I created this asset that creates a neighbourhood from input masterplan drawing. It actually consists of three assets, one created the actual masterplan geometry from the image, the other creates the buildings, and one more to scatter all vegetation arround. I'm still working on the buildings asset, actually changing it almost entirely, to allow for better performance on large scale blocks.
I was also testing the assets in Unreal Engine, trying to make them also to work good with Houdini Engine. I encountered a couple of issues, where the asset would act differently in Houdini Engine, compared to the actual Houdini, but overall it works like a charm.
Cheers!