South San Francisco, CA Building Permits & Teardown Predictor
We track every South San Francisco 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: Find new construction homes in nearby Brisbane · Who tracks demolition & building permits in Silicon Valley? · Can you SB 9 lot-split in South San Francisco? Run the screener · How to estimate developer ROI on a teardown rebuild
The free weekly Peninsula Plays brief
One email a week on Peninsula permits, teardowns and sales: what sold, what is sitting, and which houses just pulled the permit that says they are about to change. Built from permits, parcels and recorded sales, no spam.
Why Developers Target South San Francisco
South San Francisco 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
South San Francisco Market Metrics
| Permits Trackedall permits on file | 292 |
|---|---|
| Demolition Permitssince January 1, 2023 | 3 |
| New-Construction Permitssince January 1, 2023 | 0 |
| High-Probability Teardowns | 31 Active |
| Total Declared Permit Valuesince January 1, 2023 | — |
South San Francisco & San Mateo County Building Permits
AddressIntel tracks 292 South San Francisco 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 South San Francisco 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 South San Francisco
| Address | Teardown Score | List Price |
|---|---|---|
| 728 Commercial Ave | 95 | $1,050,000 |
| 654 Ash Ave | 80 | $899,000 |
| 843 Larch Ave | 75 | $1,188,000 |
| 632 1st Ln | 65 | $2,700,000 |
| 502-508A Commercial Ave | 60 | $3,588,000 |
| 523 Baden Ave | 55 | $949,950 |
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Recent South San Francisco Building Permits
The latest South San Francisco building permits and demolition filings, drawn from 292 permits we track for the city, pulled from municipal sources and updated regularly.
| Address | Type | Value | Issued |
|---|---|---|---|
| 2556 ADAMS CT | Residential Building - Alteration | — | 2026-10-23 |
| 325 COMMERCIAL AVE | Residential Building - Alteration | — | 2026-10-23 |
| 859 CAMARITAS CIR | Residential Building - Alteration | — | 2026-10-23 |
| 453 GRAND AVE | Residential Building - Alteration | — | 2026-10-23 |
| 286 HOLLY AVE | Sewer Lateral | — | 2026-10-23 |
| 480 FORBES BLVD | Commercial Building - Tenant Improvement | — | 2026-10-22 |
| 130 FRANCISCO DR | Residential Building - Addition | — | 2026-10-21 |
| 121 RAMONA AVE | Residential Building - Alteration | — | 2026-10-21 |
South San Francisco Teardown & Permit FAQ
How many teardown opportunities are there in South San Francisco?
AddressIntel currently tracks 31 high-probability teardown opportunities in South San Francisco, scored by lot value, structure age, and neighborhood comps.
What is the typical developer ROI on a South San Francisco teardown?
We do not publish a single South San Francisco figure, because there is no honest one: returns swing on land cost, buildable envelope, and comps. Instead, every South San Francisco 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 South San Francisco building permits?
AddressIntel tracks South San Francisco building permits (292 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 South San Francisco?
AddressIntel tracks South San Francisco building and demolition permits (3 full-structure demolition permits since January 1, 2023), updated regularly from municipal sources.