If I were to narrow it down I'd be after dark age england or Germanic.
Well, fortunately there's lots of information on the Late Roman and Anglo-Saxon periods in England. I imagine you'll want photos and illustrations, so here's a few off the top of my head.
If you want to go that early, H.H. Scullard's
Roman Britain: Outpost of the Empire has some nice illustrations of Roman villas.
Another cheap book, but with a broad time frame, is
Picturing the Past: Through the Eyes of Reconstruction Artists by Brian Davison. It has lots of good pictures.
Reconstructed archaeological sites are a good source, and you have a lot to choose from in England. After a quick search West Stow and Jarrow Hall seem to popular ones and have their own websites. There's even a 3D rendering of a West Stow house here:
http://blogs.carleton.edu/anglo-saxon-material-culture/2016/03/10/anglo-saxon-grubenhaus-reconstruction/These sites & museums typically put out publications.
What you're looking at generally is a use of timber which seems to have been characteristic of Anglos-Saxon buildings following the their advent in Britain. A type of building with a sunken floor,
grubenhäuser, becomes characteristic. You see a lot of these in the stereotypical "dark age" offerings from different miniature companies. This design was introduced to Britain from the European continent, and there are also some interesting sites like the Hitzacker open-air museum in Germany:
https://www.archaeo-zentrum.de/index-uk.htmlBut not every building across Western Europe after the 4-5thC looked like this. Some really interesting sites are the
castros of north-west Spain/Portugal... like the Castro de Monte Mozinho. This was built around the first century B.C. and was inhabited sporadically until the Middle Ages.
If you're not overly picky this should give you an overall idea, there's a lot more detail one could go into if you really wanted to.