By plane

From Hamburg airport, continue

a) by taxi:

   ~20 minutes, ~20 Euros

b) by public transport:

   - Take bus line 26 direction Bf. Rahlstedt.
   - At Alsterdorf bus stop, change to subway line U1.
     directions Ohlstedt, Volksdorf or Farmsen.
   - At Kellinghusenstr., change to subway U3
     direction Muemmelmannsberg.
   - Get off the subway at Feldstrasse and walk to the office.

By train

   - Get off your train at Dammtor Station, if possible.
   - Change to local Train S21 (direction Elbgaustraße),
     S31 (direction Altona), or S11 (direction Blankenese)
   - Go to next stop at Sternschanze and walk to the office.

   - If your train does not stop at Dammtor Station,
     get off at Central Station (Haupbahnhof, HBf)
     and change to one of same local trains as from Dammtor.

   - a taxi takes
     ~5 minutes and ~5 Euros from Dammtor
     ~10 minutes and ~10 Euros from Central Station

   - if you don't have much luggage but a bit of time, *and* the weather permits,
     you can also walk from Dammtor to the office (~ 25 Minutes)

   - Dammtor is smaller, nicer, and closer than the Central Station

You can find details on public transportation including timetables at http://www.hvv.de.