像造汽车一样造房子，危旧住宅46天原地变新房

Core Viewpoint - The article discusses the innovative approach to urban renewal in Beijing, specifically focusing on the successful renovation of a nearly 50-year-old residential building using smart construction technology, which allows for rapid and high-quality rebuilding, addressing long-standing issues faced by residents [3][5][10]. Group 1: Project Overview - The renovation project of Building 28 in Xicheng District, Beijing, was initiated in September 2025 and completed in less than six months, showcasing a significant reduction in construction time compared to traditional methods [5][6]. - The project utilized a "one household, one policy" approach to cater to the diverse needs of the 54 resident households, offering six different housing layouts tailored to individual requirements [5][6]. - The building, originally constructed in 1978, faced numerous structural issues, prompting strong resident demand for renovation [5][6]. Group 2: Smart Construction Technology - The project employed the "Intelligent Construction-MiC Technology," which integrates high levels of industrialization and smart manufacturing, allowing for 90% of construction processes to be completed in a factory setting [8][9]. - This technology enabled a construction speed that was 75% faster than traditional methods, while also reducing construction waste by 75%, material loss by 25%, and carbon emissions by 30% [9][10]. - Each module of the building was assigned a unique digital identity, facilitating maintenance and management throughout the building's lifecycle [9]. Group 3: Policy and Financial Innovations - The project introduced a collaborative funding model where residents, the government, and property units share costs, making the renovation financially feasible for residents [6][10]. - The approval process for the project was streamlined, achieving a 90% reduction in the time required for necessary permits and documentation [6][10]. - The initiative aligns with national policies promoting urban renewal and the transformation of old housing, with various provinces adopting similar strategies [12][13]. Group 4: Future Implications - The article highlights a shift in urban development in China from expansion to enhancing existing housing quality, with "original demolition and reconstruction" expected to become a mainstream model for housing renovation by 2030 [12][13]. - The successful implementation of this project serves as a replicable model for urban renewal in densely populated areas across China, potentially influencing future housing policies and construction practices [10][13].