Final touches are being added to a new Mercer Island home, which expected to be finished in 2010. The enormous Washington estate — a stone’s throw from Seattle — will be a staggering 13,600 square-foot behemoth complete with seven bedrooms and 12 bathrooms. The $32 million home is being built on a 1.7-acre waterfront lot on Lake Washington, the likely source of much of the home’s appeal to potential buyers. The stone and stucco home will have four fireplaces, vaulted ceilings and every arrangement of room, bar and office space. Outside, a spa and swimming pool are planned along with parking space for six cars. [via realtor]