Bostonia, CA Fence Regulations: Height Limits (2026)
Key Facts
- Authority
- San Diego County (unincorporated)
- Front/exterior side yard
- 42 inches max
- Rear/interior side yard
- 72 inches max
- Code section
- Zoning Ordinance 6708
- Over-height
- Needs 6708(h) exception
Summary
Bostonia is unincorporated San Diego County, so the County Zoning Ordinance sets fence heights: 42 inches max in a front or exterior side yard and 72 inches (6 feet) in a rear or interior side yard.
Front or exterior side yard: Permitted up to a maximum height of 42 inches. Rear or interior side yard: Permitted up to a maximum height of 72 inches.
Full Breakdown
Because Bostonia has no city government, the San Diego County Zoning Ordinance governs. Section 6708 permits fences and walls up to the maximum height applicable to the main building within the main building area, but only 42 inches in a front or exterior side yard and 72 inches in a rear or interior side yard. Open fences up to 8 feet may be allowed where the top two feet are barbed or razor wire for security. Taller fences require an Administrative Permit exception under Section 6708(h). Confirm your parcel's zone with County Planning & Development Services before building.
Violations & Fines
Zoning-Ordinance violations are enforced by County Code Compliance; unpermitted or over-height fences can trigger a notice to comply, removal orders, and building-permit penalties.
Frequently Asked Questions
Can I build a 6-foot fence around my Bostonia backyard?
Why does San Diego County set my fence height?
Sources & Official References
Other rules in Bostonia
How Bostonia compares: Cities That Allow the Tallest Residential Fences·California rules heatmap·Compare Bostonia to another location·View the California fence regulations overview
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Height Limits in Nearby Cities
How other cities in San Diego County handle height limits.