Bostonia, CA Building Setbacks & Zoning: Setback Rules (2026)
Key Facts
- Authority
- SD County Zoning § 4800–4899
- Set by
- Setback Designator (Schedule C)
- Accessory bldg side/rear
- 3 ft walls, 2 ft eaves
- Purpose
- Light, air, privacy, open area
- Schedule
- Zoning Ordinance § 4810
Summary
San Diego County's Zoning Ordinance sets minimum front, side, and rear yard setbacks by a Setback Designator (Schedule C). Detached accessory buildings must sit at least 3 feet from interior side or rear property lines.
The purpose of these provisions is to establish minimum front, side, and rear yard setback requirements for all buildings and other structures within San Diego County in order to assure light, air, privacy, and open areas appropriate to the use, location, and impact of uses and structures.
Full Breakdown
Bostonia is unincorporated, so setbacks come from the San Diego County Zoning Ordinance Setback Regulations (§ 4800 et seq.). Each parcel's Setback Designator (a letter on Schedule C, § 4810) fixes the minimum front, side, and rear yard dimensions: e.g. designators can require interior side setbacks from 0 to 15 feet and rear setbacks from 0 to 50 feet. Detached accessory buildings must have walls no closer than 3 feet and eaves no closer than 2 feet to interior side or rear property lines (§ 4842). Look up your parcel's zone and designators through County Planning & Development Services before building.
Violations & Fines
Structures inside a required setback are zoning violations; the County can require setback compliance, a variance, or removal through code enforcement.
Frequently Asked Questions
What are the setbacks for my Bostonia property?
How close can a shed sit to my property line?
Sources & Official References
Other rules in Bostonia
California rules heatmap·Compare Bostonia to another location·View the California building setbacks & zoning overview
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Setback Rules in Nearby Cities
How other cities in San Diego County handle setback rules.