Home 商业地产 5010 ALPINE ROAD, Portola Valley 94028; Lots for Sale; 1/5 in San Mateo County By siteeditor. Published on 3 3 月, 2014. 5010 ALPINE ROAD, Portola Valley 94028; Lots for Sale; 1/5 in San Mateo County 5010 ALPINE ROAD, Portola Valley 94028 Approx Lot: 1,004,929 Sqft Type: Single Family Residential Land Price: $7,495,000 Date : Feb’2014