Buying or building a house in Berlin and the surrounding area is unfortunately not currently possible for us. Maybe in a few years.
Further terraced houses/apartments are to be built in Beelitz-Heilstaetten in autumn. It is near the train station, and the train will soon run every 30 minutes. You then travel about 45 minutes directly to Berlin Central Station without changing trains.
A primary school with a swimming pool and sports hall, a daycare center, shopping facilities, and a medical center are currently being built in the settlement. Furthermore, almost all offices from Potsdam-Mittelmark will be consolidated in Beelitz-Heilstaetten. Feel free to inform yourself about it.