The original purpose of the notable building in Skhidnytsia, Ukraine appears to be tied to its function before the German invasion in 1941. Historical records, such as those from Wikipedia, indicate that a significant building in Skhidnytsia was constructed in the late 19th century and utilized until 1941 (Wikipedia).

If you have a specific building in mind, such as one now serving as a resort or balneological facility, further details might be required to specify its original use more accurately. Skhidnytsia has a rich history, including an "oil era" beginning in the late 19th century with the drilling of the first oil well named "Magdalena" (Cities 4 Cities). Therefore, some buildings may have originally been connected to industrial or residential purposes linked to this period of development.

If you could provide more details or specifics, I can refine the search to get more precise information.