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§ 02
When a permit is required
Permit triggers and exempt work for Austin
New construction, additions/remodels, accessory buildings, solar systems, septic systems, generators and ROW projects require a permit, including special flood hazard reconstruction
No exempt work list is provided online; call the department before starting work to verify permit requirements.【0†source】【0†source】【0†source】【0†source】【0†source】citeturn20view0
- Exempt No exempt work list is provided online; call the department before starting work to verify permit requirements.【0†source】【0†source】【0†source】【0†source】【0†source】citeturn20view0
Required documents
- When a permit is required: New construction, additions/remodels, accessory buildings, solar systems, septic systems, generators and ROW projects require a permit, including special flood hazard reconstruction
- Required documents: Complete the applicable packet and include sealed plans, contractor/engineer information, soil/septic references, site sketches and utility disconnect proof per the department’s application list
- Permit validity/expiration: Not listed publicly; contact the department
- Owner-builder rules if available: Not detailed online; call the staff line
- Contractor license requirements: Structural and solar work must be certified by Missouri registered engineers/architects, and the department verifies contractors via the submitted applications
- Building code adopted: County amendments to the 2006 International Codes apply to all towns serviced by Cass County.【0†source】【0†source】【0†source】【0†source】【0†source】citeturn20view0
- Building code
- County amendments to the 2006 International Codes apply to all towns serviced by Cass County.【0†source】【0†source】【0†source】【0†source】【0†source】citeturn20view0
- Permit validity
- Not listed publicly; contact the department
- Owner-builder
- Not detailed online; call the staff line
- Contractor requirements
- Structural and solar work must be certified by Missouri registered engineers/architects, and the department verifies contractors via the submitted applications
§ 03
Application process
Typical processing: Plan review is required before issuance; allow the department time before starting work.【0†source】【0†source】【0†source】【0†source】【0†source】citeturn20view0
- 01 Select the correct packet for your work and gather required plans/documentation
- 02 Deliver the completed packet to the Building Codes office (in person or via the listed email contacts) with seals and site details
- 03 Await plan review—the office notes that permits are not issued immediately and to allow time
- 04 Schedule inspections and receive the certificate of occupancy through the department staff once the plan is approved
Typical processing time: Plan review is required before issuance; allow the department time before starting work.【0†source】【0†source】【0†source】【0†source】【0†source】citeturn20view0
Source: Building Codes, Zoning & Environmental Health Department, Cass County ↗
§ 04
Fee schedule
Austin building permit fees
Fee type
Amount
01
Minimum permit fee
Not published online; consult the department
02
Plan check fee
Not posted publicly
03
Permit fee formula
Not stated; assume the county fee book covers valuation-based charges
04
Reinspection fee
Not published; contact the permit technician
Payments are handled directly through the county office when the fee is finalized
§ 05
Required inspections
Scheduling and sequence
How to schedule
- Call the Building Codes office at 816-380-8134 to request inspections; the contact info lists individual inspectors ()
- Inspection hours
- Office hours are Monday–Friday, 6:30 a.m.–3:00 p.m
Typical sequence: Plan review precedes foundation/rough/final inspections; certificate issuance follows passing inspections
§ 06
Frequently asked
Common questions about Austin permits
01 Do I need a building permit in Austin, MO? ▸
New construction, additions/remodels, accessory buildings, solar systems, septic systems, generators and ROW projects require a permit, including special flood hazard reconstruction
02 How much does a building permit cost in Austin, MO? ▸
Building permit fees in Austin, MO are set by the local building department and vary by project type and valuation. The minimum permit fee is Not published online; consult the department. Fees are calculated as: Not stated; assume the county fee book covers valuation-based charges. Plan check fee: Not posted publicly.
03 How do I apply for a building permit in Austin, MO? ▸
To apply for a building permit in Austin, MO, follow these steps: 1. Select the correct packet for your work and gather required plans/documentation 2. Deliver the completed packet to the Building Codes office (in person or via the listed email contacts) with seals and site details 3. Await plan review—the office notes that permits are not issued immediately and to allow time 4. Schedule inspections and receive the certificate of occupancy through the department staff once the plan is approved
04 How long does it take to get a building permit in Austin, MO? ▸
Building permit processing times in Austin, MO typically run Plan review is required before issuance; allow the department time before starting work.【0†source】【0†source】【0†source】【0†source】【0†source】citeturn20view0. Timelines can vary based on project complexity and current department workload.
05 What work is exempt from building permits in Austin, MO? ▸
Not all construction work requires a permit in Austin, MO. The following work is generally exempt: No exempt work list is provided online; call the department before starting work to verify permit requirements.【0†source】【0†source】【0†source】【0†source】【0†source】citeturn20view0. When in doubt, confirm with the local building department before starting work.
06 How do I schedule a building inspection in Austin, MO? ▸
Once your permit is issued and work reaches an inspection milestone, you can schedule a building inspection in Austin, MO via: Call the Building Codes office at 816-380-8134 to request inspections; the contact info lists individual inspectors.
last verified April 2026
source Building Codes, Zoning & Environmental Health Department, Cass County ↗
entry id permits/missouri/cass/austin
Educational reference. Permit rules and fees change — confirm current requirements directly with Building Codes, Zoning & Environmental Health Department, Cass County before applying. Jaspector is not legal advice.