So, a walk-in shower is standard nowadays, right? Especially since it’s not significantly more expensive, if you’re building new anyway, it doesn’t matter whether I install a shower channel or a shower tray. Without the shower, it wouldn’t be a guest bathroom but a guest WC, manual shutters an extra???, what are upscale tiling works?, "sufficient" electrical installation is standard (sufficient = grade 4), KNX would be, for example, upscale or an extra...
No offense intended, but this is the case I meant, everything that is more than absolutely cheapest is labeled as upscale.
In appraisals there are 5 levels:
1 and 2 are no longer up to date but still functional, level 3 can be described as what is currently the common or affordable standard among the mentioned companies, level 4 is then upscale, this includes triple glazing, electric shutters, special burglary protection, multiple LAN and TV connections, etc. (this is probably, at least in large parts, the most common level that is built), level 5 are, for example, KNX, video and alarm systems, air conditioning and all sorts of luxury like slate roofing up to the "golden faucets."
Therefore, as I said, I would classify most houses largely as upscale, but few will have installed all the special features.