That was not clear from what you wrote: You only mentioned 3 children's rooms, kitchen, 2 bathrooms, and an office, but not living and bedrooms (hence the inquiry and confusion).
You don't even want to plan a technical room... insofar, the new house will not function independently.
You are right. I deliberately did not mention that because I thought it was clear when I talk about a single-family house. But I have learned that I expressed myself incorrectly. Sorry for that!
One reason why we meet with many prefab house providers is, for example, the floor plan.
Of course, I assumed a utility room + technical room, as well as kitchen and living room.
But my mistake! Mea culpa!
What did you mean by that?
I mean, we see it as an advantage that money regularly "comes in" through renting. Hence refinancing. Of course only minimal but still more than if I do not rent. That’s the thought process.
The problem is obvious and in your planning, that you mix a lot of things. While an extension belongs to a dwelling unit, you want to build an independent house as an extension. If you take independence literally, you would probably have to split the property, possibly split it ideologically. Storage space belongs to a house as well as technical rooms. Connections are routed to the house. Of course, you can privately still use the old basement of your old house, but economically this results in a dependency. Simply using technical facilities from the old building and later tearing down the old building is not an option. A new building must comply with the new Renewable Energy Act regulations. A house should also work for a later separation (sale, rental... old or new).
Except for the basement usage, it was also thought to be completely independent. Of course, also with its own technical facilities and its own connections to the street. Apart from the adjoining wall, I don’t want to connect anything.
I assume the 8.5 x 8.5 results from the calculation of the floor area ratio or the gross floor area ratio?
At 8.5 x 8.5, you have about 55-60 sqm of living space per floor. Have you calculated what room areas come out if you assume you don’t want to build a 3-story tower? It’s not like you need a 50 sqm all-purpose room. But 4 bedrooms at 12 sqm each, a small bathtub and small shower bathroom together 12 sqm, utility room of 8 sqm, storage room of 2 sqm, office of 8 sqm, and corridors including stairs of 20 sqm leave me 22 sqm for the rest (kitchen, dining, and living room).
I would actually like to build a 3-story tower. :-) Whether that’s possible, I don’t know.
But so far, I’m assuming 2.5, like the current house. So 2 full floors + attic.
So far, we have considered this possible (and, of course, also have been offered it that way).
This reads ideal: in terms of area, ideal for 3 children's rooms. It is the most comprehensible, most ecological, and with the subsidies, the most economical and ultimately the most obvious to have the rooms upstairs built out for the children, even if it means moving out to a holiday apartment for half a year and doing everything fancy in the meantime.
I would not want to live with two people in this cramped living area, and the garden by definition is more than a 3-meter strip.
I think you currently have too many disadvantages due to the old property and are fixed on the idea of the new construction. You should be able to foresee the consequences.
Therefore, I advise against the mutilation of a nice residential property.
That makes me think and those are really good pieces of advice!! Thanks for that!
But this “just move out for half a year” is not so easy either.
No, what do you mean?
That they want something once they have set their mind on it.
Thanks for the floor plan. With two areas it would of course be tight. But we still have the attic.