Enlarge living room / extend concrete ceiling?

Has the purpose of the whole thing ever been explained more precisely somewhere instead of just "everything is too small for me" ??

I am wondering what purpose you are looking for in it. It’s quite a subjective thing. For others that might be a huge living room, for me it’s not.

I mean specifically? That is already 4.20 by 5.20m! How are the furniture arranged? Which furniture should go into the new version at all? That will be a ballroom without a concrete use of the additional space!
Is it purely a matter of feeling? Then, of course, you don’t need to present any argument. But if there is a concrete use (which I probably missed), it should be presented in more detail to give advice.

Under the window there is a 4m wide sofa, which extends about 2m down along the wall on the left. The remaining 20cm of width is filled with a floor-to-ceiling shelf on the right wall. The bottom left corner up to the door is furnished with a wall unit that goes around the corner and stretches about from 40cm from the end of the sofa up to 10cm before the door. To the left of the door, the TV hangs on the wall.
If you can’t imagine it, let me know, then I’ll gladly draw it into the plan.
Since unfortunately the living room is quite awkwardly shaped, it is difficult to arrange anything differently. As part of the extension, the top wall is to be replaced by a floor-to-ceiling/ceiling-height glass front, as large as possible.

Otherwise, for me this will be the most expensive private ballroom of the year.

Maybe, perhaps I just like dancing. Surely I could also put the money into a Porsche or something, but I don’t really need one.

If you don’t only want to extend 90 cm to the left, then first and foremost I would find someone who definitively tells you how far you are allowed to extend to the left at all. Because what must be statically calculated depends on this extension.

As I already said, I was at the building authority of the city. So I assume that the 90 cm is correct. To the top towards the garden, I am not limited to the 90 cm.

I find this slice-by-slice tactic with the info very annoying. That first.

Sorry that I didn’t know beforehand what questions would come up and answered them one by one.

I would be interested in the complete plans of the basement and ground floor so one can get an overall picture of the current situation.

I don’t quite understand why you are interested in that. For me, it was about the extension of the living room.

In your place, I would look for a good structural engineer who is authorized to submit building applications if it’s just about this extension. I would save myself the architect’s fee for it.

I will probably tackle that in the next few weeks.

The basement will not necessarily have to be enlarged. Unless you need the windows. And then a flat-roof extension on the ground floor.

One window would be nice. Two like now are not necessary. That means one could also extend the basement only in one direction.
Actually, I don’t want a flat-roof extension, but a normal pitched roof on the extension. See my drawing here:
https://www.hausbau-forum.de/threads/Wohnzimmer-vergroesseren-Betondecke-verlaengern.32837/post-356067

Selling the house and buying a new one with a bigger living room would probably also be cheaper.
That won’t work, really won’t...

Yeah, maybe if it doesn’t work out, it will probably come to that.

The furniture plan is certainly not unimportant, because if steel beams come in, then new supports (columns) must be placed directly against the wall. Very unfavorable for a sofa.

Therefore, the entire plans are important so that you can get an idea of the roof and the overall statics.

Either you make some compromises with columns, only on one side, basement window closed, etc., or the project will be six-figure.

Even if you have the money left over: better build a really awesome conservatory and buy the Porsche instead.

Even if you have the money left over: better build a really awesome conservatory and buy the Porsche to go with it.

Yes, that's what I'm saying. One third of the length of the wall on the left side facing the neighbor, just under 2 meters deep should be inside. Possibly open over two floors, that feels like it adds a sense of spaciousness. And now please post the plans for all floors plus one of the surroundings, otherwise it won't work.

Selling the house and buying a new one with a bigger living room is probably definitely cheaper.

s.i.g.n.i.f.i.c.a.n.t. !!!

I don’t quite understand why you care. For me, it was about expanding the living room.

The causal connection is called statics.

Maybe, maybe I just like to dance. Sure, I could also put the money into a Porsche or something, but I don’t really need one.

Sure – then rather two Porsches for the structural engineer. You really can’t earn money so effortlessly that throwing it out the window with a particle accelerator would be worth it.

I still haven't read how much budget you have for this! And by the way, I also think that building new will be cheaper.

This is not a classic extension with its own foundation slab, where you can continue living in the rest of the house. The house will be uninhabitable for months. You only see a bigger living room, I see,

- torn down and newly erected exterior walls
- broken up screed on almost the entire ground floor and probably the upper floor as well (and redone)
- new electrical system
- new flooring throughout the living area
- due to the screed, also a new underfloor heating system
- then the heating system might be too small for the additional area
- a new energy-saving regulation calculation. Possibly with mandatory energy consultant involvement in the future
- all newly plastered, then also with color differences from the rest of the house
- excavation
- disposal
- architect costs
- 10 months of temporary accommodation
- structural engineer with elaborate support measures
- and much, much more

And I haven't even gotten to the topic of foundation slab and excavation. I lack the imagination of how one wants to ensure that an added foundation slab behaves exactly the same regarding settlement as the existing one.

From my point of view, you're easily over €100,000 if you even have 150 sqm and you don't have the guarantee/warranty that no cracks will form between the existing structure and the extension.

The idea is totally crazy.

So that you don't feel attacked here, have you ever thought about a conservatory on the side? 20 sqm with a large wall opening (here you will also need a structural engineer). But the heating issue is difficult here as well.

Have you ever thought about a conservatory on the side? 20 sqm with a large wall opening (you will need a structural engineer here as well).

He won't even come out with the floor plans.... maybe you could also incorporate the current terrace on the right side into the house, for example. But without plans, nothing will come of it.