All the other agents beat me to it...but San Francisco's treaurer has that information and how to calculate that value on any property in california... A helpful link for property tax calculations in San Francisco that you might find useful:
Taxes are based on the purchase price. So if the property sells for asking price of $399K, the annual taxes will be roughly $4,700. Lizete is correct - the property is currently in contract and has been since April 17th. I am sure you already know it's a short sale.
Paragon Real Estate Group
CA DRE 01844627