Land planning - which house type/size is most sensible?

a general contractor, for example, recommended that we deal with this house

only on house manufacturer websites

Honestly, for your loose requirements regarding the number of rooms, 98% of the time you will be recommended a standard floor plan for a city villa or saddle roof house with a knee wall height of 1.00-1.40m. If that suffices for you, I wouldn’t get too confused here. If you want something special/thought-through/customized, please think about what is important to you in the floor plan. And I don’t mean: shower on the ground floor, kitchen facing south, children's rooms of equal size, dressing room on the ground floor, etc...

What I mean: where do I spend time on the ground floor, do I cook a lot, do I need a table >1.8m, should watching TV be separated, what do I want to have right after entering through the front door (room as cloakroom, large closet, visible stairs, etc.), do I want a table near the cooking area, what kind of bathroom area do I imagine, do I need seating windows on the upper floor, do I need an office, do I need a utility room on the upper floor, ...

Why so many questions? You don’t have little space for the rough requirements. Many floor plans will come your way that may not suit you but look chic. When signing a contract with a general contractor, you quickly sign off on a fixed floor plan. It’s worth knowing what your ideas are.

Since we were promised the property by the seller, I feel like I've only been browsing house builder sites ..

The plot is small and the possibilities are limited. Here is one option, simple, just to get a start with a south terrace:



Unfortunately, it’s not clear to me whether the surrounding roads are drivable or maybe just sidewalks. There isn’t much space left from this option up to the fence, I’m afraid. What do you mean by "nice garden"?

Or maybe rotate it?

Take a look around the floor plan discussions, there are tips on what you should and shouldn’t do or can do.