The property located at 6015 20th Ave NW #1 Seattle, WA 98107 is a Townhouse property. Built in 1910, the property at 6015 20th Ave Nw #1 has 4 bedrooms, 2 bathrooms, is approximately 1,795 square feet. It has a lot size of 1 Sq. Ft. (0 Acres). The property is located in the Retreat At 20Th condominium project.