Setback Rules: Castaic vs El Monte
How do setback rules rules compare between Castaic, CA and El Monte, CA?
Castaic and El Monte have similar restriction levels.
Castaic, CA
Los Angeles County
Setback requirements in unincorporated LA County are established under Title 22, Section 22.110. Typical R-1 zone: 20 ft front, 5 ft side, 15 ft rear. The Director of Public Works may grant setback modifications without hearing. ADUs require 4 ft side/rear setbacks per state law.
View full Castaic rules →El Monte, CA
Los Angeles County
El Monte building setbacks vary by zoning district per Table 17.20-2. ADUs require 4 ft side/rear setbacks. Accessory buildings need 4 ft rear setback, 10 ft from street side on corner lots. Mechanical equipment must be 3 ft from property lines.
View full El Monte rules →Key Facts Comparison
| Fact | Castaic | El Monte |
|---|---|---|
| R-1 Front | Typically 20 ft | - |
| R-1 Side | Typically 5 ft | - |
| R-1 Rear | Typically 15 ft | - |
| ADU | 4 ft side/rear per state law | 4 ft side and rear |
| Accessory | - | 4 ft rear, 10 ft street side (corner) |
| Mechanical | - | 3 ft from property line |
| Code | - | Table 17.20-2, Sec. 17.60.130 |
Highlighted rows indicate differences between cities.
Castaic FAQ
What are the standard residential setbacks in LA County?
In R-1 zones, typical setbacks are 20-25 feet front, 5 feet side, and 15-25 feet rear. Exact requirements vary by zone. Check Title 22 or contact the Department of Regional Planning at (213) 974-6411 for your specific zone.
Can I build closer than the setback?
Only with a variance approved by the Regional Planning Commission, which requires a public hearing. ADUs have reduced 4-foot side and rear setbacks under state law. Eaves and similar projections may extend up to 2.5 feet into setbacks.
How do I find my property's setback requirements?
Look up your zoning designation on the LA County GIS portal (planning.lacounty.gov) and check Title 22 for the setback standards. Or call the Department of Regional Planning at (213) 974-6411 for assistance.
El Monte FAQ
How do I find my setback requirements?
Check El Monte zoning map for your parcel’s zoning district, then consult the zoning code for that district’s setbacks.
Can I build closer than the setback?
Only with a variance approved by the zoning board or if your structure qualifies for an exception.
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