My brother would have to finance... In my opinion, an ideal division would be best, right? You save money because the surveying becomes cheaper and the cadastral fees are eliminated.
What is the best way to proceed? Go to the notary, register it in the land register and then they divide it or do you have to go to a building authority? And does the surveying take place afterwards or before the notary visit? Sorry, but I have no idea about the matter...
The plot is rectangular, his (larger) house will be at the front towards the street, and mine smaller at the back end.