Google Maps: https://goo.gl/maps/MqGrm8ZCaPgn4LUS7

By public transport:

Tram 12 (Bürostadt) or S-Bahn S7,S8,S9 (Niederrad Bahnhof). Go to the Aral Tankstelle, turn into the little road towards the woods (south) and walk down until you reach the parking lot and look out for Hashers.

By car:

From Frankfurt city: Follow signs to B44 Flughafen. From B44 (Kennedyallee) turn right towards Schwanheim / Niederrad on Niederräder Landstraße. Turn left then right into Triftstraße follow Adolf-Miersch-Straße and Lyoner Straße. Drive 1.5km until you see an Aral Tankstelle on your left. Make a U-turn, then turn right into Hahnstraße after the Aral Tankstelle. Follow until you reach the parking lot.
From A5 (North): Take Exit Niederrad (21), drive along Straßburger Straße than Lyoner Straße until you see the Aral gas station. Turn right.
From A5 (South): Take Exit F-Niederrad/F-Schwanheim (21) and turn right at the end of the ramp towards Ffm-Niederrad. After 600m turn right into Lyonerstraße towards Niederrad Bürostadt. Left at the traffic lights (Lidl market), next right into Hahnstraße Drive down to the end, to the right (Lyoner Straße), make a U-turn and than right again into Hahnstraße after the Aral Tankstelle. Follow until you reach the parking.