Generating constructions is very different from generating terrain, so I'd probably try a 2-step process where the building generator can be seeded by the terra

Generating constructions is very different from generating terrain, so I'd probably try a 2-step process where the building generator can be seeded by the terrain relief. But it's not trivial for sure. See also https://github.com/mxgmn/WaveFunctionCollapse#higher-dimensions https://github.com/mxgmn/WaveFunctionCollapse#higher-dimensi... because it's relevant and looks awesome :)