I know nothing about these buildings, other than when travelling to Rocks by Rail for some filming a couple of weeks ago, I new when I saw them I'd have to stop on the way home to take photos. Even the design is new to me, although they are modular, so presumably these can be found elsewhere.
I'm not even sure where I found them as it was the edge of a village. However, if it helps, all these images are full-size if you click on them. There is some great modelable detail here.