Grading & Drainage: Anaheim vs Irvine
How do grading & drainage rules compare between Anaheim, CA and Irvine, CA?
Anaheim has fewer restrictions than Irvine.
Anaheim, CA
Orange County
Anaheim requires grading permits under AMC Title 17 for earthwork exceeding minimum thresholds. The city's Storm Drainage Manual governs site drainage design for both public and private facilities.
View full Anaheim rules →Irvine, CA
Orange County
Irvine's Grading Code (Title 5, Division 10) establishes comprehensive requirements for grading permits, drainage, and site preparation. Grading permits are required for projects that alter terrain or drainage patterns. Plans must demonstrate proper drainage and prevent increased runoff to neighboring properties. The city reviews grading plans for compliance with engineering standards and conducts inspections during construction.
View full Irvine rules →Key Facts Comparison
| Fact | Anaheim | Irvine |
|---|---|---|
| Permit | Required for grading | - |
| Engineer | Licensed civil required | - |
| LID | Encouraged for runoff | - |
| Code | AMC Title 17 | - |
| Code Reference | - | Title 5, Division 10 — Grading Code |
| Permit Required | - | For projects altering terrain or drainage |
| Drainage | - | No increased runoff to neighbors |
| Plan Review | - | Engineering review required |
| Inspections | - | During and after grading |
Highlighted rows indicate differences between cities.
Anaheim FAQ
Do I need a grading permit in Anaheim?
Yes, for earthwork exceeding minimum thresholds. Plans must be prepared by a licensed civil engineer and approved by Public Works.
What drainage requirements apply to new development?
Projects must direct water away from structures into approved drainage systems. On-site detention may be required per the Storm Drainage Manual.
Irvine FAQ
Do I need a grading permit in Irvine?
Yes, a grading permit is required for projects that alter terrain or drainage patterns. The city's Grading Code establishes comprehensive requirements for plan review and construction inspections.
Can I change drainage on my Irvine property?
Any changes to drainage patterns require engineering review and a grading permit. You cannot increase stormwater runoff onto neighboring properties.
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