The house on picture 4 is very typical style for houses built in the 50s in Norway ... and then they have decided to expand the house a bit.
It's also quite typical for this area (Finnmark). During the end of WWII, the Soviet army was pushing back the Germans - and they responded with burning down every single building making sure the Russians wouldn't get any pleasure from any infrastructure as they were advancing, hence there was of course a big building boom in Finnmark in this time period.
Those houses aren't very good though, too little insulation for one thing. There was limited resources and lots of buildings to be built in this time period, so they tried to build as cheaply as possible. Pre-war-buildings are often (but not always) more sturdily built, though also often insulated with newspapers, sand, etc ...
(giving myself a modest 1% upvote for better visibility)
Good comment
Thanks for an informative comment @Tobixen
I was learning a lot of how these houses were built.
Best regards
@Siggjo
Thank you very much for comments and information :)