How much time elapsed for you between signing the purchase contract ...

Unfortunately, you have not yet explained why you want to wait?

Because we are not yet registered as owners in the land register, but the fact that this is not necessary has already been explained above by one of the friendly commentators. We still have to wait for the land transfer tax assessment and the certificate of no objection from the tax office, then we will pay for the property right away and then proceed. It would be nice if we knew how much money we will get for our current house before buying the new house. We are still trying to put all that together.