Giving it a bit more thought, it's super impressive. Given the age of the house, I wonder if it was designed on a computer or by hand drawings. Trying to model the structural elements to ensure it meets all engineering requirements would have taken a very creative and talented engineer.
Once you start moving away from flat planes and prisms, protecting against water ingress becomes a big challenge too. Also, regular houses have different structures that are able to move and expand, ie the brick veneer has a measure of independence from the timer frame, the roof is able to flex too. I can see some cracks in the rendering around windows, but I'm surprised the whole structure isn't filled with cracks. It would be interesting to know how it was made, and what the dome structures are made of. Maybe cement and fibre meshing?