No, the concrete slab was already there; at first, we didn't have the necessary cash for it because the house became more expensive than planned. But I think everyone who builds a house knows this. To be honest, we also looked for almost 10 years before we decided on something. I would have actually preferred to have a heated conservatory, but that would have been way too expensive for our area. In aluminum, over 40,000. And I also didn't want to have that much debt until my retirement. I can recommend it with a clear conscience.