The keys were available from the caretaker, but we had no contact with John during our entire 4 night stay. The walk to the DLR was about at least 10-15 minutes away, and we are brisk walkers. It is necessary to change to stations to the tube, so the entire trip to central London took about 40 minutes. This was our first Airbnb experience and we were disappointed in the cleanliness of the unit. It definitely needs a good scrubbing!