Best wall construction in the prefab house sector

That is very commendable and wise. Best plan together, or with the same planner, and also have them manage the construction.

We would have liked to do that and my neighbor is building with Rötzer and we had also considered it, but in the end it wasn’t for us. We are a bit more expensive for the one who builds second: but nothing tragic.

Especially this size category is very rare in this construction form, and the granny flat is already less common in semi-detached houses than in detached single-family homes. And conversely, one rarely builds like that on a semi-detached house plot.

Unfortunately, we ended up with a plot that is too large for a single-family house and we are including my parents as well :) hence the strange version.

Most of the time here we read from people who simply emailed their "architect I can do 3D myself" floor plan set, or even just asked for prices with the wish of "xy square meters captain’s gable house." So you were with an independent architect, up to the design planning, and are now (strange order!) looking for the wall construction. But at least you proceeded a bit more professionally than the average question asker. The architect has also already created a building performance description, if I understand correctly – why don’t you let him choose the general contractor as well?

My father comes from civil engineering and he has some skepticism about the selection of companies by the architect, because they mostly build with companies they already know, which is not bad in itself, but maybe not entirely a "free" decision. Therefore we are looking ourselves with the finished plan/specifications :)

There is no best!

There is no best!

The wording was poorly chosen, I was rather hoping for experience reports, which unfortunately could not be found like that in the forum and on the internet.

The wording was unfortunately chosen, I was rather hoping for experience reports, which I could not find in the forum and on the internet.

Yep, because this comparison doesn’t exist. No one builds rows of houses with a variety of construction companies. We all want to build ecologically, but this is often only possible with compromises due to the costs. How much do you want to spend?

We would have liked to do that and my neighbor is building with Rötzer and had also considered it, but in the end it was not for us. We were then a bit more expensive for the one who builds second: but nothing serious.

I was talking about planning and construction management, not about choosing the same construction company. If possible, I would start in a coordinated manner (and consider benevolently using the same basement builder as "the other twin"). But include the basement in the contract with the house builder (unless you do not follow my advice to also have the architect manage the construction).

My father comes from civil engineering and he has some skepticism about the architect’s choice of companies, since they usually work with companies they already know, which is not necessarily bad, but perhaps thus they don’t decide completely “freely.” Therefore, we look for companies ourselves with the finished plan/BLN.

Planning, tendering (also gladly involving general contractors, and the timber frame panel builders are nothing different) and construction management are best all in the same hand. Has the architect already worked with all five mentioned companies (and why then do you lack assessments about them)?

Yep, because there is no such comparison. Nobody builds row houses with a variety of construction companies.
We all want to build ecologically, but often only with compromises due to costs. What do you want to spend?

We don’t really have a budget since we are taking a shell house and doing the rest cheaply, but if you have to quantify it, max. 400,000 planned for the shell house and then about 250,000 for the interior finishing, with a lot done as DIY.