Integrated Design Engineers, PLLC Share: Civil EngineeringEarthquakeStructural Engineering Integrated Design Engineers, PLLC Visit Website 1200 5th Ave Ste 1208 Seattle, WA 98101-3115 (206) 264-1121 (206) 264-1122 (fax) Map What's Nearby? Distance: 5 10 15 20 25 50 mi.