Surprisingly, it made the most economical sense to do so, her builder told People magazine.
According to Dan Reedy of Onshore Construction and Development, the North Palm Beach pad -- located just 10 miles from her ex-husband Tiger Woods' new home -- was built in the 1920s, and didn't meet South Florida's building codes to withstand hurricanes. It was also infested with termites and carpenter ants.
According to TMZ, her new home will mirror the one that was just torn down, boasting 9 bedrooms, 2 living rooms, a detached guest house, and a wine cellar.
Nordegren is still reportedly dating businessman Jamie Dingman, despite allegations that he is a "player." Dingman, whose father is billionaire Michael Dingman, has been linked in the past to Bridget Moynahan and Princess Madeleine of Sweden.