Coming from national airport (Zaventem) or United Kingdom :
Take MotorwayE40 and follow the signs to the city centre.
Go through the tunnels when you reach the 'Basilique de Koekelberg' and turn off at the Belliard (European Community). Follow the Belliard Street, keep on the right side of the road and do not go into the tunnels. Overtake the tunnel and go straight ahead, at the 3rd traffic light after the tunnel take a left (Avenue d'Auderghem).
Go straight ahead till you reach a roundabout, 'Schuman'. Take the 3rd street on the right, Rue Archimedes and continue till the traffic light. Take a left and afterwards the first street on the right, you are on the Boulevard Charlemagne.
New Hotel Charlemagne , 25-27 Boulevard Charlemagne, Brussels, Belgium