The article presents a method of preparing input data for 3D visualizations. The authors implemented the proposed procedure when they were working on a visualization, with use of Autodesk 3ds Max software. The test object were the ruins of a historic grange that belonged to the Nostitz family in Mściwojów (Mściwojów commune, Jaworski district, Lower-Silesia Voivodeship). After surveying the area and analyzing the data, using MicroStation with a geodetic application MK (Mapa Kontekstowa – context map), a Digital Terrain Model (DTM) was created along with contour lines, with use of Data Acquisition (a tool in some programs of Bentley). Next, the models of spatial objects were created using the authors’ software Vital Landscapes Tools, developed during the EU CENTRAL EUROPE program. It was the basis for development of a visualization of current land management, using the software Autodesk 3ds Max. This allowed the design of the future land management of the historic grange so that the landscape balance is maintained. The data processed in this manner can be used for photorealistic visualizations in Autodesk 3ds Max or other graphical software.