Core Viewpoint - The transformation of Xiaosongtao Lane into a "green sample" for urban renewal is underway, focusing on material recycling and photovoltaic applications [1] Group 1: Project Overview - Xiaosongtao Lane, located southeast of Xinjiekou, covers an area of approximately 10,000 square meters and is the first residential area in Nanjing to implement "retain, modify, and demolish" [1] - The project is part of the city's fourth batch of urban renewal pilot projects, integrating low-carbon design into the historical context of the old city [1] Group 2: Renovation Details - The renovation of Building 15 has been completed, and updates for Building 27 (former residence of Wu Zhilian) are set to begin, with two multi-story residential buildings planned for resident relocation on the northern side of the site [1] - Building 15, now featuring a historical protection plaque, has been transformed into a bright and airy space with a steel structure skylight that adjusts based on indoor temperature and humidity [1][2] Group 3: Sustainable Practices - The renovation preserved original brick walls, wooden beams, and purlins, with removed bricks and tiles being recycled on-site [2] - The roof has been equipped with a waterproof and insulation layer, maintaining the building's appearance while enhancing energy efficiency, and solar photovoltaic tiles have been installed to reduce carbon emissions [2] Group 4: Design Innovations - The design team from Southeast University reorganized the street layout to improve ventilation and lighting, creating east-west ventilation corridors and maintaining tall trees to enhance public green spaces [2] - The introduction of a high-efficiency space concept increased the ceiling height by 80 centimeters, resulting in a 60% increase in living space, with some residential units achieving a ceiling height of 3.6 meters [2] Group 5: Future Plans - The city will continue to advance the renovation of residential projects such as Shiliu New Village, Chenghe Village, and Liuhe Wenmiao area, implementing "retain, modify, and demolish" strategies to create more livable spaces [3]