Vienna geography question

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I don't think this is related to Vienna. There is an expression coming from former East-Germany, Plattenbau, for apartment buildings constructed from pre-fab concrete slabs (Platte).

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https://de.wikipedia.org/wiki/Rossauer_Kaserne

Hi Avi -
...there is a police barracks/kaserne in central Vienna near the river (I think) whose name begins with an 'R' like Rossauer

This?
https://www.viennadirect.com/sights/rossau.php

I'm still digging (out of interest) for the other term but the closest I can find right now is "Gemeindebauten" - which is a type of public housing built in Vienna in the 1920's and 30's. Probably not what you were looking for?
https://www.platformspace.net/home/the-house-that-anti-fascism-built-the-hofs-of-red-vienna

there is a big police barracks off the Schottenring near the old Borse, in an old castle. Pretty cool location.

Districts = Wiener Gemeindebezirke of which there are 23. We stayed in Meidling 2 years ago in the 12th Bezirk.

Thanks everyone for your input on this --

the first reply is the most helpful for me, I think.

I was at a talk about the "Iron Broom" underground resistance gang which after WWII sought revenge against figures in the city authorities that had helped the Nazis, and the general situation was that the workers in the outskirts, who were generally unionist and communist sympathizing, opposed the bougies who lived in the city center and were more aligned with the Nazi parties.

It seems that part of the reason for the barracks was to scare the workers into keeping out of the city center,
because it was a common remark gathered by the historian/investigator that residents of the center were annoyed or scared of having people who lived in the Platten hanging around their streets.

One of the colorful figures associated with Iron Broom tried to break into the barracks and steal the police payroll from the safe in the chief's office, and was only caught because someone had forgotten something and went back to the office to retrieve it and ran right into the partisan/resister/thief.

Recall that the vast majority of Wieners were pro-Nazi so their portrayal even to this day of the left/resistance is still often described in terms of gangs and thievery and thugs. (Instead of resistance.)

I had trouble making myself understood and understanding the speaker but he insisted that the term platten for the working-class neighborhoods in the ring around the city was common in Bavaria and related to other words for balloon or blob.

Note also that there is a caserne immediately behind the Hotel de Ville in Paris that was built by Napoleon some decades earlier; the one in Vienna was considered outdated by the time it was completed.

https://fr.wikipedia.org/wiki/Caserne_Napoléon

https://fr.wikipedia.org/wiki/Liste_des_casernes_de_Paris

The antisemitic organization with its own newspaper called Der Eiserne Besen
in the white washed version of history ceased to exist, or was absorbed into the NSDAP, in 1938,
but some kind of secret/underground group continued or reformed after the war.

https://en.wikipedia.org/wiki/Antisemitenbund