Since the HVCC's implementation appraisers can no longer do a "value check" for a lender's customers.  It is illegal.  If you are seeking to refinance you could check the below links to see how your home may fare.  If you are buying, this would be a place to check ststs in the properyy you are considering.

IMPORTANT POINTS TO REMEMBER:

THESE STIES MAKE NO CONDITION ADJUSTMENTS.

THESE SITES MAKE NO LOCATION ADJUSTMENTS.

THESE SITES ONLY WORK WITH RECENT PUBLIC RECORDS.  AN APPRAISER IS REQUIRED TO INCLUDE THE LATEST FORCLOSURE SALE AND MARKET TRENDS.

MOST OF THE VALUES YOU GET USING THESE SOURCES WILL BE HIGHER THAN AN ACTUAL SITE VISIT APPRAISAL.

Bank of America avm  (free)

eappraisal (free)

Home Values by Yahoo (free)

Zillow (free)