All landmark-protected buildings are being preserved, and the renovation process will be coordinated with landmark advisers and the Berlin Monument Authority (LDA). Buildings and structures critical to the site’s identity will be integrated into the planning to safeguard its history and background. Even trees, defining lines of sight, and historical road surfaces will be preserved as much as possible, although accessibility concerns and spatial needs cannot be overlooked. Buildings that are not sustainable or structurally suitable, that have no particular architectural significance, or that are problematic from an energy or climate perspective will be replaced with new buildings.