It has been a good couple of weeks if you own a Seattle penthouse condo. There were 5 units that went under contract, leaving just 8 penthouse units on the market in Downtown Seattle. Here are the 5 top floor units that found buyers: Watermark Penthouse - 1107 1st Ave #2001 2 bedrooms | 2.5 baths | 2,116 sq. ft. Huge west facing views. Modern kitchen, custom lighting, art alcoves, wireless surround sound and spacious master suite. Lumen Penthouse - 501 Roy ST #C224 3 bedrooms | 2.5 baths | 2,116 sq. ft. Original asking price $1,575,000 | Recent price