Château de Sainte-Assise, 17th-century castle in Seine-Port, France.
Château de Sainte-Assise is a castle in Seine-Port, south of Paris, featuring a classical main facade flanked by two pavilions. The building combines classical and Italian-inspired architectural elements in a symmetrical layout surrounded by a large park.
The castle was built in 1608 to replace an older feudal manor and served as a noble residence for centuries. In 1922, Radio France acquired the property and converted it into a transmission site.
In the 18th century, the estate welcomed King Louis XV as a guest, surrounded by artists and thinkers of the time. The grounds still carry a sense of the social life that once took place there, making the setting feel layered with past gatherings.
The castle sits on Rue Croix-Fontaine in Seine-Port and is most easily reached by car via the A6 motorway, exiting near Saint-Fargeau-Ponthierry and then following the RD 50. The surrounding area is quiet and rural, so driving is the most practical way to get there.
The grounds still have transmission antennas standing on them, a reminder that the estate served as a radio broadcasting center for nearly a century. This shift from a noble home to a broadcast facility gives the place a history that few French castles share.
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