I don't know anything much about Seattle - but you should read Aussie thriller writer John Birmingham's latest book Wihthout Warning to find out why Seattle might be the safest place to move!
maps.google.com has a feature called Street View. It has full 360' imagery of Seattle. You can walk the streets of Seatle and look at the buildings, find hotels and restaurants, look at neighborhoods and schools. All from your computer. My WIP is partially set in Seattle and the street view was an incredible aid to providing accurate descriptions.