The property located at 8421 SE 46th St Mercer Island, WA 98040 is a Single Family Home property. Built in 2013, the property at 8421 Se 46th St has 5 bedrooms, 6 bathrooms, is approximately 4,510 square feet. It has a lot size of 11,249 Sq. Ft. (0.26 Acres). The property is located in the Mid Island neighborhood.