Yes , timber construction and stylish too, very nice. If you plan the current living room as a living room and later as a bedroom, that would be a great basic idea with a stylish house to go with it. If you start with that and maybe go to Regnauer with your personal wishes, they will adapt it for you. From their references, you can see that they can build beautiful houses, so for example yours too, but above all WITH you and not AGAINST you and stomachache with the architect (a no-go!).
Below, a larger bathroom planned possibly en-suite, upstairs shower bath and room removed and thus less living space or... or... This is basically how we are planning it. That definitely works with your requirements and without a basement with about 160 sqm and the money "saved" on living space better invested elsewhere in the house.
Great idea from