Retaining Wall Permit Requirements in Litchfield Park, AZ
ZIP 85340 carries the postal name Litchfield Park but the incorporated City of Litchfield Park is tiny (3.3 sq mi, ~6,847 pop), only about 20 percent of the ZIP's ~33,778 residents. The remainder is large unincorporated Maricopa County county islands (Planning & Development is the AHJ there) plus slivers of Goodyear and Buckeye, with the city's own FAQ confirming most 85340 addresses outside city limits get services from Maricopa County. This is a genuine multi-AHJ ZIP with no single dominant municipality, so the recommendation is to LEAVE IT UNMAPPED (accuracy over coverage); the best-guess primary AHJ recorded here is unincorporated Maricopa County. Both the City of Litchfield Park and Maricopa County have adopted the 2018 IRC.
By Joey, Founder · Last verified June 4, 2026 · How we research →
When you don’t need a Retaining Wall permit
AZ (ZIP 85340), a retaining wall 4 feet or less measured from the bottom of the footing to the top of the wall, with no surcharge, is generally exempt from a building permit under the 2018 IRC. A wall over 4 feet, or any wall supporting a surcharge (slope or load), requires a building permit and engineered design. Most 85340 addresses are unincorporated Maricopa County, where the Maricopa County Planning & Development Department is the authority; parcels inside the incorporated City of Litchfield Park city limits use the City of Litchfield Park instead, and small areas fall under Goodyear or Buckeye, so confirm which jurisdiction your parcel is in first. Provide drainage behind the wall.
Retaining Wall Permit Costs: Litchfield Park vs. Nearby
| City | Estimated Fee |
|---|---|
| Litchfield Park | N/A |
| Phoenix | $135 – $540 |
| Tucson | $150 – $600 |
| Mesa | $120 – $485 |
Fees shown are estimates based on local building code data. Actual fees may vary based on project scope and valuation. See all Litchfield Park permit costs →
Zoning Considerations
Retaining walls near property lines may require zoning setback review. Walls that significantly change the grade of a property may need additional zoning approval.
Estimated Project Timeline
Here's a typical timeline for a retaining wall project:
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Frequently Asked Questions
Contact the building department for current Retaining Wall permit fee information. Fees typically vary based on project scope and valuation.
It depends on the specifics of your project. Some smaller Retaining Wall projects may be exempt from permit requirements, while larger ones typically require a permit. Use our free lookup tool to check your specific situation.
Working without a required permit can result in fines, stop-work orders, being required to remove completed work, and complications when selling your home. It's always best to check first.
Contact the building department for current processing times. Timelines vary based on project complexity and whether plan review is required.
Learn More About Retaining Wall Permits
Read our complete guide covering permit requirements, costs, common exemptions, and the application process.
Read Retaining Wall Guide →