| Business | Phone |
| A California Prprty Vltn Co 3002 Castro Valley Blvd, Castro Valley 94546 | (925) 258-1930 |
| Conklin Lemas Real Estate 20406 Redwood Rd, Castro Valley 94546 | (510) 888-8956 |
| Donohue Appraisal Svc 3137 Castro Valley Blvd # 214, Castro Valley 94546 | (510) 317-9595 |
| Jim Hausel Appraisal Svc 2811 Castro Valley Blvd # 209, Castro Valley 94546 | (510) 538-9704 |
| Coggin Appraisal Svc 19913 Forest Ave, Castro Valley 94546 | (510) 727-1167 |