Purchase of a shell construction

Hi,

I discovered a shell house in our city. Now the question for me is approximately how much the costs for the interior finishing would amount to. I am also curious about your opinions on the shell house, see the link.

Property description
For sale is a single-family house in bungalow style built in 2015 in shell condition with a covered terrace.
Works carried out so far: foundation work, floor slab, shell construction, windows (anthracite on the outside, white on the inside including shutters and window sills, large sliding-tilt element on the terrace side, front door), plastering on the solid interior walls, chimney for fireplace or wood stove, electrical work in the solid walls including meter cabinet, roof frame, underlay membrane, roofing (about 95%).
All remaining interior finishing work as well as landscaping are required.
Optionally, a prefabricated garage (anthracite) including sectional door (dimensions L-W-H approx. 8.84 m x 3.5 m x 2.34) as well as a soapstone wood stove can be taken over.

1. Question: Since when has the shell construction been standing? 2. Question: From when is the building permit? 3. Question: Is it still valid at all? 4. Question: Is it even possible to get a new building permit?

Roofing (approx. 95%). All remaining finishing work on the interior as well as the landscaping of the outdoor area are required.

What are the missing 5% of the roofing: missing roof tiles or just the metalwork (so the roof is completely sealed, only the gutter underneath is missing)?

I wouldn’t call this a shell anymore; it’s more of an advanced shell house. Did the financing fall through (builder became unemployed, divorced, widowed) or did the contractor go bankrupt?

Is the builder or the bank selling?

Has anyone by chance built something you like?

According to the link, the shell construction has been standing since 2015

Somehow the quoting is not working right now:

What are the missing 5% of the roof covering: missing roof tiles or just the metalwork (so the roof is completely sealed, only the gutter underneath is missing)?

- In the pictures at the link you can still see something missing from the roof covering (roof tiles), I think that is what is meant

I wouldn't call it a shell anymore, it is more of an advanced turnkey house. Did the financing fail (builder became unemployed, divorced, widowed) or did the contractor go bankrupt?

- I might ask about that soon

Is the builder or the bank selling? According to the internet the sale is handled by a real estate agent

- according to the ad the sale is handled by a real estate agent

- In the pictures see link one can see that some of the roofing is still missing (roof tiles), I think that is what is meant

No links are to be set here, and I don't see any either. "Not completely tight" is practically "not tight", and "water running behind a seal" is even the opposite of "tight", namely wet and complicated to dry / renovate.

Construction defects already incubated and just not yet "broken out" are very costly and annoying. If you then additionally cannot finance it yourself, you are practically already the next forced seller. In the worst case, you will have paid real estate transfer tax and two times a broker, realized another devaluation, and not gained a house ;-(

Whether the contractor (not insolvent, but still actually capable of warranty) still exists, I consider to be an essential value factor.