I am a bit puzzled that now a draft is being discussed where the bathroom is almost public (at least in terms of location in a 4-person household), whereas Kerstin’s is already close to optimal.
A bungalow with a gable roof also looks like a shack to me, but maybe I’m too narrow-minded.
Everyone has their own perspective. A hip roof is plain and only allows for double casement windows. A gable roof is a gable roof, looks distinctly more modern, is more versatile, and offers the possibility of creating living spaces under the roof. That would NOT BE ALLOWED in your version!
Office + playroom... you can sugarcoat it and, for example, not declare it at the authority. However, if the house burns down or fills with smoke and your kids can’t get out, you can hang yourself.
Staircase right next to the front door
Kerstin, in this case the stair position is not so relevant, as there is no bedroom on the upper floor.
The developer wants the utility room to be at least 10m². Can that be done in combination with the large bathroom?
And what do you want? Or put differently: why does he want 10sqm?
The utility room should, according to the developer, be at the front of the property, as otherwise it becomes more expensive.
Expensive is relative at this size of house. Do you know how “expensive” the meter of supply line costs you? Maybe it’s only 15€/m, but maybe also 150€/m. Your driveway is more expensive.