Construction company wanted in the Stuttgart metropolitan area!

The architecture of the houses is different, but whether you position walls this way or that shouldn't make such a big difference.

...definitely more than just arranging sockets...bay windows, overhangs, projections, larger ceiling panels, more reinforcing steel, etc... that can be a very big factor.

Without more details about the offers (see ) no one can judge that. Maybe you could directly post a picture of the designs so one can see the different architecture?

Before I get too caught up in details. You are a business economist and should know all of this. Your house construction can be optimized according to three parameters in the classic triangle: cost - quality - time. Choose what is important...

Thoughts that you should immediately discard are:
1. A provider has something to give away.
2. A provider desperately wants to drive away customers.

Obstlerbaum, that was very wisely written and is certainly true. Since you have already decided on Fermo, you have probably also already gained some experience.

They are completely different approaches:

Speidel is an office, they present you with a standard cookie-cutter house design taken straight out of a drawer and then arrange 13 other trades for you, making a separate contract with each one. Included, of course, are the building application, detailed planning, structural engineering, and site supervision. You can certainly choose where the front door goes, but nobody there will make you an individual design, at least not in terms of design. What is remarkable, however, is that landfill and excavation are already included in the standard construction description here. At Fermo, disposal costs about 20,000 euros right off the bat.

Fermo, on the other hand, offers everything from a single source, has its own employees, and a huge company building. They naturally have entirely different overheads, personnel costs from the start, and require a completely different margin and corresponding contribution margins. And there is also an architect who draws your individual house—I assume he demands a fee that Fermo has to pay him.

And yes, there are additional costs with both providers, and I have compared those too. Let that vary at the end by 15-20 thousand.

At the end of the day, however, a difference of more than 150,000 euros remains, and then we come back to the starting point. Is it worth it...

Deciding based on the company building alone, I think, is not very meaningful. Speidel has quite a large building for 15 employees, in my opinion. Now take a look at all the company buildings of all the subcontractors together and see if Fermo doesn’t have fewer square meters per person. By the way, at Fermo the architect, structural engineer, etc. are employees; there are no separate fees. From my perspective, the payment schedule is also very fair; besides, almost all trades come from one source and there are zero gaps in the execution. And does Speidel also give you a fixed price guarantee? After all, none of your trades have been tendered yet when you sign the contract...

Quick question about your offers: you always calculate only the ground floor and attic area, right? Storage basements, etc. are not included.

Obstlerbaum, that was very wisely written and is certainly true. Since you have already decided on Fermo, you have probably already gathered some experience.

These are completely different approaches:

Speidel is an office; they present you with a standard block fixed house design from the drawer and then mediate 13 other trades to you, and you make a contract with each separately. Included, of course, are the building application, detailed planning, structural engineering, and site supervision. You can certainly choose where the front door goes, but nobody makes you an individual design there, at least not regarding design. Remarkable, however, is that landfill and excavation are already included in the standard building description here. With Fermo, disposal costs about 20 thousand euros right away.

Fermo, on the other hand, offers everything from one source, has its own employees and a huge company building. They already have completely different overhead costs, personnel costs, and need a completely different margin and corresponding contribution margins from the start. And there is also an architect who draws the individual house for you; I assume he also wants a fee that Fermo has to pay him.

And yes, there are incidental costs with both providers, and I have also compared those. Let that vary by 15-20 thousand in the end.

At the end of the day, however, a difference of more than 150,000 euros remains, and then we come back to the starting point. Is it worth it......

If you mean 150k€ for “service,” certainly not. You can still take it further and leave out the architect from performance phase 4 at the right companies. :-p

You can do everything... if you have time or money!

Hello Obstlerbaum:

When I count the areas, I of course count identically. When I add everything up, it is 175 to 166 in pure living space. I do not count terraces. Then the basements are added. In total, it is 237 to 217 sqm.

I have attached it.

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