Putting that aside, my intention was rather to say that probably everyone, consciously or unconsciously, has not complied with the development plan for every little detail. So one should think very carefully about whether they want to piss off the neighbor or if a bigger backlash might come back.
For example, I know that we are one of the few who submitted a building application for the subsequently added terrace roofs with a depth >3m. We have also probably been one of the few to pave our driveway with permeable paving, even though it was mandatory in the development plan. We then had a significantly thicker layer of gravel installed because our subsoil is not easily permeable. I don't care about that with the neighbors as long as no one gives me a hard time.