Construction company wanted in the Stuttgart metropolitan area!

When I count the areas, I naturally count identically. When I add everything together, it's 175 to 166 in the pure living area. I don't count terraces. Then there are the basements. In total completely, it's 237 to 217 sqm.

I have attached it once.

And yes, the offer states a fixed price. I did not know that the trades then still have to be tendered at Speidel.

Personally, the offer seems significantly too cheap to me for your planned area in the Stuttgart region. After all, we are talking about move-in ready. Maybe you're lucky and it's simply a bargain, but such a large difference is hardly explainable. Back then, I was within +/-15k with all three offers (adjusted for equipment or normalized).

Yes, that is strange, isn't it? Have you ever made a formal approach to Speidel?

I attached it.

And yes, the offer states a fixed price.

I don't see anything here about landfill costs or a specification of the painting work or floor coverings. Are the pipes in the basement concealed or not? How are the level-access showers constructed? Electrical and sanitary installations can quickly make a difference of more than 20k. Is there anything further mentioned in the construction service description?

I still think apples are being compared to pears here. One is a construction from a single source with overarching warranty, 2-4 signatures, and of course high quality. The other is essentially a construction with individual contracts, but there is no architect in between, rather a GmbH. This means each trade is responsible for their own warranty; the role of the GmbH would be interesting.

I only know Speidel by name and personally wouldn’t inquire with them. According to the website, they appear to be the usual "project developer" with few employees who outsources everything. To me, it always smells like a low-cost provider wins, trades passing the buck, scheduling problems, etc. For most people, a single-family home is the biggest investment of their lives, so the gut feeling should be 100% right. Viewed another way, you have 150k left for experts and lawyers – also a solid buffer. And if everything goes smoothly, you’ve easily saved a 911.

I don't see anything here about landfill costs or a specification of the painting work or floor coverings. Are the pipes in the basement embedded in the plaster or not? How are the walk-in showers executed? Electrical and plumbing work can quickly cause a difference of more than 20k. Is there anything more specific about this in the construction service description?

I still think apples and oranges are being compared here. One is a turn-key construction with comprehensive warranty, 2-4 signatures and, of course, premium quality. The other is basically construction by individual contracts, but without an architect in between, rather a GmbH. This means each trade is responsible for their own warranty; the role of the GmbH would be interesting.

And the offer mentions a semi-detached house (Doppelhaushälfte). I thought it was supposed to be a detached single-family house.

Slava: Of course there is a construction description, what else?

As already mentioned, the landfill costs and excavation are included, this is even explicitly stated in the construction description. If necessary, the excavation material is also temporarily stored for later backfilling. All of this costs nothing, I even called about it. There are no level-access showers, those cost extra just like the other better standards. That’s why I wrote that I roughly calculate 20 K just for plumbing and electrical work mentally, but I was more or less mocked for that here. Even if I calculate 50 K, I am still miles away.

Otherwise, both providers have the standard wallpaper, which is not acceptable at all. And in the basement, the sockets are surface-mounted, also with both. I have already compared the relevant things, I am not completely blind.

The main argument from Fermo is precisely the monolithic construction method and everything from a single source. And yes, the warranty issue is definitely a topic.

It remains difficult

I don’t see anything about landfill costs or a specification of the painter’s work or floor coverings here. Are the cables in the basement flush-mounted or not? How are the level-access showers executed? Electrical and plumbing work can quickly make a difference of more than 20k.
Is there anything more detailed in the construction service description?

I still believe apples and oranges are being compared here. One is a turnkey build with comprehensive warranty, 2-4 signatures, and of course higher quality.
The other is basically a build with individual contracts, only there is no architect in between but a GmbH. That means each trade is responsible for their own warranty; the role of the GmbH would be interesting.