In an ideal world, houses like these would be sympathetically modernised and preserved. Or a good architect would design replacements that were in keeping with the style of the originals. But it's probably only a matter of time before they are demolished and replaced with another concrete apartment block.
Tucked in behind the main streets in our neighbourhood are a few rows of old houses. I don't know when they were built, but I imagine that when they were new they must have looked well. Now they look terrible. When I first saw them I thought they were derelict, until I noticed the obvious signs of occupation like the washing hanging in the windows.