That's a loaded question and I wouldn't generalize as it would depend on what kind of property (use; income, condo, house, etc.) and what the the need for value is for. I like statistics from the California Association of Realtors ("CAR") quarterly report and try Altos at http://research.altosresearch.com/research/CA/ALHAMBRA/552
That's a neat snapshot of month to month activity. You know what they say; "supply & demand" and right now, the supply has gone up a lot in the last 3 months, where we have a buyer's market. There is a nine month home supply, number of sales on average have dropped 11.4% from last year, but yet again, the medium price is up 3% in most of California, however CAR is showing ALHAMBRA down 9% from last June, where the average medium is $500,000 as opposed to $550,000 (2006). Price strategically. Have your agent run a CMA.