Availability and Accessibility of Open Data Relevant for Urban Planning: A Case Study of Zagreb, Croatia

Sustainable urban development (planning) relies on up-to-date spatial and other information. Much of this data comes from government organizations, agencies and institutions which are obliged to make it open by the EU Open Data Directive (2019/1024) and Implementing Regulation (2023/138). The City of Zagreb has established spatial data infrastructure (SDI) to support the provision of spatial open government data. This paper analyses which government data relevant to urban planning is available in Zagreb SDI, in which form it can be assessed and to what extent is this data in line with the list of adopted high-value data in Europe. The results indicate that a number of spatial data exist, but data accessibility limits its reuse potential - data mostly available as view only.