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🌍 Environmental Rules/Grading & Drainage

Anaheim vs Mission Viejo

How do grading & drainage rules compare between Anaheim, CA and Mission Viejo, CA?

Anaheim has fewer restrictions than Mission Viejo.

Anaheim, CA

Orange County

Some Restrictions

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.

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Mission Viejo, CA

Orange County

Heavy Restrictions

The Orange County Grading and Excavation Code (OCCO Title 7, Division 1, Article 8) requires grading permits for all excavation and earthwork in unincorporated areas. Section 7-1-805 prohibits grading, clearing, brushing, or grubbing without a permit from the Building Official. Drainage facilities must conform to Subarticle 11 of the OC Grading Manual.

View full Mission Viejo rules β†’

Key Facts Comparison

FactAnaheimMission Viejo
PermitRequired for grading-
EngineerLicensed civil required-
LIDEncouraged for runoff-
CodeAMC Title 17-
Code Section-OCCO Β§7-1-805 through Β§7-1-811
Permit Required-All grading/excavation/clearing
Drainage Reference-OC Grading Manual, Subarticle 11
Blasting Permit-OCCO Β§7-1-808 (OC Fire Authority)
Enforcement-OC Development Services

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.

Mission Viejo FAQ

Do I need a grading permit in unincorporated Orange County?

Yes. Under OCCO Β§7-1-805, all grading, clearing, brushing, and grubbing activities require a grading permit from the Building Official. This includes excavation, fill placement, and earthwork on private property.

What drainage requirements apply to grading in unincorporated Orange County?

Drainage facilities must conform to Subarticle 11 of the OC Grading Manual. Finished surfaces must direct water away from structures toward approved drainage facilities, and precise grading plans must show drainage patterns and connections to the public storm drain system.

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