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A Rent Zestimate® is Zillow's estimated monthly rental price, computed using a proprietary formula. It is a starting point in determining the monthly rental price for a specific property. Learn more

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A Zestimate® home valuation is Zillow's estimated market value. It is not an appraisal. Use it as a starting point to determine a home's value. Learn more

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Make Me Move is a free and easy way to tell others the price you'd be willing to sell your home for.

Bank Owned properties may include properties that are either owned by the bank or managed by the bank for others. Not all properties listed as "bank owned" are owned by the bank. Contact the real estate agent for more information.

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Why use Zillow?

Zillow helps you find Castro Valley real estate listings. By analyzing information on thousands of homes for sale in Castro Valley, California and across the United States, we calculate home values (Zestimates) and the Zillow Home Value Price Index for Castro Valley proper, its neighborhoods, and surrounding areas.