Retaining Wall Permit Requirements in Aurora, CO
Uses 2021 I-Codes with local amendments (Aurora Municipal Code Ch. 22). High altitude (5,471 ft), HVAC derating required. Spans Arapahoe, Adams, and Douglas counties. Aurora4Biz portal for permits. Flat-rate permits available for simple jobs. Email: permitcounter@auroragov.org
By Joey, Founder · Last verified March 29, 2026 · How we research →
When you don’t need a Retaining Wall permit in Aurora
Retaining walls under 4 feet do not require a permit.
When you need a Retaining Wall permit in Aurora
Retaining walls 4+ feet require a permit.
Retaining walls with surcharge require a permit.
What Makes Aurora Different
Here's how Aurora's retaining wall rules stack up against the standard IRC baseline that most of the country follows.
Stricter Than the IRC
Aurora drops the height feet threshold to 3 feet. The IRC allows up to 4 feet before requiring a permit.
Retaining walls 4+ feet require a permit in Aurora, CO.
Retaining walls with surcharge require a permit in Aurora, CO.
Retaining Wall Permit Costs: Aurora vs. Nearby
Aurora's fees are right in line with the Colorado average, $135 – $540 versus $115 – $485 statewide.
| City | Estimated Fee |
|---|---|
| Aurora | $135 – $540 |
| Denver | $150 – $600 |
| Colorado Springs | $150 – $600 |
| Fort Collins | $150 – $600 |
Fees shown are estimates based on local building code data. Actual fees may vary based on project scope and valuation. See all Aurora permit costs →
Zoning & HOA 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.
If you live in an HOA community: some HOAs restrict retaining wall materials and appearance. Visible retaining walls in front or side yards may need architectural review approval for material and design.
Estimated Project Timeline in Aurora
Here's a typical timeline for a retaining wall project in Aurora, CO:
Timeline is based on Aurora's typical about 3 weeks permit processing time. Actual timelines vary by project complexity, completeness of application, and current department workload.
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Frequently Asked Questions
Estimated permit fees for Retaining Wall projects in Aurora, CO range from $135 – $540. Fees 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 in Aurora 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.
Typical approval time for Retaining Wall permits in Aurora is about 3 weeks. More complex projects may take longer if plan review is required.
If you live in an HOA community, you may need architectural review approval in addition to a building permit. HOA rules and city building codes are separate, you may need to satisfy both. Review your CC&Rs and submit to your HOA's architectural review committee before starting work.
Learn More About Retaining Wall Permits
Read our complete guide covering permit requirements, costs, common exemptions, and the application process.
Read Retaining Wall Guide →