Grading & Drainage: Camarillo vs Thousand Oaks
How do grading & drainage rules compare between Camarillo, CA and Thousand Oaks, CA?
Camarillo and Thousand Oaks have similar restriction levels.
Camarillo, CA
Ventura County
Camarillo issues grading permits under CMC Title 16 (Building Code), which incorporates the California Building Code's grading and drainage provisions (CBC Appendix J). Any cut, fill, or change to surface drainage that exceeds adopted thresholds requires plans, a soils/geotechnical report on hillside sites, and inspection sign-offs.
View full Camarillo rules →Thousand Oaks, CA
Ventura County
Grading activities in Thousand Oaks require permits under TOMC Chapter 7 and must comply with drainage requirements to prevent water from flowing onto neighboring properties. Hillside grading has additional geotechnical and engineering requirements.
View full Thousand Oaks rules →Key Facts Comparison
| Fact | Camarillo | Thousand Oaks |
|---|---|---|
| Code Section | CMC Ch. 16.04; CBC Appendix J | - |
| Permit Threshold | Cut >5 ft or fill >50 cu yd | Typically 50+ cubic yards |
| Hillside Sites | Geotechnical report required | - |
| Drainage | May not be redirected onto neighbor | Cannot direct water onto neighbors |
| Hillsides | - | Geotechnical report required |
| Code | - | TOMC Chapter 7 |
Highlighted rows indicate differences between cities.
Camarillo FAQ
When does Camarillo require a grading permit?
When you cut more than 5 feet, fill more than 50 cubic yards, or alter the established drainage pattern on the lot — per CBC Appendix J as adopted by CMC Chapter 16.04.
Thousand Oaks FAQ
Do I need a grading permit in Thousand Oaks?
Yes, if your project involves excavation or fill exceeding approximately 50 cubic yards. Even smaller projects must comply with drainage requirements. Contact Community Development at (805) 449-2100.
Can I regrade my yard to change drainage?
You may regrade your property but must ensure water does not flow onto neighboring properties. A grading permit and drainage plan may be required depending on the volume of earth moved.
Are there special rules for hillside grading?
Yes, hillside properties require geotechnical reports addressing soil stability, landslide potential, and slope analysis. Enhanced erosion control and engineered drainage solutions are typically required.
Compare other topics
See how Camarillo and Thousand Oaks compare on other ordinance categories.
Want to add a third city?
Use our full comparison tool to compare up to three cities.
Open Comparison Tool