I don’t want to leave it like that with the show house. We also chose a prefabricated house provider and a house type offered by them but were able to change everything in the interior (except load-bearing elements) and individually design the house with its rooms.
There are different kinds. Solid house builders whose catalog houses are only rough guidelines, on the basis of which more or less individual planning takes place. However, contact with the provider’s architect is limited. Often you only sit at the table with the salesperson, discuss, plan, then receive a draft with some delay, then it starts all over again. Homeowners with a concrete own vision might be quite well placed here. But it does not replace direct contact with your own architect. Then there are other providers where practically nothing can be changed.
for me the first draft was consistent
I’m sorry, but it is not! By far not!
the architect who has free rein and can do whatever he wants it probably won’t be. I simply know too well what I would like
The usual procedure is like this: The architect asks about your wishes. The answers are roughly “two bathrooms, dressing room, airy, open, special, luxurious, modern, functional ...” (Alternatively: country house, farmhouse, classic, rustic, fireplace, ...). Based on these wishes and given conditions (development plan, surroundings, tradition, budget, energy efficiency requirements, and much more), the architect then designs your house. You then iterate together on it until it fits, or you choose another architect.
It helps the architect a lot if you know what you want. But let him plan, it is his profession.
Perhaps some builders also have to be brought back down to earth (adjust wishes to the budget, the other way around is often not possible, I speak from experience).