This paper explains the way in which matters Construction-I and Construction-II have been given, in the Degree of Architecture of the Higher Technical School of Architecture in San Sebastian, during 2015-16, by using for the first time a Project Based Learning (PBL) active methodology. The methodology was implemented during the first four-month period in matter Construction-I, within the framework of the "training program of professors in active teaching methodologies ERAGIN" by the University of the Basque Country. At the conclusion, after an analysis of the developed work and taking into account the good performance results, teachers decided to continue applying the PBL methodology in matter Construction-II, in the second four-month period, making some minor adjustments in order to correct mistakes and to optimize its application. The final result was positive, and the experience will be useful to make a future common design of both matters, based on the same methodology.
