Hello,
I am looking for something similar to this:
I need very simple shapes to build different buildings:
-Floor
-Wall
-Floor with hole to put a staircase
-Staircase for 1 floor
-Staircase with height = floor height
-Wall with hole to put a Window
-Wall with hole to put a door
-Wall with hole to put a garage door
-Pillar
Edit :
I found my man, I will add some pictures when he will finish the job.