This month’s roundup of the 10 most expensive new listings in Seattle includes two houseboats — one in Portage Bay and the other on Lake Union.

All properties were listed in the city of Seattle within the past 30 days.

1. Undisclosed address
$14,500,000
Listed by Michael Doyle of Windermere Real Estate Midtown

2. 1917 10th Ave. E
$4,980,000
Listed by Brooks Beaupain of Windermere Real Estate East

3. 2241 39th Ave. E
$4,250,000
Listed by Mary P. Snyder and Bob Bennion of COMPASS

4. 2816 Boyer Ave. E Unit B
$3,999,950
Listed by Adam Hestad and Lisa Kissinger of COMPASS

5. 1406 McGilvra Blvd. E
$3,995,000
Listed by Sandy Nichols of Windermere Real Estate East

6. 1928 Shenandoah Drive E
$3,900,000
Listed by Deborah Young of Windermere Real Estate Midtown

7. 312 Prospect St.
$3,700,000
Listed by John Boukalis of Berkshire Hathaway HomeServices NW Real Estate

8. 2606 26th Ave. W
$3,650,000
Listed by Barbara Jones of COMPASS

9. 907 N. Northlake Way
$3,600,000
Listed by Jay Kipp of Realogics Sotheby’s International Realty

10. 511 Lakeside Ave. S
$3,500,000
Listed by Maria Lindberg of RE/MAX Gateway

All listing data obtained from Redfin and the Northwest Multiple Listing Service.