Construction documents according to the work contract §631 Building Code

Hello house construction expert,

Next year we will move into a [REH] from a developer. We already signed the purchase contract or work contract according to §631 of the Building Code last year.
Now, in the declaration of division, we received building plans (service phase 1: preliminary planning according to HOAI). However, they were copied so small that no measurements can be taken.
When we inquired about plans in original size, we were met with great incomprehension from the developer.

According to prevailing case law, the documents (building description and plans) provided upon acquisition of the building are sufficient for the buyer. Now we ask ourselves the question:
Do we have the right to the delivered plans in original size?
We look forward to your comments

I didn't receive that either, what do you need the original size for?

for example, we received these as a pdf or copied in A3, totally sufficient

Hello help help,

thank you for your response.
The plans we received in PDF format are copied so small that the measurements cannot be taken.
After 10 years from the issue date, the energy certificate is invalid. To issue a new one, the energy consultant ultimately needs the measurements of the property.
Furthermore, we want the measurements of the interior walls for furnishing the house.
Our question about the original size refers not only to the completeness of the documents but also to a possible resale.