That would give the term "fairy tale forest" a whole new meaning ;-) Oh, that reminds me of what might have happened by now (?)
What can the mayor do about that? Municipal law is subject to state law, which is subject to federal law. That’s the crux of the matter. Whoever converts a building area should also remove all the trees to avoid the later hassle with the municipal building authority (remaining trees are subject to tree protection regulations), the state forestry authority (the trees together count as forest), and with bad luck, the nature conservation authority. If everything were handled by the municipality, it could be discussed during on-site appointments which trees must give way to the construction project and which should remain. This way, these disgusting complete clearings are avoided and the whole process is accelerated. The complaints from the people of Fichtenwalde about the builders or the Beelitz building authority are completely unfounded because some have to and others are not allowed to. The problem lies at the state level in the dispute between the authorities; this needs to be addressed.