2. As to environmental impact, the Project focuses on ecology protection and bio-friendliness: a number of “sponge city” technologies and measures are adopted to utilize and restore the ecological resources on the existing ground; the trees in the surrounding area are bypassed and protected, which not only preserves the existing 50+ tall trees, but also hands down the 67 years of historical memory of and affections for the Tianjin Architecture Design Institute. After the Project is completed, the trees will make a pleasant shade and the water will flow with murmur in the Institute, providing a beautiful and pleasing work environment for the employees with harmonious coexistence of human and nature; From green construction to green operation, during the whole process of the constructing and use of the Project, focus has been put on energy saving and consumption reduction, and the whole lifecycle carbon emission of the buildings is only about 48.8 kg CO2/m2/year;
3. In terms of economic effectiveness, the Project has reasonable cost, with incremental cost per unit area of CNY 130.5/m2 and energy consumption per unit area in the operation stage of 53.67 Kwh/m2/year, showing significant energy-saving effect. The pay-back period of investment on green building technologies and measures is about 5 years, indicating remarkable economic effectiveness;
4. As for technology application, all the healthy and green technologies and measures planned in the design stage of the Project have been implemented, and the green operation and maintenance platform designed and developed independently by our institute is used for the real-time monitoring of the indoor environment and various equipment, which is carefully maintained and managed by a professional operation and maintenance team, in order to ensure the continuous optimization during the process of technology application and operation and to realize healthy and green operation;
5. In terms of feasibility, this Project is a representative practice of green technology in urban organic renewal and an active exploration in the aspects of ecological environment, spatial environment, cultural environment, and health management, which has reduced 80% of operation cost compared with similar projects and could provide reference for similar projects. During the urban construction process converting from incremental development to stock upgrading in China, the sustainable design philosophy and green and healthy building-integrated technologies of the Project are of great value for popularization.