Hello Benjamin,
It is clear what an architect does. The actual question was whether I save money by hiring an architect beforehand who does the work from 1-3 or 1-5 if I award the contract to a prefabricated house builder at the turnkey finishing stage.
No!
Every provider has their own architects or freelancers they work with. It only benefits them for the building permit if they happen to work with the same software as the previously involved architect, which is rarely the case. The later execution planning is also based on this planning. So if different software was used, the "new" architect has to transfer everything into the system of the respective provider.
It is further complicated by the fact that the architect’s services are included in a mixed calculation, so these costs are considered by every provider to keep their accounting correct!
You only "save" additional architect fees if you award the trades yourself afterwards. Only then will further costs from "your" architect arise because they have to create the execution planning. You need this so that you can have the bill of quantities created, which in turn causes costs.
One more info for "That One" –
it is a common statement from providers that with "free" planning the structural engineering must be recalculated. This is – with all due respect – nonsense, because even for standard houses the statics are only created
after submission of the soil report. There can only be a rudimentary static calculation before, because not every building ground yields the same results regarding the statics!
Rhenish regards