Marischal Square is a mixed-use development project in Hong Kong仔, Hong Kong, with a total value of £1.07 billion. The project involves a range of facilities including offices, retail spaces, cafes, restaurants, and public areas, as well as a car park and a hotel. The project is part of the Aberdeen City Centre Masterplan and aims to provide new public spaces and enhance the environment of Skene's House and Marischal College. The project was developed by Muse, a national developer with regional offices in Manchester, London, Leeds, and Glasgow. The project team included Fairhurst Engineers, Halliday Fraser Munro Architects, and Studio 10 Services Design. The project used a collaborative BIM approach, which improved designers' understanding of BIM beyond Revit 3D modeling. The project also used VICO, a software with a large user base in the US, to combine 3D/4D and 5D models. The project's mobile application allowed for the use of model links to access modeling information and work smarter. The project saved approximately 90 pounds in waste by re-designing the fiber optic cables in BIM. The project also reduced the number of RFI (Request for Information) by approximately 40 during the contract phase, which is usually measured in hundreds. The project used a BIM model to coordinate design and construction, reducing on-site返工 or errors. The project also used 4D planning, which greatly enhanced visualization and helped with design and construction. The project used BIM to compare the planned model with the actual work completed, which was a powerful tool for making "value engineering" decisions. The project used innovative methods such as 4D planning, which improved visualization and helped with design and construction. The project saved approximately 60-70% in waste compared to previous projects of similar nature or cost. Overall, the project seems to have run more efficiently than its predecessors, which is a significant environmental victory, combined with the cost of waste management.