Atherton, CA Building Permits & Teardown Predictor
We track every Atherton 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: What is the teardown ROI for a home in Atherton? · Who tracks demolition & building permits in Silicon Valley? · Can you SB 9 lot-split in Atherton? 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 Atherton
Atherton 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
Atherton Market Metrics
| Permits Trackedall permits on file | 5,450 |
|---|---|
| Demolition Permitssince January 1, 2023 | 75 |
| New-Construction Permitssince January 1, 2023 | 90 |
| High-Probability Teardowns | 9 Active |
| Total Declared Permit Valueall permits on file | $918,537,845 |
Atherton & San Mateo County Building Permits
AddressIntel tracks 5,450 Atherton 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 Atherton 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 Atherton
| Address | Teardown Score | List Price |
|---|---|---|
| 333 Walsh Rd | 95 | $9,850,000 |
| 28 Holbrook Ln | 90 | $5,888,000 |
| 298 Alameda De Las Pulgas | 75 | $4,799,000 |
| 28 San Benito Ave | 65 | $7,950,800 |
| 55 Flood Cir | 45 | $8,200,000 |
| 61 Lloyden Dr | 40 | $5,699,000 |
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Recent Atherton Building Permits
The latest Atherton building permits and demolition filings, drawn from 5,450 permits we track for the city, pulled from municipal sources and updated regularly.
| Address | Type | Value | Issued |
|---|---|---|---|
| 93 CAMINO POR LOS ARBOLES | NEW ACC STR - DETACHED GARAGE | — | 2026-09-10 |
| 93 CAMINO POR LOS ARBOLES | ADU COMPLIES - OTHER | — | 2026-09-10 |
| 93 CAMINO POR LOS ARBOLES | JADU - OTHER | — | 2026-09-10 |
| 93 CAMINO POR LOS ARBOLES | ADU COMPLIES - OTHER | — | 2026-09-10 |
| 93 CAMINO POR LOS ARBOLES | NEW RES - NO/BASEMENT | — | 2026-09-10 |
| 250 ATHERTON AVE | NEW ACC STR FLAT FEE - SWIM POOL =< 1000SF | — | 2026-09-09 |
| 55 PALMER LN | REROOF - MAIN RES =< 5000SF | — | 2026-09-09 |
| 36 MELANIE LN | ALT RES - OTHER | — | 2026-09-09 |
Atherton Teardown & Permit FAQ
How many teardown opportunities are there in Atherton?
AddressIntel currently tracks 9 high-probability teardown opportunities in Atherton, scored by lot value, structure age, and neighborhood comps.
What is the typical developer ROI on a Atherton teardown?
We do not publish a single Atherton figure, because there is no honest one: returns swing on land cost, buildable envelope, and comps. Instead, every Atherton 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 Atherton building permits?
AddressIntel tracks Atherton building permits (5,450 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 Atherton?
AddressIntel tracks Atherton building and demolition permits (75 full-structure demolition permits since January 1, 2023), updated regularly from municipal sources.