Plast Craft Games products have become available on Waylands. Whilst their scenery lacks thickness in walls and appear flat and undetailed, it nevertheless struck me that their desert buildings could work as bases for Chaos Dwarf houses. They reminds you somewhat of Mesopotamian dwellings and have those sloping walls that suits CDs well. Not that they would be hard to scratchbuild.
They also have fantasy stuff and PVC sheets of brickwork, stonework, herringbone paving and more.