For comments, I’ll initially give others the floor – maybe someone else would like to express their hunches about the content of my rant (especially bets on what I will start with). In that spirit: see you in a week (whether Dieter Meier will be here then or not)!
Well then, even if it took a bit longer during the year-end business: here comes my promised rant. As expected, I begin with the fantasy dimensions that lead to botched jobs in masonry construction. Concluding from this that they would be irrelevant in a wooden construction is unfortunately far from correct. Their relevance is effectively the same, although the criticality is somewhat lower. Even in the production of wooden frame panels, there are rhythms for the spacing of the studs (625 mm, less often 833, occasionally others). The stride length is different here than in masonry (there reasonably 750), but it’s about the principle, so the specific rhythm measure of the manufacturer is irrelevant here and accordingly does not carry weight. In any case, it is fixed in production and also in the basic static concept of the construction system of every house manufacturer, and the insertion of fantasy dimension steps inevitably leads to the necessity of replacements. I will list the most obvious examples of concrete dimensions:
The wall section length 1.19 on the front facade left is met by 1.21 m at the back next to the lift-and-slide door; around the corner it is then 1.32 and similarly in the upper floor with 1.41 m at the garden facade left and right, but parallel in the bathroom 1.39 m and on the children’s side 1.57 and 1.425 m. From a watchmaker’s perspective, skewed are 1.39 m on the front facade to the right at the bathroom and below 1.46 m. The window widths are moderately coordinated so as not to produce too much of a diverse menagerie. A 2 cm difference between 1.19 and 1.21 or the quartet 1.39 / 1.41 / 1.425 / 1.46 m are signs of insufficient attention by the architect to the construction system (or even disinterest), which I would not have expected here. The trickiest I assess here is the 4.5 cm reveal projection (41 vs. 36.5 cm) at the living room window door. In my eyes, these are all signs of sloppiness (yes, I know the youth calls this chillness, but that doesn’t make it better). Regarding the stairs, I miss at the start, landing and exit each the offset by the virtual depth of the last rise (tripping hazard because it requires light and/or concentration, avoidance would be simple and in my opinion the mistake "saves" only one tread depth in the required space of the stair system).
I consider requesting eight providers at once already wasteful and a range from 2.9 to 4.2 k /sqm as an initial suspicion of too coarse foundations. And both of these mind you with the restriction to just one construction method (?)
I share the skepticism regarding the double-wing living room door; regarding the balcony, I myself am a linen dryer. Bicycles (and all the more so trash bins) are not placeholders, but should absolutely not already be poorly practical in the plan. I would never, regardless of the construction method, take a slab out of the shell construction package, consequently also not with a general contractor. I agree with the suggestion of for a terrain-adapted garage elevated relative to the house. The heights would then have to be adjusted so that the passage door in the house is floor-to-ceiling, the window above the drain might possibly have to be shifted, here the wall section of 41 cm "width" might be sewn too tightly edgewise. Perhaps details like these illustrate my extreme reservations about plans without accompanying architects on site. Regarding the garage, I will mention my namesake here (not related and not in-laws). Besides, my likes to the posts of fellow discussants are part of my rant, so I regularly do not explicitly repeat most of the statements I consider accurate, and the “list” of my mentions of other comments does not claim completeness.
While reading your post, I inevitably thought of our two neighbor dogs. You go for a walk unsuspectingly, and suddenly they come barking around the corner and mark the big Max. Sure, nothing happens. Nothing ever happens. You just go on your way and let yourself be barked at. The two golden treasures have learned: If people keep walking, I have asserted myself. I am right.
The two golden treasures can also learn that no firearms license is required for water pistols of any caliber, and for dog whistles as far as I know, likewise none. Then it will be clear again who’s the boss.
And that even though we did not have the salesman of the construction company plan, as recommended millions of times, but engaged an architect, only planned up to the draft stage, had several construction companies submit offers based on the draft, then had the chosen construction company execute the work. It still turned out to be somewhat half-baked, which had to be retuned in many places.
The "half-baked" is avoidable, and I regret if I might have been misunderstood on this point: in choosing the path, selecting a general contractor (GU) in my opinion too early, commissioning the architect only after the decision with service phase 3 instead of the entire module B solely serves to avoid double execution of service phase 4. Not without reason do I always preach the motto "3 + 5 = 8."