The 1st Training Seminar of FLOOD CBA 2 took place in Lisbon, Portugal. The training seminar was held by FCSH – University Nova de Lisboa and the Municipality of Amadora. The seminar was supported by Prof. Edmund Penning-Rowsel and Prof. Dennis Parker. During the seminar, the present stakeholders were trained on the CBA methodology that was applied in the framework of the Pilot Activity in Amadora as well as the developed FLOOD CBA 2 Knowledge Toolkit and the Guidelines. The training material maybe found here.