What was permitted
A significant new residential project is underway at 3646 21st St in San Francisco's Castro/Upper Market neighborhood. This involves the erection of a 4-story wood-frame building with a basement, designed to house two family dwelling units.
This new construction project was issued on April 16, 2026, with an estimated cost of $2,500,000. Matarozzi/Pelsinger Builders Inc. is the contractor for this substantial development.
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View the official permit record
Tracking number, work description, cost and dates
View the official permit record
Tracking number, work description, cost and dates
| Tracking number | 202512242644 |
|---|---|
| Work permit # | — |
| Job filing number | — |
| Work type | New Construction (Wood Frame) · 2 Family Dwelling |
| Status | issued |
| Job description | erect 4-story over basement, type vb, 2-unit residential building. |
| Floor / unit | — |
| Estimated cost | $2,500,000 |
| Approved | March 30, 2026 |
| Issued | April 16, 2026 |
| Expires | — |
| BBL | — |
| BIN | — |
Related searches
new constructionwood frame2 family dwellingCastro/Upper MarketSan Franciscoresidential building$2,500,000