Boundary to the neighbor with garage built over by approximately 1-2 cm

From 5cm on, IMHO the fun stops, so it’s okay with row house development

On a "normal" single-family house plot, I wouldn’t have had anything to think about/object to.

Doesn’t matter. For all I care, also the emotional one, that you had sleepless nights.

Ha, as a layman you don’t know what’s coming and certainty takes until the survey is done. Construction start in danger? Building permit still valid?
Sleepless nights would be overstated, but it costs time and nerves. Especially those uncomprehending general contractors and shell builders who dismiss everything as no big deal. Anyway, we stick to the fact that it’s incalculable.

They “rasped off” 2cm of the insulation with a chainsaw, no idea if that’s done professionally like that

I had thought about something like that too. Funny in hindsight.

May I ask what the additional surveying cost you? (Here about 300€ had been mentioned?!)

127.50€ net. The trip was <20km.

That seems to me like a contradiction (?)

I read it differently (in subjunctive). The sentences after it explain why it didn’t come to that.
Though German was never my favorite subject.

I almost think I'll also choose option 1 based on the reports here.

Good idea. Although it's a pity for the colleagues on site.

So it might still take a while before construction starts

If the planner does not have the actually existing gap on site measured before planning begins, it's his own fault.

but then there's also the damage due to the reduced clear width

That's what I meant by the worn mirror. How do you want to quantify the damage caused by the reduced width?

Especially those uncomprehending general contractors and shell builders who brush everything off as no big deal.

I understand what you mean, but in the end it was only half as bad.

Here for your information is the surveying protocol (GU's of the neighbor): - The insulation of the floor slab was then removed. - There remained the deviation of the building corners from our measurement of max. 1.5 cm. Which exactly corresponds to the measurement tolerance mentioned by escorda.

As an outsider, one wonders whether people have gone crazy.

How do you want to quantify the damage caused by the reduced width?

With the costs for replacement, for example. If I can only put the car in the garage and not hang the winter tires on the wall as well, I incur costs for the tire hotel. If bicycles can no longer be pushed past the car, I need a separate bicycle box (possibly along with costs for an exemption if the development plan does not actually provide for this). Personally, I would ram my builder unceremoniously into the ground if, because of him, I had to open my car door like a raw egg every time (and lose another ten pounds to squeeze through). In my eyes, a construction-width garage is the Waterloo of the little man anyway. In my garage, I want to be able to open my car door without having to think of a running gag from Kottan ermittelt.

As an outsider, one wonders if people have gone crazy.

?

If I can only put the car in the garage and not hang the winter tires on the wall, I incur costs for the tire hotel.

I don't believe a judge would go along with that. Depending on political bias, they might even see added value, since the Macan no longer 'fits,' but only an e.Go.