Permit Required? Required
Typical Fee Range $100–$350 Based on project value plus a plan review fee.
Fee Method Valuation-based
Apply Online Apply at City Planning and Development - Permits Division →

What's Required in Kansas City

  • Permit required for any deck over 30 inches above grade.
  • Structural plans showing footings and joist spacing.
  • Decks must meet standard rear and side setbacks for your zone.
  • Safety railings (36" min) required for all raised decks.
  • Footings must reach a minimum of 36 inches deep (frost line).
  • Ledger attachments must be flashed and bolted.

When a Deck Needs a Permit in Kansas City

Whether a deck needs a building permit in Kansas City usually comes down to how high and how big it is. Low, ground-level platforms are often exempt, while raised decks need a permit — in Kansas City, the line is a deck floor more than 30 inches above grade (where guardrails and footings come into play). Attached decks almost always require a permit because they tie into the house’s structure, and even a freestanding deck usually needs one once it passes the size or height cutoff. Check the requirements above before you build, and note that zoning setbacks from property lines apply regardless.

Do You Need a Permit to Repair or Replace a Deck in Kansas City

It depends on how much you’re changing. Swapping worn decking boards or railing on the same layout is usually treated as maintenance and often doesn’t require a permit in Kansas City. But replacing the structural framing (joists, beams, posts, or footings), rebuilding the deck, enlarging it, or changing its height generally does — at that point it’s regulated like new construction. When in doubt, describe the scope to the City Planning and Development - Permits Division before starting; the requirements above outline what Kansas City expects.

How to Get a Deck Permit in Kansas City

1

Step 1: Design Plans

Create a site plan and structural drawings for the deck.

2

Step 2: Submit Portal

Upload documents to the Compass KC system.

3

Step 3: Plan Review

Staff check for structural safety and zoning compliance.

4

Step 4: Permit Issuance

Pay valuation-based fees to activate the permit.

5

Step 5: Inspections

Requires footing, framing, and final structural inspections.

Frequently Asked Questions

If under 30 inches high and detached, it is usually exempt.
Kansas City requires a 36-inch frost depth for deck posts.
Yes, if you own and occupy the home.
Usually not — swapping decking boards or railing on the same structure is generally considered maintenance in Kansas City. Replacing the framing (joists, beams, footings), rebuilding, or enlarging the deck typically does require a permit. Check the scope with the City Planning and Development - Permits Division.