In the years 1977-1981 he was the General Landmark Conservator as a part of the Ministry of Culture and Art in the rank of vice-minister. Between 1978-1983 he was the head of the interministerial Commission on the Conservation of Landmark Municipal Complexes. During the 1980s he was a lecturer at the University of Zagreb. A member of the Board of Polish Architects, the Society for the Protection of Landmarks in Poland he was the chairman of its board between 1975–1983. Professor Zin was also a member of the Mexican Academy of Architecture. On 28 January 1998 the Cracow University of Technology awarded him an honorary doctorate.