City Building Permits
Smithville, MO - 2026 Building Permit Guide
How to apply for a building permit in Smithville, Missouri. Permit authority, application steps, fees, and inspection requirements.
Permit Authority
Covers the 4th-class city of Smithville, including floodplain overlays on the Platte River and the Northland suburbs. citeturn38view0
- Department
- Smithville Community Development/Building, Zoning & Floodplain Coordinator. citeturn38view0
- Address
- 107 W. Main Street, Smithville, MO 64089. citeturn36view3
- Phone
- 816-532-3897 (Building/Zoning office). citeturn38view0
Online Permit Portal
Platform: Smithville’s in-house portal and submission packet (no third-party portal indicated). citeturn38view0 • Account required: No • Submission: In-person only
Additional resources:
Application Process
- Request the appropriate permit packet using the online forms link, fill out the owner/contractor information, and include a cost estimate. citeturn38view0
- Attach plans, site dimensions, and supporting documentation (e.g., deed or closing statement for owner-builder submittals). citeturn36view3
- Staff reviews the submission, relays comments via email, and returns the application with the permit number when approved. citeturn36view3
- Pay fees and schedule inspections through email or phone. citeturn38view0
Typical processing time: Standard review times are listed in the building guidelines (around two weeks for typical residential projects). citeturn36view4
Source: Smithville Community Development/Building, Zoning & Floodplain Coordinator. citeturn38view0
General Requirements
New construction, additions, decks, pools, fences, roof repairs, and trade work; mechanical/plumbing permits require separate applications. citeturn36view3
Required Documents
- When a permit is required: New construction, additions, decks, pools, fences, roof repairs, and trade work; mechanical/plumbing permits require separate applications. citeturn36view3
- Required documents: Site plan, floor plan, contractors’ licenses/certificates, and owner-builder paperwork if applicable. citeturn36view3
- Permit validity/expiration: Not specified online; call the building office for extension details. citeturn38view0
- Owner-builder rules if available: Homeowners may apply after submitting proof of ownership and agreeing to inspections. citeturn36view3
- Contractor license requirements: Contractors must provide business licenses and insurance before permits are issued. citeturn36view3
- Building code adopted: 2018 International Building and Residential Codes (per the building guidelines packet). citeturn36view4
- Permit validity
- Not specified online; call the building office for extension details. citeturn38view0
- Building code
- 2018 International Building and Residential Codes (per the building guidelines packet). citeturn36view4
- Owner-builder
- Homeowners may apply after submitting proof of ownership and agreeing to inspections. citeturn36view3
- Contractor requirements
- Contractors must provide business licenses and insurance before permits are issued. citeturn36view3
Fees
- Minimum permit fee
- Listed in the packet (smallest project fees start around ). citeturn36view3
- Plan check fee
- Included in the permit fee; plan review considerations are outlined in the packet. citeturn36view3
- Permit fee formula
- Valuation-based with separate charges for trade permits shown in the packet. citeturn36view3
- Reinspection fee
- Assessed for unready sites or deviation from approved plans (per the guidelines). citeturn36view4
- Payment note
- Payments accepted in person or mailed to City Hall; receipts are provided on request. citeturn38view0
Fees change. Verify current amounts at the official fee schedule.
Work That Does NOT Require a Permit
Contact the Smithville Community Development/Building, Zoning & Floodplain Coordinator. citeturn38view0 to confirm whether your project requires a permit before starting work.
Inspections
How to Schedule
- Call 816-532-3897 or email the building division after the permit is issued. citeturn38view0 ()
- Inspection hours
- Inspections arranged around City Hall business hours; inspector availability is confirmed by office staff. citeturn38view0
Typical inspection sequence: Footing, framing, trade-specific (electrical/mechanical/plumbing), and final. citeturn36view3
Additional Resources
- Building code: 2018 International Building and Residential Codes (per the building guidelines packet). citeturn36view4
- Zoning information: View zoning info
- (maps and overlay information). citeturn38view0
- 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 Smithville Community Development/Building, Zoning & Floodplain Coordinator. citeturn38view0 before applying.
Frequently Asked Questions
Smithville Building Permit FAQ
- Do I need a building permit in Smithville, MO?
- New construction, additions, decks, pools, fences, roof repairs, and trade work; mechanical/plumbing permits require separate applications. citeturn36view3
- How much does a building permit cost in Smithville, MO?
- The minimum permit fee is Listed in the packet (smallest project fees start around ). citeturn36view3. Fees are calculated as: Valuation-based with separate charges for trade permits shown in the packet. citeturn36view3. Plan check fee: Included in the permit fee; plan review considerations are outlined in the packet. citeturn36view3.
- How do I apply for a building permit in Smithville, MO?
- 1. Request the appropriate permit packet using the online forms link, fill out the owner/contractor information, and include a cost estimate. citeturn38view0 2. Attach plans, site dimensions, and supporting documentation (e.g., deed or closing statement for owner-builder submittals). citeturn36view3 3. Staff reviews the submission, relays comments via email, and returns the application with the permit number when approved. citeturn36view3 4. Pay fees and schedule inspections through email or phone. citeturn38view0
- How long does it take to get a building permit in Smithville, MO?
- Typical processing time is Standard review times are listed in the building guidelines (around two weeks for typical residential projects). citeturn36view4.
- What work is exempt from building permits in Smithville, MO?
- The following work is generally exempt: Minor finish work, paint, and small decks/fencing that fall below the thresholds described in the owner’s guide. citeturn36view4.
- How do I schedule a building inspection in Smithville, MO?
- Inspections can be scheduled via: Call 816-532-3897 or email the building division after the permit is issued. citeturn38view0.
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