← McKinney permit guide
Deck Permit Requirements in McKinney, TX
Based on City of McKinney published sources. Confirm with Building Inspections before you build.
Do you need a permit?
Yes.
What to know
- Decks require a Residential Alteration permit as part of property improvements [1](https://www.mckinneytexas.org/3350/Home-Repairs-Permit-Information).
- Permits must comply with the most current adopted building codes [4](https://www.mckinneytexas.org/DocumentCenter/View/376/Residential-Alt-Addition-Packet).
- Engineered framing plans may be required depending on the project scope [4](https://www.mckinneytexas.org/DocumentCenter/View/376/Residential-Alt-Addition-Packet).
Typical documents
- Residential Alteration permit application
- Site plan showing location and dimensions
- Framing plan including post and header sizes
Who can apply & how
- The Building Inspections department oversees residential project permitting and code enforcement.
- Applications are submitted online through the Citizen Self-Service (CSS) portal.
- The city adopted new 2024 International Codes effective October 1, 2025.
Practical tips
- Check with the city to see if your project requires an engineered plan.
- Ensure the deck design includes all required connection and flashing details.
Contact & sources
Building Inspections · 401 E. Virginia St, McKinney, TX 75069 · 469-617-4800 · contact-inspections2@mckinneytexas.org
- Home Repairs & Permit Information - City of McKinney →
- Residential Addition / Alteration Guide - City of McKinney →
Only applies inside McKinney city limits. Neighboring cities and unincorporated Collin County have their own rules.
