Procedural building for nice houses?

Hello i’m looking for a procedural building that can make anything other than boxes and skycrapes, or not involving Houdini.
I need to prototype small houses and villas for my game set in a fantasy medieval stylized style, i don’t need a complete inside/outside, since i’m gonna build with the modules i own, but helping getting interesting shapes since i’m not that great at creating nice looking houses.
I have a bunch already but i want to make some more.

Or it’s viable an easy system with two block shapes, a cube and an half cube covering the measures of the modules, to get a simple blockout of the house?
Thanks!