For any other europeans, 169,000 sq ft = 15 700 m^2 (or slightly bigger than two football pitches joined up).<p>I don't know enough about retail space to say if this is ambitious or not? On the one hand, a ten year lease is a big commitment, on the other hand I guess AirBnB is thinking 'go big or go home', and in that case it might well get cramped sooner than that.