City of San Mateo Building Permits & Teardown Predictor
We track every San Mateo building permit, demolition filing, zoning change, and off-market transaction in one place, giving spec builders and developers a single feed of where the market is moving. Each permit is scored against lot value, structure age, and neighborhood comps to surface high-ROI teardown and new-build opportunities before they hit the MLS.
Related guides: Who tracks demolition & building permits in Silicon Valley? · Can you SB 9 lot-split in San Mateo? Run the screener · How to estimate developer ROI on a teardown rebuild
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The week's best teardown and spec-build plays across the Peninsula, with the developer ROI worked out from permits, parcels, and sold comps. One email a week, no spam.
Why Developers Target San Mateo
San Mateo has seen a surge in “mansionization”, older, smaller homes on large lots demolished to build luxury spec homes. AddressIntel's algorithm identifies these aging properties from Floor Area Ratio (FAR), recent neighborhood comps, and permit velocity.
- Automated Demolition Cost Estimates
- New-Build Proforma ROI Generation
- Real-time Permit Webhooks
San Mateo Market Metrics
| Permits Trackedall permits on file | 404 |
|---|---|
| Demolition Permitssince May 18, 2026 | 0 |
| New-Construction Permitssince May 18, 2026 | 16 |
| High-Probability Teardowns | 164 Active |
| Total Declared Permit Valueall permits on file | $78,080,584 |
San Mateo & San Mateo County Building Permits
AddressIntel tracks 404 San Mateo building permits as part of our San Mateo County building permits dataset, pulled from municipal sources and updated regularly. Whether you need to look up a single San Mateo building permit for one address or scan San Mateo County building permits for teardown and new-construction activity, every filing is scored for developer ROI and teardown potential.
Working a teardown? See our guide to the demolition permit process, or learn who tracks Silicon Valley building permits and how San Mateo County permit data reaches developers.
Top Teardown Opportunities in San Mateo
| Address | Teardown Score | List Price |
|---|---|---|
| 0 Parrott Dr | 100 | $1,000,000 |
| 240 N Fremont St | 90 | $1,150,000 |
| 3801 Orinda Dr | 85 | $1,498,000 |
| 420 Voelker Dr | 80 | $1,588,000 |
| 2641 Holland St | 78 | $1,295,000 |
| 912 Viewridge Dr | 70 | $2,098,000 |
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Recent San Mateo Building Permits
The latest San Mateo building permits and demolition filings, drawn from 404 permits we track for the city, pulled from municipal sources and updated regularly.
| Address | Type | Value | Issued |
|---|---|---|---|
| 250 HARVARD RD SAN MATEO 94402-2216 CA | Single Family (Alteration/Repair) - Kitchen & Bath Remodel (Flat) | $39,804 | 2026-08-07 |
| 204 ESTRELLA WAY SAN MATEO 94403-2939 CA | Single Family (Alteration/Repair) - Kitchen & Bath Remodel (Flat) | $30,000 | 2026-08-07 |
| 184 42ND AVE SAN MATEO CA 94403-5165 | Single Family (Alteration/Repair) - Kitchen & Bath Remodel (Flat) | $15,000 | 2026-08-05 |
| 1000 PARK PL Unit: H San Mateo 94403-7111 CA | Single Family (Alteration/Repair) - Alter | $19,116 | 2026-08-05 |
| 1000 HARVARD RD Unit: B SAN MATEO CA 94402-2828 | Single Family (Alteration/Repair) - Alter | $117,472 | 2026-08-05 |
| 1000 HARVARD RD SAN MATEO CA 94402-2828 | Single Family (Addition) - Add/Alter | $656,387 | 2026-08-05 |
| 725 E 16TH AVE SAN MATEO 94402-2131 CA | Single Family (Alteration/Repair) - Kitchen & Bath Remodel (Flat) | $20,388 | 2026-08-04 |
| 3131 SUNSET TER SAN MATEO 94403-3846 CA | Single Family (Addition) - Add/Alter | $79,365 | 2026-08-04 |
San Mateo Teardown & Permit FAQ
How many teardown opportunities are there in San Mateo?
AddressIntel currently tracks 164 high-probability teardown opportunities in San Mateo, scored by lot value, structure age, and neighborhood comps.
What is the typical developer ROI on a San Mateo teardown?
We do not publish a single San Mateo figure, because there is no honest one: returns swing on land cost, buildable envelope, and comps. Instead, every San Mateo property page carries an interactive build-to-zoning proforma — purchase, demolition, construction at current costs, cost of sale against size-matched comps — so each lot is underwritten on its own numbers.
Where can I find recent San Mateo building permits?
AddressIntel tracks San Mateo building permits (404 permits currently on file), including new construction, additions, and demolition filings, pulled from municipal sources and updated regularly. See the recent permits table above for the latest activity.
How do I find demolition permits in San Mateo?
AddressIntel tracks San Mateo building and demolition permits, updated regularly from municipal sources.