New construction: Land registry costs and notary costs

One thing is still not really clear to me. How is it with turnkey construction including the purchase of land from the developer? It is basically a purchase contract for e.g. 500k€(140k land, the rest house). What notary fees apply here for what? Are only 1.5% on the 140k€ due or what should be expected for notary + land registry entry?

On the value to be notarized (500k€)

Notary fees are always based on the notarized value. The rule of thumb 1 to 2 % is to be understood as meaning that with low contract values it tends more towards 2 % and with high values more towards 1 %. The fee for registering the mortgage depends on the amount of the mortgage.