in partnership
This $18,650,000 Mercer Island home boasts 8 beds, 9 baths and was built in 2007. Part of the Faben Point Community, this house is 13,721 square feet and sits on 1.23 acres, complete with an infinity pool. 6220 SE 22nd St. Mercer Island, WA 98040 (Image: Wendy Lister / Coldwell Banker Bain

5 most expensive PNW houses on Zillow

What does $18 million look like in this real estate market? Or if that's a little outside your wheelhouse, how about $9 million? Here's a look at the top 5 most expensive houses on the market in the Pacific Northwest, according to Zillow.