On the example of plan and construction of The Fish Hatchery Centre in Łopuszna, near Nowy Targ, constructed during the Second World War, exact analysis was carried out concerning forms and regional stylistic of its buildings. During the occupation Polish architects generally were not able to operate freely. However, many of them used every opportunity to make good and valuable architecture and they succeeded in designing excellent buildings despite severe restrictions imposed by Germans. The Centre in Łopuszna and some other projects were significant constructions free from the influence of German architectural style. Polish architects consciously and consistently tried to design buildings according to the characteristic features of Polish architecture. In that way, on the basis of the appreciation of local culture, the great architecture was made, which certainly is a flagship example in Polish architecture.