Background
Osadca was born in Woloshchyna, Berezhany Raion, Ternopil Oblast, Ukraine.
Osadca was born in Woloshchyna, Berezhany Raion, Ternopil Oblast, Ukraine.
He earned a diploma in engineering and architecture at the Polytechnic of Lviv in occupied Poland in 1942. He emigrated to the United States in the late 1940s or early 1950s. Osadca founded his firm practicing under his own name in 1955 and was registered as an architect in Connecticut, Louisiana, New Jersey, New York, and Pennsylvania.
In 1970, his offices were located in Forest Hills, Queens.
His primary clients were Ukrainian groups in the Northeast United States and his principal works included Sacred Heart Convent (Astoria, New New York 1962), the Ukrainian National Home (Hartford, Connecticut.
1965), Holy Cross Ukrainian Cathedral Church (Astoria, New New York 1966), Saint Nicholas Ukrainian Cathedral Church (Passaic, New Jersey.
1969) and Saint Volodymyr Ukrainian Cathedral Church (Glen Spey, New New York
1969). Osadca"s most prominent work in New York City is Saint George"s Church (1977). The American Institute of Architects Guide to New York City described it as “A Greek Revival temple in stucco, with a mini-onion dome”, regretting the “domed symbol of the parish"s wealth and burgeoning membership: Miami Beach on 7th Street replaces the real Greek Revival thing.”.