What was permitted
Homeowners in Sylmar considering property expansion can review this permit for a major residential development. This project involved converting an existing single-family dwelling into a duplex, including an attached accessory dwelling unit (ADU) and a carport, per SB9 regulations.
This significant building addition permit was issued on October 15, 2026, with a substantial estimated project cost of $642,000. The contractor is listed as unknown for this 1 or 2 Family Dwelling.
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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 | 26014-20000-01251 |
|---|---|
| Work permit # | — |
| Job filing number | — |
| Work type | Bldg-Addition |
| Status | Issued |
| Job description | 1)Conversion of (e) Single Family Dwelling with addition to a Duplex per SB9 Two Unit Development with attached ordinance ADU and carport |
| Floor / unit | — |
| Estimated cost | $642,000 |
| Approved | April 6, 2026 |
| Issued | October 15, 2026 |
| Expires | — |
| BBL | — |
| BIN | — |
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