Grading & Drainage: San Jose vs Santa Clara
How do grading & drainage rules compare between San Jose, CA and Santa Clara, CA?
Santa Clara has fewer restrictions than San Jose.
San Jose, CA
Santa Clara County
San Jose regulates grading and drainage through SJMC Chapter 17.04 (Grading Ordinance) and Title 20 (Zoning). A grading permit is required for excavation or fill exceeding 50 cubic yards, cuts or fills exceeding 5 feet in depth, or any grading on slopes steeper than 20%. All grading must maintain pre-development drainage patterns or provide engineered drainage solutions that prevent adverse impacts to neighboring properties.
View full San Jose rules →Santa Clara, CA
Santa Clara County
Santa Clara requires grading permits for moving 50+ cubic yards of earth, with drainage plans demonstrating runoff does not impact neighbors or city infrastructure.
View full Santa Clara rules →Key Facts Comparison
| Fact | San Jose | Santa Clara |
|---|---|---|
| Code Section | SJMC Chapter 17.04 | - |
| Permit Threshold | 50+ cubic yards or 5+ ft cut/fill depth | 50 cubic yards or drainage alteration |
| Slope Threshold | Grading on slopes >20% requires permit | - |
| Retaining Walls | Walls over 4 ft require building permit | Over 4 feet need engineered permit |
| Hillside Policy | Additional review for hillside properties | - |
| Neighbor Impact | - | Cannot redirect runoff onto adjoining lots |
| Slope Trigger | - | Steeper than 3:1 requires permit |
| Contact | - | Building Division (408) 615-2440 |
Highlighted rows indicate differences between cities.
San Jose FAQ
Do I need a grading permit to level my backyard?
If the work involves more than 50 cubic yards of soil or cuts/fills deeper than 5 feet, a grading permit is required. Smaller projects may still need erosion controls.
Can I redirect drainage from my property to my neighbor's?
No. Grading and drainage improvements must not concentrate or redirect water onto neighboring properties. Engineered drainage plans may be required.
Santa Clara FAQ
Do I need a permit to regrade my yard?
Yes, if you move over 50 cubic yards or alter drainage patterns, a grading permit is required.
Can I direct runoff to my neighbor fence line?
No, drainage plans must show runoff is controlled and not concentrated onto adjoining properties.
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