In California property taxes are limited by Prop 13 which passed back in the late 70's. Your taxes are based essentially on your assessed value as of the date of purchase, and do not increase as your property appreciates. Of course if you sell it and buy a new, similarly valued property they skyrocket.
I bought my condo for $255,000 back in 1999. It is now valued at $650,-700,000 but my base property taxes have not increased by any significant amount.
What really ticks me off is that the city has found a way to increase my overall tax burden by tacking on things like salt water (we flush with salt water here) and trash collection (which should be a fee, not a tax!!!). The additional city-imposed burden is about $600... all of which used to be paid out of my HOA dues! Of course the HOA dues didn't decrease accordingly. Now that I'm HOA president, I'm going to raise this issue!!!