It depends on a couple of things. First your purchase price X .0125. Than you have local taxes, such as local school bonds, etc. It also depends on the area, sometimes downtown areas taxes are .015. However downtown San Diego is in a re-development and there property taxes are currently lower. If you were going to take a ball park figure I would count on 1.5% to be safe.
Make sure you receive a Property Tax Liability from your realtor when you get into contract, read below on what this will explain for you to understand your tax liabilities on your purchase.
PROPERTY TAX LIABILITY - Includes the state-mandated "Notice of Special Tax" (for Mello Roos Community Facilities Districts) and "Notice of Special Assessment" (1915 Bond Act) and a detailed breakdown of all local taxes to help you fully satisfy statutory requirements and standard-of-care. EFFECTIVE JAN 1, 2006: Now includes the mandatory Supplemental Tax Bill Disclosure.
I give one of these to everyone of my buyers along with a Natural hazard Disclosure, and environmental screening.
Let me know if i can be of any help. I am a san diego realtor...Catherine Barden, (760)815-3866