This paper presents an approach demonstrating a social-media-embedded GIS visualization platform for bringing citizens to landscape planning online as a community’s participation medium. This case study was performed in a virtual space representing Bernburg, Saxony Anhalt in Germany, prepared in mid-2014 and online participation took place from November 2014 to January 2015. With the official data set provided by the state surveying authority of Saxony Anhalt, an online 3D virtual city model was built with a data manipulation process and add-on communication features. In the first step of this project, as a pilot program, students from Anhalt University and other universities were invited to the program and asked to visit the online 3D virtual site via a Facebook page. They were asked to explore the virtual space and leave comments on the spot where they were interested in within the planning site. Subsequently, a survey was conducted for the participants and examined the usability of the application and the built-on features. This case study illustrates the first-time assessment of the presentation and participation application using social media and web GIS application for Geodesign purpose and will be the foundation for further research.