Airport BER is 30 km and about 50 minutes drive from the hotel. On request we can help you organise a transfer from the airport to the hotel.
Otherwise, you are welcome to use the public Airport Express (FEX) and the regional trains (RE7, RB14) between Berlin Central Station and the train station “Flughafen BER – Terminal 1-2”. The S9 and S45 S-Bahn trains run every 20 minutes.