Floor plan single-family house 1 full floor technology and daylight

I still have to make a decision regarding the planner for service phases 5-8; so far, a change is under consideration, although for electrical & sanitary/heating the entire planning is outsourced to the companies anyway (as already mentioned, this is the same in all options).

Passing the planning onto the contractors is a crazy idea. If it comes from the architect, a change would be absolutely out of the question for me or, as former Chancellor would have put it, "without alternative." In which post can I find the "all options"?

As I said (with the caveat regarding references to my calendar) I am happy to be available for you.

However, keep in mind: so far you have not even caused any latent reservations there. You would have to get in touch early, I currently have waiting times like at a specialist doctor (with steadily rising levels). Next week the Christmas holidays begin, and after that we are practically already in May.

@11ant How does a tender including a general contractor (GU) actually work, if the individual tenders (first shell construction, then interior trades and technology) take place staggered over several weeks, but at the same time I want a fixed price for everything from one general contractor? The contractor would actually need all the tenders at once.

Where do you get the maximum misconception that tenders are made "staggered"? – that would not work not only with a GU, but in general not at all. At most, GUs themselves could carry that out with their subs that way. If you want to outsource the planning to the contractors and also do the tendering "staggered," you will not only need a clock with a reverse gear (aka time machine), but you might as well start practicing spelling "time-and-material hours" from all six directions. Doing service phase 5 after service phase 7 is logically excluded and the contractors cannot take over service phase 5 for the very reason that they would have to take each other into account. They must mean something completely different with the "entire planning" there (probably just: marking themselves where to start drilling). This can only lead to chaos and confusion. Then you may be the fool who pays for the party (and as a thank you gets wonderful dry wall boxing). Service phase 5 costs more if done half-heartedly – and even much more if omitted. The tender (not plural, but one per construction project) is sent out simultaneously for all lots together. You want to build a stone house – so it will be the mason and concrete worker who might bid on all lots as a GU (or for example only on masonry and concrete work, drywall, screed and plaster). Before that, someone has to decide whether the roller shutter boxes belong to the walls or to the windows. Service phase 5 can therefore be done neither by the electrician nor the heating engineer, but only by the architect. Have you understood it NOW?

What is done in planning for Technik & Sanitär is a kind of room book and a functional description, but no cable details, exact circuit breakers, etc. are specified. They simply are not TGA planners. I only reflect the information given to me, some of which are partly incomprehensible (like the staggered tender). Fortunately, I also filter out those who present such approaches.

For the tread thickness of the staircase, who decides the final thickness? Is this a structural matter or purely a planning issue? So, one can do a design or approval plan with 14 cm, but in the execution planning, can this still change due to the structural analysis?