There are several reasons. 1. It shows how the proposal responds to the existing site A development application should demonstrate that the proposal responds appropriately to the site's existing conditions. A steep block is fundamentally different from a flat block. If a proposal significantly modifies the existing levels, Council needs to be able to understand that modification. A landscape plan showing only proposed planting doesn't provide that information. Showing e

Industry Foundation Classes (IFC) provide an open format for exchanging BIM information between different software platforms. Rather than asking every consultant to work inside the same ecosystem, IFC allows each discipline to continue using the tools best suited to their work while still contributing to a coordinated project model.