“墙体开裂、蟑螂横行”的老楼，从拆除到原址建成新楼，仅用46天

Core Viewpoint - The successful completion of the renovation project at No. 28, Sanlihe District, Beijing, demonstrates the effectiveness of the "original demolition and reconstruction" approach, supported by advanced construction technologies, resulting in improved living conditions for residents [1][5][6]. Group 1: Project Overview - The renovation project transformed a dilapidated building into a new six-story residential structure in just 46 days, showcasing rapid construction capabilities [1][6]. - The project involved extensive communication and collaboration among 54 households, ensuring that residents' needs and preferences were met through tailored housing solutions [5][6]. Group 2: Technological Innovation - The construction speed was significantly enhanced by the "intelligent construction-MiC technology," which allowed for 90% of the building's components to be prefabricated in a factory setting [6]. - This innovative approach reduced construction time by approximately 75% compared to traditional methods, while also minimizing construction waste by 75%, material loss by 25%, and carbon emissions by 30% [6]. Group 3: Policy and Community Engagement - The project aligns with national policies promoting the self-renewal of old housing, with No. 28 being the second pilot project in the region [5]. - The success of the project relied on thorough consultations and the development of customized plans for each household, reflecting a community-driven approach to urban renewal [5][6].