Oxnard, CA Building Setbacks & Zoning: Setback Rules (2026)
Key Facts
- R-1 front yard setback
- 20 ft. (15 ft. floor if averaging)
- R-1 interior side yard
- 10% of lot width, 3-5 ft.
- R-2 front yard setback
- 25% of lot depth, 25-60 ft.
- R-3/R-4 front yard setback
- 20 ft., or 15 ft. with alley access
- MH-PD front yard setback
- 10 ft.; 20 ft. near public way
- Exceptions section
- Sec. 16-24 (additional requirements)
Summary
Oxnard's Development Standards table at Code Section 16-23 sets a 20-foot front yard setback for R-1 single-family lots, or the block average for 60% of the block if less, but never under 15 feet. Interior side yards must equal 10% of lot width, at least 3 feet and no more than 5 feet. Other residential zones carry different numbers under the same table.
SEC. 16-23. DEVELOPMENT STANDARDS. The following table sets forth development standards for all of the residential zone districts in the city. Standard Zone District R-1 R-2 R-3 R-4 MH-PD ... 20 ft.; or 25% of the 10 ft. the average depth of the 20 ft. from for 60% of lot, not 20 ft.; 15 public way or block, but less than 25 ft. if 20 ft.; 15 other Front yard not less ft. or more access to ft. if access residential setback than 15 ft. than 60 ft. all parking to all or commercial min. See Section is from an parking is zone or use.
See Section 16-24 for alley from an alley See Section 16-24 for additional 16-25 for additional requirements additional requirements requirements
Official source re-checked September 7, 2026: no newer edition of the code had been published (publisher’s edition: Contains Supplement current through 1-26-2026).
Full Breakdown
Section 16-23 governs dimensional standards for every residential zone: R-1, R-2, R-3, R-4, and the MH-PD mobile home zone. For R-1, the front yard setback is 20 feet, or the average setback for 60% of the block, whichever applies, but the table sets a 15-foot floor regardless of the averaging method; Section 16-24 lists additional requirements and exceptions the Director may allow into that setback. The interior side yard for R-1 is 10% of the lot's width, with a 3-foot minimum and a 5-foot cap, so a wide R-1 lot doesn't owe a proportionally larger side yard once it hits 5 feet.
The other residential zones use different formulas from the same table. R-2 lots carry a front setback equal to 25% of lot depth, floored at 25 feet and capped at 60 feet. R-3 and R-4 lots both use a 20-foot front setback that drops to 15 feet when all required parking takes access from an alley. The MH-PD mobile home zone sets a flat 10-foot front setback, but requires 20 feet where the lot faces a public way or abuts another residential or commercial zone or use, with Section 16-25 supplying mobile-home-specific exceptions.
Corner lots get a separate side-yard rule under the same Section 16-23 table: the street-side yard on an R-1 or R-2 corner lot is 50% of the required front yard setback, R-3 corner lots use one-half of the required front yard, and reverse corner lots follow the standard interior-lot setback instead. Any dimensional standard in this table is enforceable as a zoning-code violation like any other Chapter 16 requirement, and the Planning Division checks compliance at the building-permit and inspection stage before a structure can be finaled.
Violations & Fines
Building or maintaining a structure that encroaches into a required setback violates Chapter 16 and is enforced like any other zoning violation: Section 16-3 routes prosecution to Section 1-10, which punishes it as a general misdemeanor of up to a $1,000 fine and six months in jail, or as an infraction with escalating fines of $100, $200, then $500, with each day of the encroachment counted as a separate offense.
Frequently Asked Questions
What's the front yard setback in Oxnard's R-1 zone?
How wide does my side yard need to be in R-1?
Do setbacks change in Oxnard's other residential zones?
What if I build inside the required setback?
Sources & Official References
Other rules in Oxnard
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