View Sample Data of Sold Prices - This Website uses smart technology to match homeowners with county property records for your Union City house values and home values in 94587, California. Once the correct information of the Property Owner, your email address and phone number are entered, you will be emailed the most recent 15 records in your neighborhood of Union City and 94587 by proximity to your property to find what is my home worth. This free service is exclusively provided by subscribing local Union City real estate agents and professionals, Jeff Pereyda GRI & SRES of TriCity Real Estate Brokers, Inc. who may contact you by email or phone to keep you updated on current market conditions, homes, property selling prices of Union City real estate. For the non-disclosure states of ID, IN, IA, KS, MS, MO, NM, TX, UT and WY, click here.