Draw proper furniture in the Allraum, as you want to buy or have it. The mini dining table again shows more space than there is. Where will the parking spaces go? Doesn’t the master bathroom have a toilet? Somehow the design is a federal miscellany. Old-fashioned master bathroom plus the curve that doesn’t reflect as a highlight inside. Construction costs, so you take off your shoes and live in a boring apartment. If you like the curve and want it, then design your house so that it can be felt inside. Design a house for 1-2 children or 3, whatever you imagine right now. If there are no children, then you have a generous house for 2. A master bedroom with bathroom with freestanding tub. A living room that has the curve inside. Recently, someone posted an amazing bathroom here. With large glass surface in front of the bathtub and gallery. There are so many possibilities. Look around at Schöner Wohnen or at the next prefab house park at Huf and Co. You are sinking far more than 500K, more like 700 to 800K; this should be reflected inside again.