Setback Rules: Bostonia vs San Diego
How do setback rules rules compare between Bostonia, CA and San Diego, CA?
Bostonia and San Diego have similar restriction levels.
Bostonia, CA
San Diego County
Building setbacks in unincorporated San Diego County are determined by the Zoning Ordinance based on zoning designation. Front, side, and rear setbacks vary by zone. Residential zones typically require 25-60 ft front, 10-35 ft side, and 25-60 ft rear setbacks depending on lot size and zone.
View full Bostonia rules →San Diego, CA
San Diego County
San Diego's building setbacks are established by zone in the Land Development Code Chapter 13, Article 1, Division 4, with specific dimensions in Tables 131-04C through 131-04G. Side setbacks for RS zones must be the greater of the table dimension or 10% of lot width, with combined side setbacks of at least 20% of lot width. Side setbacks cannot be less than 4 feet, and street side setbacks cannot be less than 10 feet. Steep lots (25%+ slope in front 50 feet) may reduce front setback to 6 feet.
View full San Diego rules →Key Facts Comparison
| Fact | Bostonia | San Diego |
|---|---|---|
| Front Setback | 25–60 ft (varies by zone) | - |
| Side Setback | 10–35 ft (varies by zone) | - |
| Rear Setback | 25–60 ft (varies by zone) | - |
| ADU Setback | 4 ft side/rear (state law) | - |
| Variances | Require hardship demonstration | - |
| Code Section | - | SDMC Ch. 13, Art. 1, Div. 4 (Tables 131-04C-G) |
| Side Minimum | - | 4 ft minimum; 10% of lot width or table value, whichever greater |
| Combined Sides | - | At least 20% of lot width |
| Street Side | - | 10 ft minimum |
| Steep Lots | - | Front setback may reduce to 6 ft (25%+ slope) |
Highlighted rows indicate differences between cities.
Bostonia FAQ
What are the building setbacks for my property?
Setbacks depend on your zoning designation. Contact County PDS or check the Zoning Ordinance for your specific zone. Setbacks vary significantly between rural, semi-rural, and village residential zones.
Can I get a reduced setback?
You may apply for a variance, which requires demonstrating a hardship related to your property. Variances are not routinely granted and require a hearing before the Board of Supervisors or Zoning Administrator.
Do setbacks apply to fences and sheds?
Fences and small accessory structures may have different setback requirements than primary structures. ADUs have state-mandated 4-foot side and rear setbacks regardless of zone.
San Diego FAQ
What are the building setbacks for my property?
Setbacks depend on your specific zone (RS-1-1 through RS-1-7, RM zones, etc.). Check Tables 131-04C through 131-04G in the Land Development Code for your zone's specific requirements.
Can setbacks be reduced on steep lots?
Yes. For lots where at least half of the front 50 feet has a 25% or greater slope, the front setback may be reduced to a minimum of 6 feet.
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