Lot Coverage Limits: Simi Valley vs Thousand Oaks
How do lot coverage limits rules compare between Simi Valley, CA and Thousand Oaks, CA?
Simi Valley and Thousand Oaks have similar restriction levels.
Simi Valley, CA
Ventura County
Maximum lot coverage in unincorporated Ventura County varies by zone and area plan under §8106-1.4. Area plans for communities like El Rio, Lake Sherwood, Oak Park, Ojai Valley, Piru, and Thousand Oaks establish specific coverage limits and exceptions.
View full Simi Valley rules →Thousand Oaks, CA
Ventura County
Thousand Oaks limits the percentage of each lot that can be covered by structures and impervious surfaces under TOMC Chapter 9. Typical lot coverage in residential zones ranges from 25% to 40% depending on lot size and zoning district. ADUs may have exceptions under state law.
View full Thousand Oaks rules →Key Facts Comparison
| Fact | Simi Valley | Thousand Oaks |
|---|---|---|
| Area Plans | 8 communities with specific limits | - |
| ADU Exemption | ADUs exempt from coverage limits | - |
| Existing Communities | §8106-1.4.1.2 standards | - |
| Coverage Includes | All roofed structures | - |
| Code Section | §8106-1.4 | - |
| Residential | - | 25-40% depending on lot size and zone |
| Includes | - | All roofed structures |
| ADU Exception | - | State law allows up to 800 sq ft extra |
| Code | - | TOMC Chapter 9 |
Highlighted rows indicate differences between cities.
Simi Valley FAQ
What is the lot coverage limit for my property?
It depends on your zone and whether you're in an area plan or existing community. Eight area plans (El Rio, Lake Sherwood, Oak Park, Ojai Valley, Piru, Thousand Oaks, Saticoy, N. Ventura Ave) have specific limits.
Do ADUs count toward lot coverage?
No. Under state law, ADUs are exempt from lot coverage maximums, floor area ratio limits, and open space requirements.
How do I find my coverage limit?
Contact Planning at (805) 654-2488 with your address or APN. They can identify your zone, area plan, and applicable lot coverage standard.
Thousand Oaks FAQ
How much of my lot can I build on in Thousand Oaks?
Lot coverage limits range from 25% to 40% depending on your lot size and zoning district. All roofed structures including garages, sheds, and covered patios count toward the total.
Does a pool count toward lot coverage?
Swimming pools typically do not count toward lot coverage, but the surrounding decking and any covered structures do. Check your specific zone's regulations for details.
Can I exceed lot coverage for an ADU?
Yes, California state law allows an ADU of up to 800 square feet even if it would exceed the base zoning lot coverage maximum, providing important flexibility for accessory dwelling units.
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