Retaining Walls: Gilbert vs Mesa
How do retaining walls rules compare between Gilbert, AZ and Mesa, AZ?
Gilbert and Mesa have similar restriction levels.
Gilbert, AZ
Maricopa County
Gilbert requires building permits for retaining walls over 4 feet high. Engineered plans are needed for taller walls, and combined fence-retaining wall heights are regulated by the Land Development Code.
View full Gilbert rules →Mesa, AZ
Maricopa County
Mesa requires building permits for retaining walls over 4 feet in height including the surcharge. Retaining walls combined with fences on top have cumulative height calculations under the building code.
View full Mesa rules →Key Facts Comparison
| Fact | Gilbert | Mesa |
|---|---|---|
| Permit Trigger | Over 4 feet high | Over 4 feet high |
| Engineering | Required for permits | - |
| Fence Combo | Combined height regulated | Cumulative height applies |
| Review By | Development Services | - |
| Engineering Required | - | For walls over 4 feet |
| Code Reference | - | Title 4, Building Regulations |
Highlighted rows indicate differences between cities.
Gilbert FAQ
Do I need a permit for a retaining wall in Gilbert?
Yes, retaining walls over 4 feet require a building permit with engineered plans. Contact Gilbert Development Services at 480-503-6700.
Can I put a fence on a retaining wall in Gilbert?
Yes, but the combined height is regulated by the Land Development Code. Check with Development Services for maximum allowed heights.
Mesa FAQ
Do I need a permit for a retaining wall in Mesa?
Yes, if the retaining wall exceeds 4 feet in height including surcharge. Engineered plans are required for the permit application.
Can I put a fence on top of a retaining wall in Mesa?
Yes, but the combined height of the retaining wall and fence is regulated. Check with Mesa Development Services for the maximum allowed height in your zoning district.
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