The Spanish civil war left a devastated country. The losses were not only material but also of knowledge. Both because of the bombings and because of the ideological struggles, some irreproducible cultural assets were lost. The historical archives of many cities are some of these assets. It happened especially in small towns since their lack of means to safeguard the archives. This circumstance makes difficult to investigate the architecture carried out at the beginning of the 20th century in the affected areas. However, these adverse circumstances should not prevent the cataloging and study of works of deserved importance. Through the architecture of Vicente Sancho Fuster, it is shown how several buildings designed by him have been located despite the lack of written consultation documentation. The first step carried out was the study of la casa Roglà, in Valencia, of which is preserved the project. Subsequently, the defining characteristics of this building were compared with two existing buildings in Burriana and Turís. Finally, through the common characteristics it has been possible to conclude that the authorship of the three buildings belongs to the same architect.