This project entitled "Regional development, settlement systems, urban-rural development and transformation of space" was made for the needs of the Spatial Development Strategy as a document on the state level. After the analysis and evaluation of topics, and a survey conducted in all county physical planning departments on regionalization measures are proposed for the development of the Spatial Development Strategy in the segment regional development, urban-rural and transformation of the village. When creating a project led by the principle of uniform or uniform spatial development of the whole Croatian territory and respect European documents.