It depends on how much dirt moves, how deep you cut or fill, and whose jurisdiction you're in. Many Southern California jurisdictions require grading permits above roughly 50 cubic yards or beyond certain cut/fill depths — and hillside areas are stricter. Pool digs are usually covered under the pool's building permit. Here's the practical version.
| Where your lot is | Who permits grading |
|---|---|
| Simi Valley, Thousand Oaks, Camarillo, Moorpark (city limits) | That city's Building & Safety / Public Works |
| Unincorporated Ventura County | Ventura County Public Works |
| City of LA (San Fernando Valley) | LADBS |
| Unincorporated LA County, Calabasas, Malibu area | LA County Public Works / city; coastal zone adds Coastal review in Malibu |
| Santa Clarita (city limits) | City of Santa Clarita |
Approved grading plan set on a tailgate with the site behind it
Who pulls what: pool builders pull pool permits; owners or their engineer-of-record typically obtain grading permits (we supply contractor info and execute to the approved plan); and everyone's dig starts with DigAlert 811 — that one's free and required by state law.
If it's modest re-grading below your city's volume threshold and you're not redirecting drainage at a neighbor, often no. Cross the threshold, touch a slope, or build a pad for a structure and you're in permit territory. We'll give you a straight answer for your address.
Stop-work orders, fines, and — worst — being forced to remove or re-do unpermitted fill with engineering you should have had anyway. Unpermitted grading also surfaces in escrow and can tank a sale. Not worth it.
Simple lot grading with an engineered plan: often a few weeks. Hillside plans with soils review: longer, sometimes months. Coastal-zone parcels in Malibu add their own review cycle up front.
Free site visits and same-week estimates across Ventura & Los Angeles counties. Call, text, or send the job details.
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