Small house on large towel plot

I would really recommend you to think more and more outside the box and especially to imagine your life "without" the teenager(s), because that will probably be the case soon.

That was indeed also our idea when building. When the boys moved in at 17 and 19, we built each of them their own apartments with their own front door, bathroom, and kitchenette. One has now moved out and the apartment serves as an office and guest apartment. If money gets tight, we could offer it on Air BnB. (With me, you never know, I just took a three-quarter year creative break and founded a start-up in November...)

I'm getting the urge to build again......

Me too.

The dining area is really .... modest. Something has to be done about it. However, I don't want the area to be reduced to a pure dining area, it is also half living room.

Could you design the kitchen as a U-shape so that the dining table can be turned 90 degrees in the room when needed (=visitors with several people)?

I just thought of something regarding heating technology - a central masonry heater. It warms the kitchen, dining area, living area, hallway, guest room, as well as the stairwell and the upper hallway. The area shown in orange will be the heat storage mass; a glass door can be installed facing the dining area, possibly two, but that costs efficiency. Of course, such a stove does not have to be square; rounded edges or angles are suitable for the hallway and guest room. The guest bathroom will have an infrared heater as a mirror, the upstairs bathroom as well as the bedroom and children’s room each get a decentralized air conditioning unit. Whether the rooms downstairs also need to be climate-controlled is a matter of personal preference. Costs for such a masonry heater including chimney with a premium insert and electronic combustion control (offers over 90% efficiency) are around €25,000. If you calculate about 70 sqm for heating and 40 kWh/m2 p.a., you need 2800 kWh. A cubic meter of spruce wood has 4.5 kWh. Roughly 4 kWh are lost as combustion inefficiency in the masonry heater, which is about 700 kg or roughly 3 cubic meters (solid measure). Clearly, the masonry heater prefers beech since it glows longer, so there is somewhat lower efficiency and your own heating behavior also plays a role. Add one solid meter (stere) for that. The operating costs are therefore extremely low - especially since you harvest your own heating energy on the plot for the house construction. A 20m spruce trunk with 30cm diameter provides you with roughly one year of heating energy according to this rough calculation. Please double-check the math yourself; this is just from memory.

Hello and thanks in advance to everyone.
Unfortunately, I am quite stressed this week.
I will answer everything over the weekend.

Since you probably have to watch the budget a bit, I would save the balcony first. No one sits on the balcony when they have a nice garden. I have many such "appendages" around here and have never seen anyone sitting on them.

Since you obviously have to watch the budget a bit, I would first cut out the balcony. No one sits on the balcony when they have a nice garden.

From the sauna, under the shower, and with an ultra-short path outside onto a lounger completely undisturbed on the balcony – I find that completely understandable. I also make the direct access outside from the bedroom – you need a balcony on the upper floor if the hillside location can’t compensate for it. I would rather cut the garage or build it later.