This research project aims to address the main question on how currently available open access satellite optical (multi- and hyperspectral) and radar (SAR) remote sensing data together with the most advanced methodological approaches and techniques for data processing and analysis, may better support small islands’ decision-support systems and overcome their constant data scarcity, by successfully contributing to develop suitable, reliable and cost-effective frameworks for LULC changes detection and mapping. The main goal of this research is therefore the development of remote sensing-based multi-sensor and muti-techniques approaches for land use/land cover changes detection and mapping in small oceanic islands, in order to support spatial (or emergency, in case of natural hazards) planning and operational management in these territories.