The Database of Southern Dutch Dialects (DSDD) is funded by the Research Foundation Flanders (FWO) as part of its medium-scale research infrastructures programme. The aim of the project is to integrate the databases of three dialect dictionaries: a) Dictionary of the Brabantic Dialects b) Dictionary of the Limburgian Dialects and the Dictionary of the Flemish Dialects. Dialectologists from Ghent University work closely with the Ghent Centre for Digital Humanities to prepare the ground for the aggregation of the three Southern Dutch dialect databases and their exploitation via a Virtual Research Environment (VRE) for digital lexicographical research. This VRE will make the newly aggregated DSDD available via a user-friendly website and b) to enable the DSDD for digital scholarship (including application programming interface (API) for data export) and testing of research tool interoperability with existing digital research tools (e.g. for geo-visualisation, qualitative lexicology and dialectometry). The Ghent team will work closely with the Instituut van de Nederlandse Taal with regard to the technical and linguistic sustainability of the DSDD. Through this collaboration interoperability with CLARIN will also be ensured.