The Sleepless in Seattle houseboat (err, really it is a floating home) is located at the end of the 2460 Westlake Ave E dock on Lake Union in Seattle. The four bedroom, 2,200 square foot home sits on a 2,700 square foot log float (which is a huge float!).
How it looks today

Sales history
The Sleepless in Seattle floating home last sold in 2014, off-market, for north of $2m (per the PSBJ). Prior to that it was owned for 21 years by Jim and Loretta Healy.