800.00 francs for the surveyor is quite a significant amount. But my plot was already measured before building the house. For the carport, I don't think it's necessary now.
A building permit / planning permission is often required.
Local conditions vary. We built a carport on my parents' property. For this, we needed a building permit / planning permission. It was important to maintain the required distance from the neighboring property. Because of this, we had to adjust the access driveway slightly.
