Screed or tiles with a concrete look

yes, that's what I feared.... the screed is practically dead already, even though it's hard for me to admit, but it definitely looks like the larger tiles (I'll just have to live with the narrow grout lines. It shouldn't be cheap or a makeshift solution, I know myself/us too well for that, whoever buys cheap buys twice. That will certainly annoy us after a very short time.

Thanks a thousand for the tips and ideas (I'll keep you updated on what it will be)

now the demolition comes first

We are hacking up the entire floor and want to install underfloor heating....

Has it been clarified to what extent a renovation already becomes a conversion and requires approval?

I want the floor to look a bit like concrete with shadows and stains etc.

If it’s tiles or something similar, we want the joints to be hardly visible and no repeating pattern

I’ll throw in the keyword terrazzo.

For the renewal of a screed, a homeowner does not need any permit! What is the point of this objection that completely misses the topic?! And we do not get a terrazzo for less than about 120,-- to 150,--€/m2. Two-layer screeds with extensive grinding and filling work simply have their price!

For the renewal of a screed, a homeowner does not need a permit!

Of course not. However, other posts by the OP suggest that the measures overall go far beyond a renovation.

And we also won’t get terrazzo for less than about 120 to 150 €/m2.

I mentioned this term because terrazzo is no longer familiar to some younger people and is therefore excluded from their considerations. I do not mean it as a price alternative.

Of course not. However, other posts by the OP allow the conclusion that the measures as a whole go clearly beyond a renovation.

What do you mean by clearly beyond a renovation? Is that already a refurbishment?
Planned are / electricity to FI / floor including existing screed out, underfloor heating and new screed back in plus parquet and something different as a contrast.

Clarify, renew the insulation in the living room on 2 walls

and the bathrooms, of course

What we still have in mind (have to) are possibly the water pipes

We will deal with the windows and the heating in the long term

Oh, don’t get me wrong.... it’s not about the money (cool statement if my husband reads this) but I was interested in your experience with it, because except for one architect, everyone practically declined (and I’m sticking to that now) exposed concrete is out

Terrazzo is the one with the stones in it that looks speckled?! right? no, that’s out because of the look.....