The aim of the project is to update and complete the Geospatial Data System created in the Municipality of Serres in the framework of the implementation of previous co-funded projects and its integration with other applications used by the Municipality’s services (such as the Geographic Information System of Municipal Property). Particular emphasis will be placed on urban planning data for the entire Kallikratia Municipality of Serres. Furthermore, through the updating and completion of the above data, the connection of descriptive data available to the Municipality’s services with the spatial data will take place. Finally, the appropriate interfaces (interfaces) will be created, so that all the data can be processed by the executives of the Municipality of Serres and some of them are accessible to citizens and other institutions via the Internet.