Floor plan design single-family house (city villa 140 sqm) on a slope with double garage

...if you build with a general contractor (GU), then you will have to buy from the sanitary trade. There is no comparing or online prices. It usually goes like this.... If you do not like the standard sanitary facilities listed in the construction service description, you will receive a voucher/credit for the sanitary company that the GU works with. Because of this, you do not get the same discounts/prices on the sanitary objects as if you build with individual trades. My prices with individual trade assignments are about 20% worse than the cheapest internet price. Your prices will therefore be about 20% worse again.

These are not horror stories or only the case with us in Bavaria. That is the reality. There is no comparing. They will also not install any online stuff for you. You can turn yourself upside down.

Ok, I understand!

The construction engineer had the following plan. He wanted to take over the design planning etc. and then also the construction management, tender and award the individual construction phases to trades, and then check and accept them on our behalf. He said we could also choose tiles etc. from factory outlets and the corresponding trades would install them. That way, you are free in your choice and if you want something higher quality, you are not bound to cooperations (trade/dealer).

As I said, please enlighten me, but isn’t that a good compromise and what do you call such a structure?

I know someone here in the forum who is the


This is individual trade awarding. If the engineer knows trades that install objects from a factory sale and still provide a warranty, then that's good.

Have you already agreed on a fee with him?
If not and he charges according to HOAI, then you should plan another €40k fee for your engineer for service phases 1-8.

Ok, got it!

The construction engineer planned the following. He wanted to take over the draft planning etc. and subsequently the construction management, tender and award the individual construction phases to trades, as well as check and accept them on our behalf afterwards. He said we could also choose tiles etc. from the factory outlet and the respective trades would install them. This way, one is free in the selection and if you want something more high-quality, you are not bound to cooperations (trade/dealer).