Market Online

Belmont, CA Building Permits & Teardown Predictor

We track every Belmont 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 Belmont? 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 Belmont

Belmont 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

Belmont Market Metrics

Permits Trackedall permits on file63
Demolition Permitssince January 1, 2023n/a
New-Construction Permitssince January 1, 2023n/a
High-Probability Teardowns38 Active
Total Declared Permit Valueall permits on file

Belmont & San Mateo County Building Permits

AddressIntel tracks 63 Belmont 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 Belmont 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 Belmont

AddressTeardown ScoreList Price
2032 Lyon Ave95$1,499,000
510 Sterling View Ave75$1,548,000
641 Waltermire St72$1,298,000
1080 Judson St65$1,810,000
425-427 Wessex Way65$1,799,000
2808 Wakefield Dr50$3,480,000

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Recent Belmont Building Permits

The latest Belmont building permits and demolition filings, drawn from 63 permits we track for the city, pulled from municipal sources and updated regularly.

AddressTypeValueIssued
2829 SAN JUAN BLVDALTERATION - ALTERATION2026-09-10
1440 FIFTH AVEALTERATION - WINDOWS2026-09-10
1039 CONTINENTALS WAYALTERATION - ALTERATION2026-09-08
1604 FRANCIS AVEALTERATION - WINDOWS2026-09-08
1039 CONTINENTALS WAYALTERATION - ALTERATION2026-09-08
806 ANITA AVEALTERATION - INTERIOR REMODEL2026-09-04
4112 MARSTEN AVEALTERATION - RETAINING WALL2026-09-04
3200 UPPER LOCK AVEALTERATION - DECK2026-09-03

Belmont Teardown & Permit FAQ

How many teardown opportunities are there in Belmont?

AddressIntel currently tracks 38 high-probability teardown opportunities in Belmont, scored by lot value, structure age, and neighborhood comps.

What is the typical developer ROI on a Belmont teardown?

We do not publish a single Belmont figure, because there is no honest one: returns swing on land cost, buildable envelope, and comps. Instead, every Belmont 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 Belmont building permits?

AddressIntel tracks Belmont building permits (63 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 Belmont?

AddressIntel tracks Belmont building and demolition permits, updated regularly from municipal sources.