Grading & Drainage: Anaheim vs Garden Grove

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.

When do I need a grading permit in Garden Grove?

A grading permit is required when excavation or fill work exceeds approximately 50 cubic yards. Smaller projects may be exempt but must still maintain proper drainage. Contact Community Development at (714) 741-5312 to confirm your project requirements.

Can my grading project direct water onto a neighbor's property?

No. All grading must maintain proper drainage patterns and direct stormwater to approved outlets such as streets or storm drains. You cannot alter the grade of your property in a way that causes water to flow onto adjacent lots.

Do I need an engineer for grading work in Garden Grove?

Yes, grading plans for permitted projects must typically be prepared by a California-licensed civil engineer. The plans must show existing and proposed contours, drainage patterns, erosion controls, and any retaining wall details.