San Mateo County Building Permits
High-ROI building permits, teardowns, and luxury renovations parsed daily across San Mateo County and the Silicon Valley Peninsula — your real-time permit alpha and deal finder.
Contractor Intel Dashboard
Total Active Pipeline
$123.6M
Leading Contractor
LINE CONSTRUCTION LLC
Leading Architect
Field Architecture
Top General Contractors
By ValuationLINE CONSTRUCTION LLC
$2.4M
W Y DEVELOPER INC
$2.3M
Drew Maran Construction inc
$2.3M
Alef Construction Corporation
$2.2M
L & A CUSTOM HOMES INC
$1.9M
Top Architects
By ValuationField Architecture
$2.3M
Form + One
$2.1M
ALEX TZANG ARCHITECTS
$1.4M
Hyland Design Group
$1.4M
Taeho Um & Associates Structural Engineers
$1.2M
Why San Mateo County building permits predict the next teardown
Every demolition and major renovation in San Mateo County starts with a building permit. By parsing residential permits across Menlo Park, Atherton, Burlingame, Redwood City, and the rest of the Peninsula the day they are filed, AddressIntel surfaces high-ROI teardowns and luxury renovations weeks before they show up anywhere else. Filter by city and estimated valuation to spot where developers are deploying capital right now.
Tracking a single municipality? Drill into City of San Mateo building permits for that city's permit portal and teardown activity, or browse every Peninsula municipality in the locations directory.
New to reading permit data? Our guide on the demolition permit process, timelines, and costs explains how long approvals take in San Mateo County and what each permit type signals about a property's development trajectory.
Want to act on what you find? Run any address through the real estate investment screener for a full teardown-ROI breakdown, or pipe live permit events into your own systems with the real estate data API and webhooks.
San Mateo County Building Permits FAQ
Where can I find building permits in San Mateo County?
AddressIntel tracks residential building permits across San Mateo County — new construction, additions, renovations, and demolitions — pulled from municipal sources and updated daily. Use the feed and search above to filter the latest San Mateo County building permits by city and estimated valuation.
Which San Mateo County cities does AddressIntel track building permits for?
We track building permits for the Peninsula cities of San Mateo County, including Atherton, Belmont, Burlingame, Foster City, Half Moon Bay, Hillsborough, Menlo Park, Millbrae, Redwood City, San Bruno, San Carlos, San Mateo, South San Francisco, and Woodside, plus neighboring Silicon Valley markets.
How often are San Mateo County building permits updated?
New residential building and demolition permits are parsed across San Mateo County every day, so high-ROI teardowns and luxury renovations surface the day they are filed — weeks before they appear on the MLS.
Related tools & research
Turn raw permit filings into actionable investment decisions.
Investment Screener
Filter active listings and off-market properties by teardown score and projected developer ROI.
Permit Data API & Webhooks
Get real-time permit.created webhooks and query historical permit data programmatically.
The Demolition Permit Process
Timelines and costs for getting demolition permits across Palo Alto, Menlo Park, and Millbrae.
Understanding Floor Area Ratio
How FAR limits, lot coverage, and daylight planes constrain what a permit can ultimately build.
Peninsula Locations Directory
Drill into permit activity city by city across all 21 Peninsula municipalities.
SF Peninsula Market
Market-level intelligence, briefings, and trends for the Silicon Valley luxury corridor.