The storied Liberty Hill home at 3690 21st Street, which sits on a nearly 6,000-square-foot, camouflaged corner lot and was built as a party/guest house for San Francisco Mayor James “Sunny Jim” Rolph in 1930, was purchased by Frederick Roeber, who was a graduate of the California Institute of Technology (Caltech), a Caltech staff scientist and a named inventor on a number of Google’s search engine patents, for $4.3 million in 2008.
Roeber spent another $8 million restoring, upgrading and expanding the now 4,700-square-foot home. And yes, that’s a hidden passage though the bookcase in the new double-height library and office space (which leads to a further hidden storage room).
Deeded to Caltech after Roeber passed away last year, the home was priced at $11.85 million and listed this past April. And having been reduced to $9.985 million in mid-May, the “Mayor’s Mansion” has now been on the market for 72 days, 39 of which have been at the reduced list price.