I noticed this building amongst the striking images that were doing the blog rounds of former Yugoslavian Spomeniks (monuments) built during Tito's regime of the 60s and 70s (see here, here, and here) photographed by Jan Kempenaers.
Presumably designed by either Bogdan Bogdanović or Gradimir Medaković (I'm thinking the latter but can't find any further information), it stands out from the other Slavic Monuments as actually being the town hall and community centre Kolašin, a small town now in northern Montenegro.
Resonating with the avant-garde architecture being built in the soviet union at the time (as documented here), the utopia being offered by these architects exemplifies for me what Owen Hatherley has described as 'nostagia for a time yet to come'