A three-year-old luxury waterfront mansion on Mercer Island’s western shore has sold. The Sandwith mansion, at 4137 Boulevard Place, sold for $13,250,000 on Nov. 21, according to property records. Its new owners are represented by a trust.

The home, which was never lived in, was first placed on the market for $32 million in 2009 when it was still unfinished and under construction. The price was reduced a year later to $28.8 million and offered unsuccessfully at auction — with a minimum bid of $15.5 million in 2011.

The lakefront home has an expansive west-facing view, with 160 feet of waterfront, seven bedrooms including a sumptuous master bedroom, 11.25 baths, a media room, a gourmet kitchen with adjacent family room, outdoor hot tub and swimming pool, an outdoor barbecue/kitchen/entertainment plaza, and a 152-inch plasma screen TV, visible when raised on a hidden lift adjacent to the outdoor pool.

Another Island mansion sold two years ago with a similar markdown in price.The waterfront Lytle mansion on the northwestern corner of the Island was first listed for sale in 2004 for $40 million. It was also sent to auction and finally sold in 2010 for $15 million.

That luxury property is situated on two waterfront acres and includes two master suites, three kitchens, a personal workout gym, two wine cellars, and notably, an indoor 66-foot saltwater pool. There are gold leaf cove ceilings, Italian marble and hardwood floors, and a 12-foot Chihuly chandelier in the entry. There is a greenhouse, a stocked trout pond, and a deep water dock that can accommodate a 140-foot yacht.