Despite all the amenities that the property has to offer, the home has had difficulty selling. In fact, it's been on the market since 2005 , following a costly expansion and renovation. Part of the reason the renovation took so long was because it included rotating the entire house 90 degrees. This helped to give the living room windows a prime sunset view over the pond. But with the Knowles-Carters as the new owners, it seems like all that work was well worth it.