Construction company wanted in the Stuttgart metropolitan area!

Sounds exciting! What is the current status?

Want to write something here as well. Many thanks for your reports. I come from the Böblingen area and your tips regarding provider search were very interesting. I only got to Köhler after your post.

Regarding the previous posts, I would like to note: With so many inquiries that providers receive, they have so many standard floor plans and cost breakdowns, it should take at most one hour to put together an offer using software. I wonder anyway why you cannot simply enter your desired house and plot data (rooms, floors, orientation) after an online login with the providers and then get something output, e.g., like when buying a car, where you can set detailed filters in portals. All doable with good software. Very annoying is also the way the (prefabricated house) providers deal with us builders. A phone call rarely suffices; face-to-face (F2F) is a must. Videoconferences are sometimes grumbled at and only reluctantly agreed to. The salespeople prefer to drive 100 km back and forth to one or even want to show you the company first!! (Like Fertighaus Weiss and Schwörerhaus. They waste a lot of time and money - it could be much easier for both sides! The advantage of video consultation is also screen sharing and live price determination. That is much better than F2F at someone’s home without advisors having access to their system.

Another tip for provider search for newbies: Poring over catalogs and having them sent does not help. Better first go to an independent architect, talk about the building possibilities on the plot (requirements regarding height, roof shape, orientation, etc.) as well as floor plans (orientation of rooms according to the cardinal directions) and have some drawn (or draw them yourself). Afterwards, with the data as concrete as possible (e.g., KfW standard, heating - first to an energy advisor? -, price expectations, etc.), go to the providers and e.g. hold several talks in Fellbach in one day. There, the advisors have access to their software. The talks are very important because you learn a lot with each talk and are prompted to think. This brings the most besides the books from consumer centers and Stiftung Warentest.

We have currently canvassed (goal: detached single-family house, approx. 140 m² fully basement):
Price range from providers for the house without additional costs (earthworks, connections, outdoor facilities, fees for street closure and building permit, etc. = about 100K!!) but including architect and planning: €410,000 - €480,000.
Prefabricated house providers (offers unfortunately only after face-to-face meeting):

Provider	Comment
Streif Haus	Very committed advisor, almost too committed, fastest construction time of the providers. Show home in Fellbach appears very cheap, material quality low.
Weberhaus	Good advisor, but air-to-air heat pump as basic concept? Please no... Responded late. Show home in Fellbach pretty and relatively high quality
Fingerhaus	Good advisor (Great: video was uncomplicated possible), good breakdown of the items +/- options with own price, favorite! Also overview of ancillary construction costs - excellent!
Kampa	Good advisors (2 came together), good offer discussion. Offer + construction performance description only printed out. Show home in Fellbach appears very cheap, but is from 2008, the guy there in the house knows a lot.
Fertighaus Weiss	Good contact, calls, committed. But no offer, you have to visit the company somewhere out in the sticks first -> no way!
Schwörerhaus	Contact responds poorly, no offer, you have to visit the company somewhere out in the sticks first -> no way! Show homes in Fellbach but of good quality
Haas Haus	Good assigned advisor, calls, offers conversation via Teams in email. Preliminary draft only floor plan. Decent house in Fellbach, advisor chats on site, exhausting.
Town & Country House	Quote: Floor plan wish (they were normal, usual single-family house floor plans!) too complicated, go elsewhere -> unbelievable!
Hanse Haus	"We will get in touch with you" -> Nothing happens!

Solid house providers:

Provider	Comment
Hauser Massivhaus	Quick response, appealing offer as PDF (can confirm the positive impression from above!) without F2F talk, good offer with +/- options including price
Einstein Haus	Respond quickly, offer as PDF without F2F talk but unfortunately super brief, construction performance description good and illustrated, no prices for options
HEFA Holz- & Massivhaus GmbH (mymassivhaus.de partner)	Good contact, construction performance description clear, with good photos, needs analysis including concrete ancillary construction costs - great! Offer only after F2F talk
Heinz von Heiden	Excellent advisor, offer only after F2F talk, immediately delivered very good floor plans, best ancillary cost list ever seen, +/- options in offer, fair price - big favorite!
Haiss-Massivhaus	No longer accepting customers
b + m Schlüsselfertiges Bauen GmbH	No offer, quote (snappy): At that price we don’t do it, you can forget it.
Attraktives Wohnen (partner of Favorit Massivhaus)	Inquiry ongoing
Lechner Massivhaus, Kern-Haus	No response for over 2 weeks
AWS Haus	Desired house not feasible (only thinkable from €500,000)
Wochner-Haus	Desired house not feasible (only thinkable from €500,000)
Köhler	Inquiry ongoing

I also want to write something here. Many thanks @erazorlll for your reports.

Yes, very good that you not only thank verbally but also take a good example and provide such a great overview for the next readers!

Very annoying, also the way (prefabricated house) providers deal with us builders. A phone call is rarely enough, face-to-face (F2F) is a must. Videoconferences are partly grumbled at and only reluctantly agreed to. The salespeople would rather drive 100 km back and forth to one person or even want to show someone the company first!!

Well, I can understand the companies; what you are doing are indirectly "last price" calls, nothing more. I think the providers get more than enough of such inquiries, and then I can understand that they primarily take care of those who show commitment, invest time, and are serious overall.
After all, at least 19 companies drop out with you.

On what basis did you decide on the aforementioned providers? That’s quite a mixed bunch, different construction methods in various price ranges.

Regarding the previous posts, I would like to add: With so many inquiries that providers receive, they have so many standard floor plans and cost breakdowns that it should take a maximum of one hour to put together an offer using software.

One more tip for newcomers searching for providers: Browsing through catalogs and having them sent is pointless. Better to first go to an independent architect, discuss the construction possibilities on the plot (requirements regarding height, roof shape, orientation, etc.) and floor plans (room orientation according to the cardinal points), and have some drawn up (or draw them yourself). Then go to the providers with the most concrete information possible (e.g., KfW standard, heating - first to an energy consultant? -, price expectations, etc.) and, for example, hold several talks in Fellbach on one day. There the advisors have access to their software. The talks are very important because you learn a lot from each conversation and are prompted to think. That brings the most besides the consumer advice center brochures and Stiftung Warentest.

At first you want prices for standard floor plans, but then concrete offers for an individual house?
What good is a 20-minute price if it is poorly prepared and incomplete? There are so many factors that influence the price in housebuilding that you do not notice at first glance. For one provider, they are included in the standard, for another not. One hour is not enough for that.

Thank you very much for the list, I am still exploring potential construction partners in the Stuttgart region. If anyone has any further tips and experiences, I would be very happy – I am also open to building with an architect.

I am also still exploring for building partners in the Stuttgart region. If anyone has further tips and experiences, I would be very happy

You should find good information in the section "Erfahrungen mit Baufirmen" here.

I am also open to building with an architect.

That is good – especially if you mean setting up proper planning and tendering before awarding the contract – possibly also to a general contractor. It is best to first introduce yourself and your building project in a separate thread, then people can advise you more precisely on what to pay special attention to – as this varies somewhat with every project.