United States For Sale: Celine Dion's Private Island Sotheby's By Islands Staff June 14, 2012 Inspired by our "Best Islands to Live On" issue? Celine Dion is selling her 830,000 sq ft private island in Quebec for just under $30 million. You can walk up the grand staircase or take this mansion's private elevator. | Sotheby's One of Celine's multiple sitting and entertainment areas. | Sotheby's One of the many dining areas. This room seats 18. | Sotheby's A French-inspired bedroom–one of six on the island. | Sotheby's