Simi Valley · Zoning · CO
Simi Valley CO zoning: height, setbacks and lot size
In Simi Valley's CO zone, generally buildings can be up to 48 ft (3 stories) tall and the front setback is 20 ft plus 1 ft for each ft or portion thereof over 20 ft in height, with the conditions listed below (Simi Valley code, read October 2026).
Key points
- Maximum building height: 48 ft
- Maximum number of stories: 3 stories
- Minimum front setback: 20 ft plus 1 ft for each ft or portion thereof over 20 ft in height (For structures more than 20 ft in height)
- Minimum side setback: None required (Not adjacent to a residentially zoned parcel)
- Minimum rear setback: None required (Not adjacent to a residentially zoned parcel)
CO is a zoning district in Simi Valley. Every value below was read from the Simi Valley Municipal Code and links to its section (read October 2026). State laws such as the ADU and SB 9 rules can allow more on a residential lot. General information, not legal advice — read the code text and check with the city before you build.
Development standards in CO
The general rule for a typical lot in this zone. Zoning tables often attach notes, such as rules for corner lots, lots next to a residential zone, or new subdivisions only. Open “code text” under a value to see the table cell or sentence it was read from.
| Maximum building height | 48 ft § 9-26.040 · code textTable row “Primary structures”, column “CO”: 48 ft and 3 stories, except as provided by Section 9-26.050 |
|---|---|
| Maximum number of stories | 3 stories § 9-26.040 · code textTable row “Primary structures”, column “CO”: 48 ft and 3 stories, except as provided by Section 9-26.050 |
| Minimum front setback | 20 ft plus 1 ft for each ft or portion thereof over 20 ft in height Applies: For structures more than 20 ft in height § 9-26.040 · code textTable row “Front and street side”, column “CO”: 20 ft for structures more than 20 ft in height, 20 ft, plus 1 additional ft for each ft or portion thereof by which the structure exceeds 20 ft in height. |
| Minimum side setback | None required Applies: Not adjacent to a residentially zoned parcel § 9-26.040 · code textTable row “Sides (each)”, column “CO”: None required unless located adjacent to a residentially zoned parcel. In those cases the setback shall be 20 ft, plus 1 additional ft for each ft or portion thereof by which the structure exceeds 20 ft in height. |
| Minimum rear setback | None required Applies: Not adjacent to a residentially zoned parcel § 9-26.040 · code textTable row “Rear”, column “CO”: None required unless located adjacent to a residentially zoned parcel. In those cases the setback shall be 20 ft, plus 1 additional ft for each ft or portion thereof by which the structure exceeds 20 ft in height. |
When a different number applies
The code sets other values for particular lots, buildings or locations in CO:
- Minimum side setback: 20 ft plus 1 ft for each ft or portion thereof over 20 ft in height — Located adjacent to a residentially zoned parcel § 9-26.040
- Minimum rear setback: 20 ft plus 1 ft for each ft or portion thereof over 20 ft in height — Located adjacent to a residentially zoned parcel § 9-26.040
Not on this page
We did not find a general lot size, lot coverage, FAR, density limit for CO in the zoning tables we read. The code may still set one elsewhere — check the Simi Valley Municipal Code.
Other Simi Valley zoning districts
Who this affects
Frequently asked questions
What is the maximum building height in Simi Valley's CO zone?
48 ft — Simi Valley Municipal Code § 9-26.040.
What is the maximum number of stories in Simi Valley's CO zone?
3 stories — Simi Valley Municipal Code § 9-26.040.
What is the minimum front setback in Simi Valley's CO zone?
20 ft plus 1 ft for each ft or portion thereof over 20 ft in height (for structures more than 20 ft in height) — Simi Valley Municipal Code § 9-26.040.
What is the minimum side setback in Simi Valley's CO zone?
None required (not adjacent to a residentially zoned parcel) — Simi Valley Municipal Code § 9-26.040.
What is the minimum rear setback in Simi Valley's CO zone?
None required (not adjacent to a residentially zoned parcel) — Simi Valley Municipal Code § 9-26.040.
General information, not legal advice.
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