San Francisco
Sep 21, 2023
Marshy private island in San Francisco Bay goes up for sale at $75M
Solano County listing appeals to Silicon Valley billionaires hoping to build new city
John Sweeney
San Francisco
Dec 29, 2025
SF-area island headed for natural restoration after failed development, legal battle
$4M sale placed land in environmental nonprofit’s hands
San Francisco
Jan 3, 2025
50-acre island in Solano County heads to auction sale
John Sweeney lists his marshy property for $40M, but it fails to attract a buyer