Thank you. Interresting idea. I am using the architect model in many different terrain models and sometimes I am having many copies in one terrain model, so I assumee that does not work. I also want to create the höuse in line withthe axis (makes it easier to draw), but the positions in the terrain model (-s) is seldom in line with the axis.
But your idea of a footprint gave an easy, but not perfect, idea. Just making a footprint of each house in the terrain model, separate from the house component, make it easy to reposition the house after reloading it.