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Recognizing the fact that the region around the capital belongs seismically in one of the most vulnerable areas in the Republic of Croatia, the interdisciplinary geodynamic research was initiated which lasts for 18 years now. Since the establishment of the geodynamic network, ten series of precise GPS measurements on specially stabilized points of the geodynamic network were conducted in order to determine tectonic movements and related seismic activities in the wider Zagreb area. From all conducted measurements in the period from 1997 to 2015, the original geodetic model of tectonic movements was created. Following the analysis of geodetic and geological data, a unique interdisciplinary surface layers movement model of the research area was determined. During 2015, PSInSAR (Persistent Scatterer InSAR) technology was included in the research and was combined with the GPS measurements. The paper describes the combination of these two methods for the perod 2004 ÷ 2009 which resulted in denser and more reliable movement model in the urban part od the research area, especially in its height component, which is vey important for the safety of buildings.