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
Check Teardown Probability
Enter any Peninsula address to instantly calculate its hidden developer value.
Why Developers Target San Mateo
San Mateohas 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 Tracked | 376 |
|---|---|
| Demolition Permits | 0 |
| New-Construction Permits | 50 |
| Median Teardown ROI | +13% |
| High-Probability Teardowns | 158 Active |
| Total Declared Permit Value | $75,420,480 |
San Mateo & San Mateo County Building Permits
AddressIntel tracks 376 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 | Est. Developer ROI | List Price |
|---|---|---|---|
| 0 Parrott Dr | 100 | +35% | $1,000,000 |
| 3801 Orinda Dr | 85 | +29% | $1,498,000 |
| 3031 Flores St | 85 | +35% | $1,798,000 |
| 2641 Holland St | 78 | +23% | $1,295,000 |
| 1703 Lexington Ave | 78 | +25% | $2,495,000 |
| 912 Viewridge Dr | 70 | +25% | $2,098,000 |
Get the weekly San Mateo teardown brief
New teardown opportunities, demolition permits, and developer ROI for San Mateo — straight to your inbox. Built for spec builders and developers.
Recent San Mateo Building Permits
The latest San Mateo building permits and demolition filings, drawn from 376 permits we track for the city — pulled from municipal sources and updated regularly.
| Address | Type | Value | Issued |
|---|---|---|---|
| 253 VIRGINIA AVE Unit: B SAN MATEO CA 944021645 | Single Family (Addition) - Add/Alter | $229,599 | 2026-07-24 |
| 1306 S CLAREMONT ST SAN MATEO 94402-2117 CA | Single Family (Alteration/Repair) - Kitchen & Bath Remodel (Flat) | $7,500 | 2026-07-24 |
| 713 E 16TH AVE SAN MATEO CA 94402-2131 | Single Family (Alteration/Repair) - Kitchen & Bath Remodel (Flat) | $13,600 | 2026-07-24 |
| 612 HIGHLAND AVE SAN MATEO 94401-2322 CA | Single Family (Alteration/Repair) - Kitchen & Bath Remodel (Flat) | $10,000 | 2026-07-24 |
| 628 COSTA RICA AVE SAN MATEO 94402-1013 CA | Single Family (New) - New | $85,953 | 2026-07-23 |
| 208 SAN MIGUEL AVE SAN MATEO 94403-2956 CA | Single Family (Addition) - Add/Alter | $313,091 | 2026-07-23 |
| 1259 NADINA ST Unit: B SAN MATEO CA 94402-2920 | Single Family (Alteration/Repair) - Alter | $106,792 | 2026-07-23 |
| 639 PICO AVE SAN MATEO 94403-1239 CA | Single Family (Alteration/Repair) - Kitchen & Bath Remodel (Flat) | $25,000 | 2026-07-22 |
San Mateo Teardown & Permit FAQ
How many teardown opportunities are there in San Mateo?
AddressIntel currently tracks 158 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?
Across scored San Mateo teardown candidates, the median projected developer ROI is approximately 13%. Actual returns depend on land cost, build spec, and timeline.
Where can I find recent San Mateo building permits?
AddressIntel tracks San Mateo building permits (376 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.