of Management Science and Engineering, Shanxi University of Finance and Economics, Taiyuan 030006, Shanxi, China, E-mail: xu_yichong@outlook.com
Project Management
Received December 29, 2025; revised February 8, 2026; accepted February 9, 2026
Available online April 12, 2026
Abstract: In the backdrop of global climate change, the construction industry accounts for approximately 40% of global carbon emissions, making the renovation of old buildings a crucial pathway to sustainable urban development. However, existing evaluations are often limited to a single aspect, lacking synergistic analysis of carbon emissions, costs, and disaster risks. This research develops a tri-dimensional framework that integrates Life Cycle Assessment (LCA), cost accounting, and flood risk analysis. The LCA carbon emission factor used in this study is based on relevant standards and the latest data from the local power grid. Using a case study of an office building in Taiyuan City that suffers from structural aging and flood risk, it compares renovation and reconstruction strategies. Results show that the initial cost and carbon dioxide emissions of the renovation scheme are only 21% and 33% of the reconstruction scheme, respectively, demonstrating superior short-term cost savings and carbon reduction advantages. However, the reconstruction scheme can minimize flood losses by 77% under a 50-year return period rainfall scenario and optimize operational maintenance costs along with carbon emissions by over 25%. Therefore, renovating old buildings involves multidimensional trade-offs: renovation in suitable, low-risk, low-budget conditions, while reconstruction offers greater benefits in high-risk locations and supports long-term sustainability objectives. This study provides a scientific decision-making foundation for urban renewal, emphasizing the need to coordinate safety, economic, and environmental benefits within carbon neutrality goals. The flood risk analysis was validated based on a high-precision Digital Elevation Model (DEM) and historical water accumulation data to ensure the reliability of the assessment results.
Keywords: Life cycle assessment (LCA), flood, retrofitting, risk analysis.
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Citation: Xu, Y. (2026). Multidimensional Evaluation of Old Building Renovation Schemes. Journal of Engineering, Project, and Production Management, 16(3), 2025-364.
