Calculation of property value in new construction

Even though I cannot say anything about your question, the item for earthworks is missing in your list below.

Hello,

But what about the following construction (additional) costs:

Soil report
Surveying
Setting out
Construction power/water
Neutral construction supervisor/expert
Value of own work

I have attached a calculation from our independent financing broker for you – of course without any contact details. Although it does not match your data, it does include an item "Additional costs according to economic feasibility calculation". This contains the aforementioned items.

How are the costs handled that only arise as additional costs during the sampling (tiles, electrical, sanitary), we have initially estimated them as a lump sum for ourselves, but does the bank do it that way as a lump sum too?

No, these belong in the equity capital.

Must the costs be proven with receipts when the loan amounts are disbursed or at the end, or is the builder’s planning of the costs sufficient?

That depends crucially on the bank you are financing with. The Ing-Diba, for example, requires a form from the builder before each disbursement, in which the claim for the disbursement of the installment payment xyz is described and quantified exactly.

12K€ connection costs

Means?

176K€ house on slab (incl. 10K€ flat rate for costs in sampling)

For how many sqm/living space?, slab or basement, plaster or clinker?

4K€ setting out/soil report/electricity/water
4K€ financing costs
3K€ construction supervisor
10K€ unexpected (/double garage)

You probably won’t make it with that; take a look here:

https://www.hausbau-forum.de/ratgeber/bauherrenhilfe.422/bauherrenhilfe-vor-vertragsabschluss.424/bausumme.662/#Baunebenkosten%20und%20Grunderwerbsteuer

Best regards

It is to be a city villa 9x9 m external dimension without any bay windows etc. on a base slab. Interior area is approximately 130 m². Two offers, fairly identical in price, are available. Gas condensing boiler with underfloor heating and [Schornstein] are included. Construction type = solid house without KfW standard. The two companies were also named to us by the construction supervisor as companies in the mid-price segment. The mentioned 12 T€ are supposed to cover all earthworks and connection costs.

The mentioned 12 T€ are supposed to cover all earthworks and connection costs.

Wishful thinking.... 3 words. You should calculate at least 20,000, but only if everything really fits. If even a single irregularity occurs, it immediately gets much more expensive. No one can estimate this item before you have done a soil analysis. Almost all house providers I have dealt with have calculated 5,000€ for earthworks here. But that's because it is not their responsibility, and 5,000€ was still realistic a few years ago. As soon as your plot is even slightly too low, or you have to dig deeper than planned, costs will immediately arise. Our earthworks come to almost 20,000, and our plot is "almost" level... it slopes by 40 cm over 30 m. Unfortunately, 60 cm of topsoil must be removed, which means 300 m³ of gravel on 300 sqm (costs for this alone are 10,000 extra). The devil is in the details with earthworks. Better to calculate somewhat more generously. 10,000 for a double garage is also optimistic. With a foundation, I don’t think that will work.

Are you building with a basement?
The 10T€ for the garage are, as described above, only the reserve.
Only if we really have no additional costs will the garage or garage + carport be built.

The site is currently being completely leveled by the land seller and the roads are being newly constructed. I just hope that he will lay the roads lower than the plots.
There used to be a factory on it. Soil replacement has been carried out.
I think what could still come financially is if the soil stability is not adequate.
We’ll see if we can have the soil survey done before purchase.

Hello,

It is supposed to be a city villa 9x9 m external dimensions without any bay windows, etc., on a base slab. The interior area is about 130 m². Two price-wise quite identical offers are available.

Regardless of not knowing which offers from which providers you have - even for a house "only" according to the valid Energy Saving Ordinance - €1350/sqm/living space is not the highest ...

The mentioned €12,000 are supposed to cover all earthworks and connection costs. The land is currently being completely leveled by the property seller and the streets are being newly laid out. I am just hoping that they lay the streets lower than the plots. Previously, there was a factory on it. Soil replacement has been done. I think what might still come financially is if the soil’s bearing capacity isn’t suitable. Let’s see if we can do the soil survey before purchase.

I already posted you a link for the incidental building costs. For the house connections you should calculate about €8,000 and for unforeseeable foundation extra costs another good €8,000.

The €10,000 for the garage, as described above, is only the reserve. Only if we really have no additional costs will it come to the garage construction or garage + carport.

For a double garage 6 x 6 you can assume about €12,000; prefab garage and with FD. By the way, a carport is not significantly cheaper than a standard prefab garage - if it is supposed to be of reasonable quality

Kind regards