City Building Permits
Arnold, MO - 2026 Building Permit Guide
How to apply for a building permit in Arnold, Missouri. Permit authority, application steps, fees, and inspection requirements.
Permit Authority
City of Arnold permit authority for work inside Arnold city limits
- Department
- Building and Code Compliance, Community Development Department
- Address
- 2101 Jeffco Boulevard, Arnold, MO 63010
- Phone
- 636-282-2378
Online Permit Portal
Platform: myGov • Account required: Yes • Submission: In-person only
Additional resources:
Application Process
- Review Arnold permit requirements and confirm the project is inside city limits
- Submit the permit application through the myGov portal at least two weeks before the anticipated start date
- Upload plans and project details and pay the required fee at application and plan submittal
- Respond to staff comments during review
- Receive permit approval, complete inspections, and obtain final approval
Typical processing time: City objective is one to two business weeks, but it varies by season, complexity, and application completeness
Source: Building and Code Compliance, Community Development Department
General Requirements
Arnold requires construction permits for commercial and residential structures including buildings, fences, retaining walls, and signs
Required Documents
- When a permit is required: Arnold requires construction permits for commercial and residential structures including buildings, fences, retaining walls, and signs
- Required documents: Application, plans, and project details sufficient for review through myGov
- Permit validity/expiration: Not clearly posted on the reviewed permit page
- Owner-builder rules if available: Not clearly posted on the reviewed permit page
- Contractor license requirements: Only contractors licensed by the City may do work in Arnold; specialty licenses and city business licensing are required for electricians, plumbers, and drain layers
- Building code adopted: Arnold page states new codes have been adopted; confirm current adopted code edition directly through the city code and Building and Code Compliance office
- Permit validity
- Not clearly posted on the reviewed permit page
- Building code
- Arnold page states new codes have been adopted; confirm current adopted code edition directly through the city code and Building and Code Compliance office
- Owner-builder
- Not clearly posted on the reviewed permit page
- Contractor requirements
- Only contractors licensed by the City may do work in Arnold; specialty licenses and city business licensing are required for electricians, plumbers, and drain layers
Fees
- Minimum permit fee
- Not clearly posted on the reviewed public page
- Plan check fee
- Fee due at time of application and plan submittal; city page does not separately state the plan review line item
- Permit fee formula
- Based on cost of construction and number of disciplines in the permit
- Reinspection fee
- Not clearly posted on the reviewed permit page
- Payment note
- myGov portal used for permit requests and fee schedules
Fees change. Verify current amounts at the official fee schedule.
Work That Does NOT Require a Permit
Contact the Building and Code Compliance, Community Development Department to confirm whether your project requires a permit before starting work.
Inspections
How to Schedule
- Through city permit workflow after issuance; reviewed page does not post a separate hotline ()
- Inspection hours
- Not clearly posted on the reviewed permit page
Typical inspection sequence: Review, permit issuance, required inspections by discipline, then final approval
Additional Resources
- Building code: Arnold page states new codes have been adopted; confirm current adopted code edition directly through the city code and Building and Code Compliance office
- Zoning information: View zoning info
- arnoldmo.org
- License lookup guide: Missouri Contractor License Requirements
- Contract template: Missouri Homeowner-Contractor Agreement
- Missouri hub: Missouri Contractor License & Permit Hub
Information on this page was last verified: March 2026. Permit rules and fees change — confirm current requirements directly with the Building and Code Compliance, Community Development Department before applying.
Frequently Asked Questions
Arnold Building Permit FAQ
- Do I need a building permit in Arnold, MO?
- Arnold requires construction permits for commercial and residential structures including buildings, fences, retaining walls, and signs
- How much does a building permit cost in Arnold, MO?
- The minimum permit fee is Not clearly posted on the reviewed public page. Fees are calculated as: Based on cost of construction and number of disciplines in the permit. Plan check fee: Fee due at time of application and plan submittal; city page does not separately state the plan review line item.
- How do I apply for a building permit in Arnold, MO?
- 1. Review Arnold permit requirements and confirm the project is inside city limits 2. Submit the permit application through the myGov portal at least two weeks before the anticipated start date 3. Upload plans and project details and pay the required fee at application and plan submittal 4. Respond to staff comments during review 5. Receive permit approval, complete inspections, and obtain final approval
- How long does it take to get a building permit in Arnold, MO?
- Typical processing time is City objective is one to two business weeks, but it varies by season, complexity, and application completeness.
- What work is exempt from building permits in Arnold, MO?
- The following work is generally exempt: Shed over 200 square feet requires a permit; a shed over 120 square feet but 200 square feet or less does not require a permit but must meet setbacks; Retaining walls over 2 feet require a permit; City page otherwise directs applicants to ask staff rather than rely on a full public exemption list.
- How do I schedule a building inspection in Arnold, MO?
- Inspections can be scheduled via: Through city permit workflow after issuance; reviewed page does not post a separate hotline.
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