There are quite a few that have been converted. 44 was previously mentioned. 23 (http://www.sothebyshomes.com/norcal/sale�� would also fit the bill. It was also a former residence of Jerry Brown. 33 was on the market last year though I would describe it a quirky rather than lavish.
Firehouse 44.http://www.casasugar.com/3419687