U3 or U6, Giselastraße station (U-Bahnhofplan PDF)
Line 54, Bus stop Giselastraße (Bus stoop is located in Martiusstraße, see station plan PDF) Line 154, Bus stop Georgenstraße (see station plan PDF)
Line 27, Bus stop “Nordendstraße” – at the corner of Georgenstraße ( A little farther but can be walked, see Google-Maps )
Arriving by car is not recommended. There ia almost no parking. To park on the street you have to by a ticket at the official vending machines. As far as I know its good for two hours max. Parking in the whole area is managed by the city – more info in German only (PDF)
There are plenty of bike racks and other ways to secure your bike. On the premises biking is (officially) not allowed: “Radfahren verboten”. So you better push your bike. IMPORTANT: There’s a passage in front of the copy shop. It is very dangerous for you and others to drive through on you bike. People are crossing it while going from building 2 to 3 and vice versa. You cant see them and they can’t see you.