Single-family house 2 floors without basement - floor plan - costs - feasibility?

: I was just wondering that too.

As for the cost estimate, I can only tell you from my own amateur experience. I think most things might be roughly in the ballpark (without guarantee ), but a few things stood out to me:
1. What is meant by the €3,000 for the item roof terrace/garage/railing/tiles/outdoor stairs? What is that supposed to be?
2. I find the surveyor costs very optimistic. Just for comparison: We paid about €1,000 for the surveyor for rough/fine surveying and cadastral surveying (mandatory for us) plus another €650 for the creation of the site plan for the building application.
3. Speaking of which: What about the costs for the building permit? Money the city wants, e.g. waiver of the pre-emption right or allocation of the house number etc. (e.g. in new development areas?)
4. Costs for soil investigation? Heat load calculation? That's quickly another thousand gone.
5. What about earthworks?

Regarding the floor plan, I can and don’t want to say anything, there are professionals for that and some things are subjective anyway. Otherwise, I also think you are a bit quick and already getting lost in details. As long as you don’t have a plot yet, your planning is worth almost nothing. Having a rough idea of what the house might look like is okay, but the rest results from the plot. The house must be adapted to your plot and often there is a development plan that you have to follow. In the end, you start again at zero because with your "dream plot" you simply might not be allowed to build exactly what you might want now or because the orientation of the plot makes another distribution more sensible. Take care of a plot first and then go to a professional - architect or good general contractor.

I have now looked again at your cuts and floor plans:
Do you really mean by the item roof terrace.... this entire structure that should go down from the upper floor to the ground floor? I am happy to be proven wrong, but I consider €3,000 to be unrealistically low for that.
We alone have already paid almost €1,800 (gross) for our exterior cellar staircase (precast concrete exterior staircase with 13 steps) – without railing, without step coverings – let alone tiles and roof terrace on top.

Hello Wanderdüne,

the thing with the property is probably correct, which is why I started the post exactly with the first two sentences from me. I got the statutes from the surrounding municipalities and found many properties there with exactly this arrangement.

We currently live in ownership, so it is not quite as critical as it is for some others when building. And if we don’t find a suitable place, we will stay where we are and will remodel something here so that the children and parents have space.

I don’t find the time aspect that bad at all. One paints, another builds a railway all their life, the next one gets annoyed about everything and everyone, etc. Everyone has the time and what they do with it doesn’t matter. Everything is finite and if it doesn’t help, it doesn’t hurt either.

If it turns out that I should rather go to an architect, then at least they have a rough idea of what we want and need to accommodate. With an investment of almost half a million euros, you can’t put in enough upfront effort. But that is my personal feeling again. How long do some people think about what kind of car it should be and the investment does not stand in any relation.

Hello builders 2014,

the rooftop terrace consists only of the railing, tiles, and the outdoor staircase made of steel about 75 cm wide. No items are to be carried up and down here. It is only a way for the children to go up and down. This came about over the roof, and having a recess here again or whatever you want to call it didn’t appeal to me on other houses either. The remaining costs are included in the shell construction of the house and the shell construction of the garage. The ceiling here does not even have to be concrete but can also be made of wood. Otherwise, the 3000€ would really be far too little.

Ok, I see that. I don't know if the amount is sufficient. But at least it sounds more plausible.

As for the planning: I fully understand you. We also spent a lot of time beforehand figuring out what we want and what we don't. Only with the already very concrete floor plan do I feel that you are going into too much detail, where some basics are still missing. Many then simply make the mistake of becoming too fixated on what they have put down on paper (or in the computer) and no longer allowing new and perhaps better ideas.

Hello builders 2014,

what amount should I include approximately for points 2+3+4?

For point 5, I have included the costs in the foundation slab and wrote with all work under the slab. If that is also too little, I will improve it here as well. €15,000 is something already.

As of now, we will build with a local construction company using solid construction. A neighbor of my relatives.

He gave me an approximate cubic meter price of €330 for the house and €200 for the garage.

But understandably, he also has no interest in inspecting anything without the building ground.

His time is also valuable.