Retaining Walls: Fontana vs Victorville
How do retaining walls rules compare between Fontana, CA and Victorville, CA?
Fontana and Victorville have similar restriction levels.
Fontana, CA
San Bernardino County
Retaining walls in Fontana require a building permit once they retain more than 4 feet of soil measured from the bottom of the footing, or at any height if they support a surcharge. Structural plans, drainage design, and geotechnical review are often required.
View full Fontana rules →Victorville, CA
San Bernardino County
Retaining walls over 4 feet measured from the bottom of the footing require a building permit with engineered plans in Victorville. Lower walls need no permit but must meet setback and drainage rules.
View full Victorville rules →Key Facts Comparison
| Fact | Fontana | Victorville |
|---|---|---|
| Permit Threshold | Retains over 4 ft or with surcharge | Over 4 ft or surcharge |
| Plans | Stamped structural calcs | - |
| Geotech | Often required over 4 ft | - |
| Drainage | Weep holes or French drain required | Weep holes and backfill |
| Combined Height | Counts toward fence height | Wall plus fence counts |
| Measure | - | Bottom of footing to top |
| Engineer | - | CA licensed plans required |
Highlighted rows indicate differences between cities.
Fontana FAQ
Do I need a permit for a 3-foot rockery?
If it retains 3 feet of soil with no surcharge, likely no structural permit, but still follow setback and drainage rules.
My wall failed after rain. What now?
Document the failure and contact Building and Safety. Repair plans may need engineering review, especially if there is slope above.
Victorville FAQ
Do I need a permit for a 3-foot retaining wall?
Not if it is under 4 feet and has no surcharge. Anything over 4 feet or supporting a driveway or slope requires engineered permit plans.
Does a fence on a wall count toward height?
Yes. The combined height of the retaining wall plus the fence on top is used to determine Development Code fence-height compliance.
Compare other topics
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