We have also submitted an application, but for a new building. We live in Wetteraukreis and the responsible persons are very busy. For new applications, it is advised here to finance differently at first, as the processing time is very long.
I submitted the application in July last year and have not received a final response yet. Our special situation is that we are building on a leasehold property. The Wibank wants to be registered in the land register before the property owner (municipality). The municipality generally does not do this. However, this funding condition only became apparent after about 6 months of processing time.
The interest rates of the Wibank are amazing, but everything else is simply outrageous.