+ MU-1 ZONING: Permitted for multi-family / townhomes / retail stores / restaurants / professional offices + 55' Ft. Building Height Limit + Seller Financing + First time on market in 30 years. Seahurst 9 Apartments for sale in Burien's Seahurst neighborhood. This 1962-built property offers one, two, and three-bedroom units, averaging 651 sq. ft. each, with hardwood floors, copper plumbing, and a solid brick exterior. Seahurst 9 offers a rare investment opportunity with both residential and commercial possibilities, low competition in the area, and the chance for rent increases through unit upgrades.