Rough estimate of renovation effort / costs

If you only pay 10 euros/sqm more for removing the tiles, it probably makes sense to have them removed right away. The second question was: The carpet can be removed easily. However, some residue remains on the floor (foam/adhesive); can it be left there or should that be removed as well, meaning could the parquet be laid on it? In this case, I could at least remove the carpet myself. I am less confident about removing the tiles. The minimum would be about ~35 sqm of tiles to be replaced with parquet, 28 sqm where the tiles should be replaced with new ones, and another 90 sqm where carpet should be replaced with parquet. According to the expert, 25,000 euros have been budgeted for this. Is that realistic?

What is that supposed to mean, tiles that are "through"? Are they coming loose or no longer up to date ("ugly")?

He meant that they are partially broken. He had talked about cushion formation. You can certainly leave them in, we had considered that in the basement as well. However, cracks can also be seen in the middle of the room. That would bother us less than in the living room. They are basically only white and therefore timeless. But I don't like white tiles, they look too sterile to me.

The thread has actually become somewhat confusing by now. It specifically concerns a house I am considering buying. The terraced middle house has 185 sqm of living space and

... what you wrote might deserve the name "summary," but you might want to work on clarity again. Don't take my long text deserts as an example but try to structure it more clearly to make it easier for to digest. Try forming 1., 2., 3., ... always as a pair of a fact and a question in which the respective expectation of the expert becomes clear.

@ : I obviously cannot judge the quality of the colleague who was already on site. However, the fact that tiles are "worn through" is, at least for me, a sign that the field "flooring" (with its extensive facets) does not seem to be so familiar to him. Especially since these are not tiles, but usually thicker (over 10mm) granite natural stone slabs. Decisive for the further procedure are the following aspects: a) Underfloor heating YES or NO b) Are the natural stone slabs still firmly attached to the substrate? c) Would there be difficulties with height buildup up to 20mm at rising components? ------------ I had already mentioned the issue of underfloor heating. If yes, the natural stone slabs should be removed in order not to shift the thermal resistance into a critical range. (Without underfloor heating and natural stone consistently on the entire floor level, for example at a staircase, problems would arise in that the tread height would be lower than the risers above. Meaning: possibly a tripping hazard.) The costs for a complete removal are difficult to determine without knowledge of the object, since due to the (compared to commercial buildings more complex) floor plan, the use of correspondingly large machinery (e.g. ride-on stripper) will not be so easily possible. If removal must therefore be done manually (of course with suitable technology), according to my estimate, about €30/m² will be incurred including transport and disposal. Then intensive grinding of the substrate (screed surface): approx. €12/m². Priming with leveling filler approx. €11/m². Gluing of multi-layer parquet approx. €85/m². Calculate about €130 to €140 per square meter, excluding cleaning and painting work. ---------------------------------- Regards and good luck: KlaRa