Grading & Drainage: Pomona vs Santa Clarita
How do grading & drainage rules compare between Pomona, CA and Santa Clarita, CA?
Pomona and Santa Clarita have similar restriction levels.
Pomona, CA
Los Angeles County
Pomona requires grading permits for earthwork exceeding thresholds. Block wall and fencing plans must be consistent with the grading plan. Drainage must be directed away from neighboring properties.
View full Pomona rules →Santa Clarita, CA
Los Angeles County
Hillside grading is heavily regulated to minimize environmental impact. Standards aim to maximize positive site design and reduce slope instability.
View full Santa Clarita rules →Key Facts Comparison
| Fact | Pomona | Santa Clarita |
|---|---|---|
| Permit | Grading permit required | - |
| Plans | Must include drainage provisions | - |
| Fencing | Must be consistent with grading plan | - |
| Code | Pomona Development Code / Building Code | - |
| Hillside Standards | - | SCMC 17.51 hillside section |
| Drainage | - | Must direct to approved outlets |
| Grading Permit | - | Required for earthwork |
| General Plan | - | Consistency required |
Highlighted rows indicate differences between cities.
Pomona FAQ
Do I need a grading permit?
Generally required for earth-moving over 50 to 100 cubic yards or changes to existing drainage patterns. Small landscaping projects are usually exempt.
My neighbor changed their grading and water flows onto my property. What can I do?
Contact Pomona code enforcement. Redirecting drainage onto neighboring properties violates most municipal codes. The neighbor may be required to restore proper drainage.
Santa Clarita FAQ
Do I need a grading permit?
Generally required for earth-moving over 50 to 100 cubic yards or changes to existing drainage patterns. Small landscaping projects are usually exempt.
My neighbor changed their grading and water flows onto my property. What can I do?
Contact Santa Clarita code enforcement. Redirecting drainage onto neighboring properties violates most municipal codes. The neighbor may be required to restore proper drainage.
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