San Francisco building permit report
14,075 building permits were issued in San Francisco, California over the last 12 months — including 1,808 reroofs, 2,860 remodels and additions, and 178 ADUs. Sourced from San Francisco's official permit portal.
Last updated September 16, 2026.
Month by month
| Month | All permits | Reroofs | Remodels & additions | ADUs | Pools & spas |
|---|---|---|---|---|---|
| Sep 2026 | 502 | 1 | 136 | 5 | 1 |
| Aug 2026 | 1,363 | 15 | 363 | 22 | 2 |
| Jul 2026 | 1,564 | 41 | 381 | 17 | 7 |
| Jun 2026 | 1,805 | 302 | 362 | 24 | 3 |
| May 2026 | 1,636 | 286 | 342 | 20 | 0 |
| Apr 2026 | 1,846 | 287 | 327 | 23 | 2 |
| Mar 2026 | 1,737 | 317 | 351 | 20 | 1 |
| Feb 2026 | 1,725 | 237 | 291 | 27 | 2 |
| Jan 2026 | 1,897 | 322 | 307 | 20 | 2 |
| Dec 2025 | 0 | 0 | 0 | 0 | 0 |
| Nov 2025 | 0 | 0 | 0 | 0 | 0 |
| Oct 2025 | 0 | 0 | 0 | 0 | 0 |
By work type
| Work type | Permits (12 mo) |
|---|---|
| Reroofs | 1,808 |
| Remodels & additions | 2,860 |
| ADUs | 178 |
| Pools & spas | 20 |
| Water heaters | 145 |
| Repipes | 22 |
| New construction | 82 |
Common questions about San Francisco permits
How many homes in San Francisco replaced their roof this year?
1,808 reroof permits were issued in San Francisco in the last 12 months. Each one is a home whose roof — a major factor in what a homeowners policy costs and whether a carrier will write it at all — was replaced on a specific, documented date.
How many ADUs were permitted in San Francisco?
178 accessory dwelling unit permits were issued over the last 12 months.
Are these numbers official?
They're compiled directly from San Francisco's own permit system — the same public records the city publishes — normalized and categorized by work type, refreshed nightly.
Other California cities
Work these permits. OneForm turns any of these lists into print-ready postcards with per-address QR tracking, under your own name and license number — so you know which addresses responded.
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