8451 N ETON AVE, Chatsworth - Porter Ranch, 91304
In the Chatsworth - Porter Ranch neighborhood, grading work is being performed to install a Tier 1 Onsite Wastewater Treatment System (OWTS) for a new 3-bedroom Accessory Dwelling Unit (ADU). This includes a 1,000-gallon septic tank and two leach lines.
This permit has been issued, and the work is being managed by an Owner-Builder. The project cost is not specified in the permit details.
For those in Chatsworth - Porter Ranch planning an ADU, this project highlights the necessary grading and septic system installation for a 3-bedroom unit.
Issued
July 31, 2026
Expires
—
License
1 or 2 Family Dwelling
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View the official permit record
Tracking number, work description, cost, and dates
| Tracking Number | 25030-20000-05680 |
| Work Permit # | — |
| Job Filing Number | — |
| Work Type | Grading |
| Status | Issued |
| Job Description | PROPOSED TIER 1 OWTS FOR 3 BEDROOM ADU1. 1,000 GAL SEPTIC TANK2. TWO (2) 95' x 3' x 5' DEEP W/ 1.5' ROCK LEACH LINES |
| Floor / Unit | — |
| Estimated Cost | Not reported |
| Approved | August 27, 2025 |
| Issued | July 31, 2026 |
| Expires |
| — |
| BBL | — |
| BIN | — |