Landslides are natural geodynamic processes in which a mass of soil, rock or crushed material moves down a slope under the influence of gravity. They occur as a result of the combined influence of geological, climatic and anthropogenic factors, and their consequences include: damage and destruction of roads, residential buildings and infrastructure, loss of agricultural land, endangerment of human life and property, etc. For the purposes of developing the Spatial Plan of Sarajevo Canton for the period 2003–2023, a Terrain Stability Study of Sarajevo Canton was carried out, which collected location data on landslides and formed a comprehensive database. This database was subsequently updated through detailed research within the framework of developing regulatory plans, and today it represents a key tool in spatial planning. Thanks to it, it is possible to: identify risk zones, apply appropriate protection measures, ensure safe and sustainable development of settlements, etc. The geometric representation of the landslide in the database is defined as a polygon, with the following attributes: landslide name, location, municipality, landslide status (registered - red; remediated - green). The database is available to the competent administrative authorities (municipalities, ministries and other institutions) via the WebCity GIS application, using standardized web services: OGC WMS and OGC WFS.