Because there is still a KS there, the upper floor looks very unnatural. The roof windows are quite high from the outside. There is not much space left for photovoltaics. Oh, and what comes to mind: the HT is too small for the craftsmen and TK. You need standing and installation height for almost everything. The planner just plans it that way; later, during the expansion, it is changed on the advice of the sanitation professionals. To the detriment of the fitness room. What I see: the living/dining area will be dark because no direct light brightens the room through the covered terrace. Basically, I like the idea, but only if a free window compensation is created on an extension or around the corner. In your case, this is not the case. I believe this is nothing here in Germany or Western Europe, rather in the southern countries, or one plans these umbrella roofs among other places in South Africa. The stair bay makes the single-family house look somewhat massive. Here, the five-family houses look the same. So: I would leave the KS and see if the 190 sqm can be optimized a bit.