What was permitted
Homeowners in the Castro/Upper Market area can explore the details of a significant renovation project at 4135 19th St. This project involves a horizontal addition across two floors, expanding living space with a new bedroom and bathroom, and updating windows.
This permit was issued on September 14, 2026, with an estimated project cost of $220,000. The work, managed by S L M Development Inc., also includes excavation and the construction of new retaining walls.
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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 | 202510238002 |
|---|---|
| Work permit # | — |
| Job filing number | — |
| Work type | Additions & Alterations · 2 Family Dwelling |
| Status | issued |
| Job description | horizontal addition floors 1 & 2. "rooms down" expansion into first floor, new bath and bedroom new windows. excavation of 28.7 cubic yards at rear, new retaining walls. |
| Floor / unit | — |
| Estimated cost | $220,000 |
| Approved | September 14, 2026 |
| Issued | September 14, 2026 |
| Expires | — |
| BBL | — |
| BIN | — |
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