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San Mateo County
Generated August 31, 2026 at 12:11 AM
60°F
Clear · H 83° / L 54°
This report tracks 0 verified updates in Portola Valley, plus 18 nearby regional updates while activity here is light — all drawn from public records, official sources, and local listings on Neighborhood Insider.
Every item below is a real record from public data, official sources, or local listings on the platform. AI summaries are generated only from these verified items — we never fabricate data, dates, or sources. Sections with no confirmed data for this area are omitted.
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Activity in Portola Valley is light right now, so we've added 18 nearby regional updates to keep this report useful. Nearby items are tagged Nearby and show their own location — never presented as inside Portola Valley.
Active public-safety notices and emergency alerts — what to be aware of in the area right now.
AI summary: 13 updates tracked for Portola Valley across safety & alerts. Most recent: “Disturbance, Excessive Noise”.
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Get a report for your neighborhoodShowing 6 of 13.
Construction, permits, and zoning activity that signal how the area is changing and growing over time.
AI summary: 5 updates tracked for Portola Valley across development & housing. Most recent: “New Construction — 1778 HAMILTON AV 2 , SAN JOSE CA 95125”.
New Construction — 1778 HAMILTON AV 2 , SAN JOSE CA 95125
ADU Accessory Dwelling Unit · New Construction · $47,322 valuation
New Construction — 4848 ANNA DR 2 , SAN JOSE CA 95124
ADU Accessory Dwelling Unit · New Construction · $99,043 valuation
Sub-Trades Only — 1312 BLEWETT AV , SAN JOSE CA 95125-2305
Single-Family · Sub-Trades Only
Sub-Trades Only — 573 FALCON PL , SAN JOSE CA 95125-0000
Single-Family · Sub-Trades Only
Tenant Improvement — 5353 ALMADEN EX C , SAN JOSE CA 95118-3603
Retail · Tenant Improvement · $590,000 valuation
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