Home 商业地产 6733 Sunnyslope Ave, Castro Valley, CA 94552; Lots for Sale; 1/10 in Alameda County By siteeditor. Published on 6 3 月, 2014. 6733 Sunnyslope Ave, Castro Valley, CA 94552; Lots for Sale; 1/10 in Alameda County Approx Lot: 21,344 Sqft Type: Vacant Lots Price: $269,500 Date : Feb’2014