Height Limits: Ontario vs Rancho Cucamonga
How do height limits rules compare between Ontario, CA and Rancho Cucamonga, CA?
Ontario and Rancho Cucamonga have similar restriction levels.
Ontario, CA
San Bernardino County
Ontario limits residential fence heights under the Development Code. Typical maximums are 6 feet rear/side, 3 feet front, and 42 inches in sight-distance triangles at corners. Taller fences need a variance.
View full Ontario rules →Rancho Cucamonga, CA
San Bernardino County
Rancho Cucamonga Development Code caps residential fences at 3 feet in front yards and 6 feet in rear and side yards. Corner lots and VHFHSZ foothill parcels have additional visibility and material rules.
View full Rancho Cucamonga rules →Key Facts Comparison
| Fact | Ontario | Rancho Cucamonga |
|---|---|---|
| Rear and Side | 6 feet maximum | - |
| Front Yard | 3 feet solid or 4 feet with openwork | 3 ft maximum |
| Corner Sight | 42 inches in triangle | 3 ft in 25-ft triangle |
| Buffer Walls | Up to 8 feet industrial edge | - |
| Deviation | Variance or adjustment required | - |
| Side/Rear | - | 6 ft maximum |
| Variance | - | Up to 8 ft with Minor Exception |
| VHFHSZ | - | Noncombustible within 5 ft of home |
Highlighted rows indicate differences between cities.
Ontario FAQ
Can I build a 6-foot front fence in Ontario?
No. Front-yard fences are generally limited to 3 feet solid or 4 feet with at least half open decorative metal. A 6-foot front fence requires a variance.
Does a corner lot have extra rules?
Yes. Fences within the 42-inch sight-distance triangle at corners and driveways cannot block driver visibility.
Rancho Cucamonga FAQ
Can I build a 7-foot privacy fence in my backyard?
Not as of right. The rear yard fence limit is 6 feet. You can apply for a Minor Exception through Planning to go up to 8 feet if neighbors do not object.
What about a wood fence in Etiwanda?
Residential wood fencing is allowed generally, but if your home is in the Very High Fire Hazard Severity Zone foothill area, the 5 feet closest to the house must be noncombustible.
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