Contact

Parc Saint Christophe - 10 avenue de l'Entreprise - Pôle Magelan 2 - Niveau 1 - 95862 CERGY PONTOISE CEDEX
Tel. : +33 (0)1 34 24 38 20
Fax : +33 (0)1 34 24 38 21
Email : info@lheritier-alcen.com
GPS Coordinates : Latitude : 49.039598
Longitude : 2.033104
Follow the instructions below to get to our premises.
From Paris
By Car, via A15
Take the A15 towards Rouen. Continue straight ahead to Cergy, then follow CERGY-PONTOISE-AUTRES QUARTIERS. To get to the Parc Saint Christophe, you can take either EXIT 11 OR EXIT 12.
EXIT 11 : Take EXIT 11 towards CERGY-SAINT-CHRISTOPHE / OSNY. ATTENTION : WHEN LEAVING THE MOTORWAY, STAY IN THE LEFT-HAND LANE HEADING TOWARDS CERGY-SAINT-CHRISTOPHE. Join BOULEVARD D'OSNY and continue for 760m. At the roundabout, continue straight ahead along BOULEVARD D'OSNY for 222m. At the next roundabout (Rond-point Boulevard de la Paix), continue straight on for 469m. At the next roundabout (Rond-point du Haut de Gency), turn right onto BOULEVARD DE L'OISE and continue for 1 km. At the next roundabout (Rond-point du Tilleul), turn right and follow BOULEVARD DE L'OISE for 317m.
EXIT 12: Take EXIT 12 towards PUISEUX-PONTOISE / VAUREAL and follow BOULEVARD DU MOULIN A VENT for 400m. At the roundabout, continue straight ahead on Boulevard du Moulin à Vent to the next roundabout (Rond-point du Moulin à Vent). Continue straight on to the following roundabout (follow the signs for PARC ST CHRISTOPHE). At the next roundabout (Rond-point du Chêne), turn left (3rd exit) onto BOULEVARD DE L'OISE and continue for 740m.
Then, at the next roundabout (Rond-point du Cèdre), turn left onto AVENUE DE L'ENTREPRISE, the entrance to the PARC SAINT CHRISTOPHE. Continue straight ahead along AVENUE DE L'ENTREPRISE for about 300m, park your vehicle, then please go to the Park's reception. You will be given a badge and indications of how to drive through the park to get to LHERITIER.
By Car, via A16
Take the A16 towards PARIS. After the AMBLAINVILLE TOLL station, take the EXIT towards CERGY PONTOISE. Continue on the N184 for 5 km. Continue on the FRANCILIENNE ring road for 11 km. At SAINT-OUEN-L'AUMONE, join the A15 and continue straight on for 5.2 km (follow CERGY-PONTOISE-CENTRE then CERGY-PONTOISE-AUTRES QUARTIERS). Take either EXIT 11 OR EXIT 12, then follow the indications "By car, via A15" above to get to our premises.
By Train from SNCF– GARE DU NORD or SAINT LAZARE stations
The journey takes about 40 min (train) + 25 min (bus). If departing from GARE DU NORD (surface), take an SNCF Northern Line (Réseau Nord) train towards PONTOISE. If departing from SAINT LAZARE, take a train going to BOISSY L'AILLERIE or GISORS. Get off at PONTOISE station, then call us OR take the N° 45 BUS (the bus stop is situated above the SNCF train station). Get off the bus at the SAINT-CHRISTOPHE RER stop, then take the N° 40 BUS going to VAUREAL-LA SIAULE and get off at the ROND POINT DU CEDRE stop (the entrance to the PARC SAINT CHRISTOPHE) (view bus routes below), OR call us.
RER A (RECOMMANDE)
The journey takes about 38 min from CHATELET-LES HALLES. Take an RER A connection going to CERGY-LE-HAUT. Get off at CERGY SAINT-CHRISTOPHE station, then take the N° 40 BUS and get off at the ROND POINT DU CEDRE stop (view bus routes below), OR call us.
RER C
The journey takes about 42 min from PORTE MAILLOT (RER C) + 20 min (bus). Take an RER C connection going to PONTOISE. Get of at PONTOISE station (end of the line) then call us OR take the N° 45 BUS and get off at the SAINT-CHRISTOPHE RER stop, then take the N° 40 BUS and get off at the ROND POINT DU CEDRE stop (view bus routes below), OR call us.
By Bus, from CERGY-PONTOISE
Take the N° 45 Bus (view bus route below) at CERGY PREFECTURE, going to CERGY LYCEE JULES VERNE. Get off at the SAINT-CHRISTOPHE RER stop, then take the N° 40 BUS and get off at the ROND POINT DU CEDRE stop (view bus route below), OR call us.
Click here to view a plan of the Cergy-Pontoise area bus network
From Roissy Charles de Gaulle
By Car
Via the Francilienne ring road (Recommended): Take the direction TERMINAL 1 (AEROGARE 1), then follow the signs indicating CERGY PONTOISE and join the D104. Turn right onto the FRANCILIENNE ring road and continue for 16 km. At the Rond-point de la Croix Verte roundabout, turn left following the FRANCILIENNE and continue for about 8 km. Take the N184 (The Francilienne) and continue for 10 km. At SAINT-OUEN-L'AUMONE, join the A15 and contionue straight on for 5.2 km (follow directions for CERGY-PONTOISE-CENTRE then CERGY-PONTOISE-AUTRES QUARTIERS). Take either EXIT 11 OR EXIT 12, then follow the indications "By car, via A15" above to get to our premises.

Click here to view route via the Francilienne
Via Paris: From the airport, join the A1 via the access road going towards SAINT-DENIS / CERGY / PONTOISE / PARIS-CENTRE and go straight on for about 13 kms. Take EXIT 2 towards SAINT-DENIS-PLEYEL / SAINT-OUEN. Stay in the left hand lane to join BOULEVARD ANATOLE FRANCE. Join the A86 via the access road going towards GENNEVILLIERS / CERGY / PONTOISE / LA DEFENSE / NANTERRE / VILLENEUVE-LA-GARENNE, then take the A15 EXIT and continue straight on to CERGY. Take either EXIT 11 OR 12, then follow the instructions "By car, via A15" above to get to our premises.

Click here to view route via Paris
By Train/RER
The journey takes about 1h 40 min. Take the RER B line going to SAINT-REMY-LES-CHEVREUSES and get off at CHATELET-LES HALLES. At CHATELET-LES HALLES, take an RER A connection going to CERGY-LE-HAUT. Get off at CERGY-SAINT-CHRISTOPHE station, then take the N° 40 BUS and get off at the ROND POINT DU CEDRE stop (view bus routes above), OR call us.
By Bus
Take the 95-18 BUS from the TGV (train) station at Roissy CDG airport, going to CERGY-PONTOISE. Departures every hour. The journey takes about an hour. At CERGY-PREFECTURE, take the RER A (train) going to CERGY-LE-HAUT and get off at the next station, CERGY-SAINT-CHRISTOPHE OR take the N° 45 Bus, going to CERGY LYCEE JULES VERNE, and get off at the SAINT-CHRISTOPHE RER stop. To get to the Parc Saint Christophe, take the N° 40 BUS and get off at the ROND POINT DU CEDRE stop, OR call us (view bus routes above).
From Orly
By Car
From the airport, follow directions for PARIS. On the outskirts of Paris, join the BOULEVARD PERIPHERIQUE (outer ring road). Follow directions for LILLE, CHARLES DE GAULLE, SAINT-DENIS, PORTE DE LA CHAPELLE. Take EXIT 2-SAINT-DENIS-LA PLAINE towards SAINT-DENIS-CENTRE. Take the AVENUE DU PRESIDENT WILSON/NI. Turn left onto AVENUE DU PRESIDENT WILSON. Turn left onto RUE JULES SAULNIER/N412. Turn left onto BOULEVARD ANATOLE FRANCE/N410. Join the A86 by following directions for GENEVILLIERS/CERGY/PONTOISE/LA DEFENSE/NANTERRE/VILLENEUVE-LA-GARENNE. Take the A15. Follow the instructions "By car, via A15" above to get to our premises.
By Train/RER
The journey takes about 1h 33 min. Take the ORLYVAL shuttle from ORLY-SUD to ANTONY. At Antony, take the RER B train going to « Aéroport Charles de Gaulle 2 TGV ». Get off at CHATELET-LES HALLES station, and take an RER A connection going to CERGY-LE-HAUT. Get off at CERGY-SAINT-CHRISTOPHE station, then take the N° 40 BUS and get off at ROND POINT DU CEDRE stop (view bus routes above), OR call us.
From Beauvais (Amiens/Lille/The North)
By Car
From Beauvais (airport or town centre), follow directions indicating N1/A16 and AMIENS/CERGY-PONTOISE/PARIS to join the A16 motorway. At the toll station, join the A16, then continue straight ahead for about 43 km, following directions for CERGY-PONTOISE/PARIS. Take the N184, then the A15 and follow the instructions "By car, via A16" above to get to our premises.
N.B. There is no direct access to CERGY-PONTOISE from Beauvais airport by bus or train. If necessary, you should go to Paris and then follow one of the itineraries described above to reach LHERITIER. A shuttle is available between Beauvais airport and PARIS PORTE MAILLOT at flight arrival- and departure-times. The journey takes about 1h 15 min.










