Fencing Requirements: Carson vs Castaic
How do fencing requirements rules compare between Carson, CA and Castaic, CA?
Carson and Castaic have similar restriction levels.
Carson, CA
Los Angeles County
Carson incorporates California's statewide pool barrier law through its Building Code. Under California Health and Safety Code § 115923, any enclosure used as a Swimming Pool Safety Act drowning-prevention feature for a single-family pool must be at least 60 inches high, have no gaps allowing a 4-inch sphere to pass, be unclimbable, and use self-closing, self-latching gates that open away from the pool with the latch placed at least 60 inches above the ground. Above-ground pool walls themselves can count as part of the enclosure where the wall meets the height standard.
View full Carson rules →Castaic, CA
Los Angeles County
Pool fencing in unincorporated LA County must meet CA Title 24 Chapter 31 standards. Minimum 60-inch barrier height, self-closing and self-latching gates, plus one additional safety feature per the Swimming Pool Safety Act. LA County Building & Safety inspects for compliance.
View full Castaic rules →Key Facts Comparison
| Fact | Carson | Castaic |
|---|---|---|
| Minimum fence height | 60 inches (Cal. HSC § 115923) | - |
| Max ground clearance under fence | 2 inches | - |
| Max gap size | Cannot allow passage of a 4-inch sphere | - |
| Gate | Self-closing, self-latching, opens away from pool; latch ≥60 in above grade | - |
| Climbability | Must have no handholds/footholds usable by a child under five | - |
| Height | - | 60 inches minimum |
| Gates | - | Self-closing, self-latching |
| Extra Safety | - | Cover, alarm, or door alarm |
| Inspection | - | LA County Building & Safety |
Highlighted rows indicate differences between cities.
Carson FAQ
Can I use a chain-link fence as my pool barrier in Carson?
Chain-link can comply only if the mesh openings do not exceed the 4-inch sphere test in HSC § 115923. Most standard 2-inch mesh chain-link is compliant for the gap rule, but it can be climbable; many jurisdictions require slats or a smaller mesh to satisfy the climbability standard. Confirm with Carson Building & Safety before installation.
Does my existing house wall count as part of the pool barrier?
Yes — the house wall can serve as one side of the enclosure provided that any doors leading from the house to the pool area are equipped with an SB 442-compliant safety feature, such as an exit alarm (HSC § 115922(a)(4)) or self-closing/self-latching door device with release no lower than 54 inches above the floor (HSC § 115922(a)(5)).
Do hot tubs need the same 60-inch barrier?
Hot tubs and spas at single-family homes are subject to HSC § 115922, but a locking safety cover meeting ASTM F1346 (HSC § 115922(a)(3)) is the most common compliance path for spas in lieu of a full 60-inch enclosure.
Castaic FAQ
What are the pool fencing requirements in LA County?
Fences must be 5+ feet high, non-climbable, with self-closing/self-latching gates (latch 54+ inches high on pool side). No openings allowing a 4-inch sphere to pass. Plus at least one additional safety feature (alarm, cover, or isolation fence).
Does my pool fence need a permit?
Yes. Pool barrier installation requires a building permit from LA County Building & Safety. The inspector will verify compliance with Title 24 Chapter 31 standards. Call (626) 458-3171.
What counts as a 'climbable' fence?
Horizontal rails, decorative elements that provide footholds, chain link with openings over 1.75 inches, and any feature within 5 feet of the pool that a child could use to climb over the barrier.
Compare other topics
See how Carson and Castaic compare on other ordinance categories.
Want to add a third city?
Use our full comparison tool to compare up to three cities.
Open Comparison Tool