Offer for the surveying of a single-family house

We paid about 1,400 euros for our surveyor... now the garage has been completed and it is to be surveyed as well. The order was given to the surveyor in April 2018 and they are coming this afternoon to survey. Costs are determined based on the building value and amount to 500.00 euros (building with a value up to 50,000 euros).

We built in Bremen in 2014 and paid a total of about €2800, from the initial survey of the property, through the staking out at the start of construction, up to the final closing survey.

Just a question for understanding: Is an exact staking out of the building by a surveyor always necessary before construction begins? For example, if the plot is level, no building line is prescribed, and the plot is also large enough so that the planned building still has some "room" to the required boundary distance – then it wouldn’t matter if the building stands half a meter more to the left or right than originally intended? Or am I mistaken here?

You are right. Only Millimeterhermann cannot stand that.