Let's break it down: Tiles: Tiles are additionally needed for the floor-to-ceiling showers and the freestanding tub. Stainless steel strips as well as some pedestals and additional pre-walls... The walk-in showers were offered by our general contractor as a complete extra (because of screed, walls, tiles, and sealing) for 700. (4 years ago) just as a guideline. The drain channel was not included yet (about 500€) Rainshower is also not included in the package, usually only simpler shower fittings. In terms of design, there are also nice and high-quality options in the cheaper price range. The effect, whether cheap or expensive, is in my opinion only recognizable with the combination of tiles. Better choose higher-quality tiles, then the fittings can be somewhat cheaper. This also applies to the fixtures. Washbasins with drawers are expensive. If I were you, I would check out Ikea or display pieces. Mirrors also add up, but those are two extras that are not included in the sanitary budget anyway. Yes, and whether your flush plate on the toilet has to be made of plastic, stainless steel, or come from a designer is not a question at 4 or 6000, that category is to be placed between 14,000-60,000. Our simple duo bathtub in 180 cm length has cost over 2000, by the way.