Deck Permit requirements across Missouri
By Mario Bailey Last checked
- Always required
- 0
- of 2 jurisdictions
- Conditional
- 2
- depends on size or scope
- Not required
- 0
- exempt outright
Requirements and size thresholds for deck permits vary by locality. The table below compares what each Missouri county or city requires. Always confirm with the local office before starting.
Comparing states? See deck permit rules across every locality we cover.
The application steps and inspection sequence for deck permits come from the model code rather than from Missouri law, so they read the same wherever you build. We keep that walkthrough in one place: how a deck permit application and its inspections work, start to finish. What changes between Missouri jurisdictions is below: who requires a permit, what they charge, and which office you file with.
Swipe sideways to see thresholds and confidence.
| Locality | Permit required? | Typical threshold | Confidence |
|---|---|---|---|
| Kansas City | Conditional | height of a platform or deck above grade at any point, where it is also not located over any basement or story below | Confirmed on official page |
| St. Louis | Conditional | inches above adjacent grade for an uncovered wood deck or patio resting directly on the ground or a rock base with no permanent foundation | From an official source |
| No localities match your filter. | |||
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Before you sign, ask the contractor:
- Who pulls the permit, you or me, and is the permit fee included in the bid?
- Which inspections will this job need, and who meets the inspector on site?
- Is your contractor license active in this locality, and under which business name?