You can twist it any way you want, but the state provides funds for carrying out a construction based on a building application. Whether you build or not does not depend solely on you. The banks and the building authority also have a say. If you submit a new building application in three months, the old one is anyway void and the matter is settled. After moving in, you have to provide proof that everything went as planned. At the latest then it becomes clear that there was some "fooling around," and believe me, you are certainly not the only one with this plan – our state knows that too. And if there is one thing we know, it is that our state is no fun when it comes to money – then I wouldn’t want to be in your shoes.