It was suggested Corinna Schumacher plans to take her husband home because doctors believe his chances of ever recovering are now slim.
But Schumacher's manager Sabine Kehm denied even that a medical suite is being built at the mansion on Lake Geneva.
"The rumours that Corinna is remodelling her house to take the supposedly hopeless Michael home are absolutely groundless," she told the major German daily Bild.
The newspaper said the only construction occurring at the Schumacher house at present is a house for the seven time world champion's father Rolf.
Kehm also denied that Schumacher is now entering a permanently vegetative state, three long months after he struck his head on a rock whilst skiing in the French alps.
"I can only say again, there are signs that give us hope," she insisted.