Project Homeownership - Basement, Ground Floor Plan - Tips

That’s why you have a professional plan something like that (house and technology), so everything makes sense. Why should someone here jump to conclusions, tell you something, and then the professional implement it differently?

The professional will implement it as the client instructs him, no matter how nonsensical or sensible it may be. He is a service provider. And not every professional judges everything correctly. There is also not just one right way. Who says the professional chooses the best way? That’s why it’s good to get a few opinions online. Right?

Based on your information, not even a professional could plan this. Let alone a "service provider" or even us here.

What ceiling height does the room have?
How big will the riser shaft be?
Where should the fresh/exhaust air valves of the controlled residential ventilation system go; where should the outdoor/exhaust air, what pipe dimensions, distributor size?
How many (electric) cables/circuits run where, where is the house connection box located?
Where is the wastewater located?
Where do the water pipes run?
Where does the hot water come from?
Where are the kitchen and main bathroom located?
Is there underfloor heating? If "yes," where should the heating circuit distributors go?
Have you thought about space for installations (e.g., expansion tanks, filling station)?
What is "WKW"?

You won’t get anything out of me now telling you that you can definitely fit your controlled residential ventilation central unit including distributor on a 260cm wall if at the end 20 pipes of 75mm each don’t fit through the riser shaft planned at 30x30. Somehow your building services will be accommodated in this room. For optimizations you have to take action yourself.

Whether as suggested by , or based on your own research: If you don’t want to spend money on a planner (which I fully understand given the fee!), you will have to painstakingly put it together yourself (welcome to everyday construction). When you are mostly finished with that, you are welcome to come here with detailed questions, but just scribbling out a "hero quest game board" and expecting someone to do it for you simply won’t work due to insufficient information.

I can understand both sides well.

We also visited every trade to discuss the positioning since we don’t have an architect to do that for us. The bottom line: if I hadn’t paid attention and eventually noticed that 60 cm of space for a distribution box wouldn’t fit, we would have had a big problem. Furthermore, if I hadn’t happened to be on the construction site all day on the day the plumber was working, the exhaust pipe would run through the ceiling (a special permit from the chimney sweep was already in place) – really great for a wooden beam ceiling with a vapor barrier when you ever need to access it – and the hot water boiler would be positioned in such a way that every time you walk through the utility room, you first run into it. That’s what the boss decided, and as a layperson you tend to follow the recommendations of a professional. Luckily, the plumbing worker thought along, discussed everything with me on site, and contradicted his boss. The boss then came, saw his mistakes, and admitted them. If I hadn’t been there, he probably would have stubbornly worked according to instructions and we would have been annoyed for ages.

What I want to say with this? You are right to get opinions here because professionals don’t always plan everything to be practical in everyday life, and another opinion can be worth its weight in gold. However, my previous posters are also right in saying that you need to acquire expertise yourself in order to understand the plans.

and not answers that are supposed to show me that, in your opinion, I have chosen the wrong way to build.

I would not necessarily interpret the saying of the people, that you build your first house for an enemy, as an "instruction".

Based on your information, not even a professional could plan. Let alone a "service provider" or even us here.

What is the ceiling height of the room? How large will the riser shaft be? Where should the fresh-/exhaust air valves of the controlled residential ventilation go; where the outdoor-/exhaust air, what pipe dimensions, size of distributor? How many (power) cables/circuits run where, where is the main connection box located? Where is the wastewater? Where do the water pipes run? Where does the hot water come from? Where are the kitchen and main bathroom located? Is there underfloor heating? If "yes," where should the heating circuit distributors go? Have you considered space for the installations (e.g., expansion vessels, filling station)? What is "WKW"?

You get nothing out of me telling you now that you can definitely accommodate your controlled residential ventilation central unit including distributor on a 260cm wall if in the end 20 pipes of 75mm don’t fit through the riser shaft planned at 30x30. They will manage to somehow fit your building services in this room. For optimizations, you have to take action yourself.

Whether, as suggested by , or based on your own research: if you don’t want to spend money on a planner (which I fully understand given the fees!), you won’t avoid painstakingly putting it together yourself (welcome to everyday construction). When you’re mostly done with that, feel free to come back here with detailed questions, but just slapping together a "Hero Quest game board" and expecting someone to do it for you will fail due to insufficient information.

I have been away for a while now, and in the meantime we have also started building. Mostly by ourselves. The windows are coming this week and, well, things are progressing.
As with this construction method, not everything that glitters is gold. The earthworks are the most annoying part; decent earthmovers who actually show up and keep their word on prices are apparently rare here. So we’re dragging out the earthworks a bit. Especially since we still have to agree with the neighbors on the height of the wall.

If anyone has questions about the construction method, it’s easier over WhatsApp, but I’ll try to check in here more often in the future.

Regards
Red.Ed