General contractors in Portola Valley, CA 94028
3 general contractors, with local market data for this ZIP.
Area profitability, construction90 / 100Strong market, open field
Typical home value$4,331,000+12.0% in the past year
New homes permitted, 20252,216San Mateo County
Homeowners81.9%2,625 households
Source: Zillow (home value and housing demand in the score), data through Sep 2026. Permits and households: U.S. Census Bureau.
A Plus BuildersConstruction company · 3130 Alpine Rd, Portola Valley(209) 742-7242 · apbcal.com
B W ConstructionGeneral contractor · 110 Russell Ave, Portola Valley(650) 851-1071 · bwconstruction.biz
Geoff Okarma ConstructionGeneral contractor · 5020 Alpine Rd, Portola Valley(650) 529-9967 · geoffokarmabuilds.com
Construction in ZIP 94028 at a glance
Local building angle: San Mateo County permitted 2,216 new homes in 2025, including 1,708 apartment units. 7% of the homes in this ZIP were built since 2000.
Local figures are estimates from public records and Zillow housing data, updated regularly.