Single-family house 150m2 floor plan + planning on the property

An HTR with 1.5m width is much too narrow and overall too small. You might somehow manage to fit the equipment in, but you also need space to assemble everything and eventually repair it. What exactly does the abbreviation HA in HTR mean?

I had already suspected that. What do you think the minimum width is? 2m? 3m? We can still move the wall inward and take space from the open plan area.
HA stands for Hausanschluss

Htr. We have 2 m width and 4.5 m length. It’s okay but a bit wider wouldn’t hurt.

Actually, hardly anything works in the idea: the utility room is too narrow, the WC is a leftover and, because it doesn't fit, gets a slanted door, the guest room is bigger than the kitchen. The living area, which should actually serve as a retreat, is a passageway here and is even located in front of the stairs, where all the family's noise takes place. Peace or privacy is hard to find here. Although you plan the utility room upstairs, which of course relieves the freezer room downstairs, you should plan some space for tools, mops, and garbage as well as beverage stuff. Why does the guest bathroom mention something about double...? It’s best if you tell the builder’s planner your needs (facing south, additional utility room upstairs, 2 children's rooms) and then he will surely draw you something nice. Then you can post it here for evaluation. Why did the entrance now also have to be moved to the front?

I once picked up the idea from to swap the kitchen and living room because I found the previous open space with the living room in front of the stairs quite uncomfortable... and at the same time stretched the house a bit to 12.6x7.84m, so the same floor area as you had (14cm more width would still fit ;)).... Entrance on the right, guest room and utility room interchangeable, terrace in the west and south. Maybe you like it?

Here again the pictures in large :oops: (hopefully)

much better! I would swap the WC and guest/utility room so that you have a bit more privacy and are not sitting on the toilet right next to the kitchen ;)