Coastal erosion is among the major threats for coastal dwellers, where the hard structure has been favourably applied to protect the shore. Applying coastal protection structures require adequate knowledge of local beach dynamics. This research attempts to quantify the impact of the structures toward shoreline and current pattern changes in Kuala Nerus, Terengganu. In 2016, coastal protection structures were built on the beach of Kuala Nerus, after a series of erosion events. Two timelines of coastal protection structure were chosen, the 2004-2016 (pre-construction) and 2016-2017 (post-construction). Combined images from Google Earth and Unmanned Aerial Vehicle (UAV) were used and measured using Digital Shoreline Analysis System (DSAS) to quantify the shoreline changes through statistical analysis of End Point Rate (EPR) and Net Shoreline Movement (NSM) on the multi-year shoreline layers. Numerical model of current movements has been made using MIKE 21 software to determine post-construction current changes. The result showed that most of the eroded shore during pre-construction has recovered with post-construction of the structure. However, some parts of the shore were eroded due to current circulation- altering structure. The findings of this study are significant in assisting the planning of effective coastal protection structures especially in monsoon dominated coast.