Do You Need a Permit for a Deck in Cedar Park, TX? (2026 Guide)
Short answer
In Cedar Park, a deck needs a city building permit if it is 30 inches or more above the ground, exceeds 200 square feet, is attached to the house, or serves a required exit door. The city also requires permits for multi-level decks, arbors, and any roof built over an existing slab or deck. Applications go through the City of Cedar Park's MGO Connect portal, not Williamson County.
Cedar Park is one of the few cities in our area that spells out its deck permit triggers in plain language. The city's Deck and Patio Cover Guideline lists exactly which decks and covers need a permit, what to submit, and which inspections to expect. Here is what that official guidance says, how it applies to patio covers and pergolas, and what to confirm with the city before you build.
Key takeaways
- Permit triggers: 30 inches or more above ground, over 200 square feet, attached to the house, or serving a required exit door.
- Multi-level decks, arbors, and covering an existing slab or deck always need a permit.
- Cedar Park builds to the 2021 International Code series with local amendments, effective June 1, 2022.
- Apply through MGO Connect with a site plan showing easements, setbacks, and property lines.
- Inspections: layout, foundation before pour, framing if walls or ceilings are enclosed, and final.
- Contractors must be registered with the City of Cedar Park before they can pull permits.
Do you need a permit for a deck in Cedar Park, TX?
You need a permit if your deck meets any one of these conditions from the City of Cedar Park's Deck and Patio Cover Guideline: it is 30 inches or more above the ground, it exceeds 200 square feet in area, it is attached to a dwelling, or it serves a required exit door. Any one of those is enough.
The same guideline also lists multi-level decks, existing slabs or wood decks that are being covered with a structure, and arbors as projects that need a permit. So a freestanding, ground-level deck under 200 square feet that does not serve an exit door may not need a building permit, but most real backyard decks attach to the house or run larger than 200 square feet, and those do.
Do patio covers and pergolas need a permit in Cedar Park?
A patio cover built over an existing slab or deck needs a permit under the city's guideline, and it uses the same Deck and Patio Cover submittal. If your patio cover is attached to the house, expect the reviewer to look closely at how it ties into the existing roof and wall framing.
The guideline names arbors specifically. It does not use the word pergola, and Cedar Park has a separate guideline and checklist for accessory structures. If you are planning a freestanding pergola, ask the Building Inspection Division which submittal applies to your design before you prepare drawings.
Which building code does Cedar Park use?
Effective June 1, 2022, the City of Cedar Park adopted the 2021 International Code series with local amendments, which includes the International Residential Code used for decks and patio covers, along with the 2020 National Electrical Code for wiring.
Local amendments matter. Before drawings are final, have your designer or builder check the city's amendments in Chapter 3 of the Cedar Park Code of Ordinances.
What do you submit for a Cedar Park deck or patio cover permit?
Cedar Park's Deck and Patio Cover Permit Submittal Checklist asks for owner, applicant, and contractor contact information and a project valuation, plus these plans: a site plan and details showing all existing public utility easements, setbacks, property lines, and the location of the deck or patio cover; a foundation plan with footing and anchoring details; deck or roof construction details including elevations; window details for any windows immediately adjacent to stairs and landings; and electrical and plumbing details if applicable. A Permission to Enter form is also required.
The guideline says drawings do not need to be to scale, but measurements must be accurate. The checklist says plans in pencil or plans that are illegible or incomplete will not be accepted, and that additional information may be required for special situations such as a flood zone.
How do you apply, and does your contractor need to register?
Applications, payments, permit status, and inspection scheduling all run through the MGO Connect customer portal (My Government Online). The city publishes guides for creating an account and submitting a permit.
The city also says all contractors must register with the City of Cedar Park, and registration is free through MGO Connect. If you hire someone to build your deck, ask whether they are registered with the city before you sign.
What inspections does a Cedar Park deck need?
The Deck and Patio Cover Guideline lists four inspections: layout, foundation before the pour, framing if any walls or ceilings are being enclosed (including electrical and plumbing if applicable), and final. The Permission to Enter form must be visible to the inspector if the homeowner will not be home.
Cedar Park's residential inspection guide sets 4:00 p.m. as the cutoff for that day's inspection schedule and notes that inspections are not guaranteed the same day and may roll to the next business day.
How long does a Cedar Park deck permit take?
We could not find a published plan review time for deck or patio cover permits on the City of Cedar Park's website, so we are not going to quote one as fact. Review time depends on the city's current workload and on whether your first submittal is complete.
When you apply, ask the Building Inspection Division two questions: what is the current review time for a residential deck or patio cover, and what are the most common reasons these submittals get sent back? The city publishes common non-compliance lists for exactly this reason, and a complete first submittal is the fastest route to a permit.
What about setbacks, easements, and your HOA?
Your site plan has to show public utility easements, setbacks, and property lines, which tells you what the reviewer will check. Easements along rear and side lot lines are common in Cedar Park subdivisions, and structures generally cannot sit in them. Setbacks depend on your zoning district and plat, so ask the city's Planning staff for the exact numbers on your lot if they are not on your survey.
HOA approval is a separate step. Many Cedar Park neighborhoods have an HOA with architectural review, and the HOA can require changes to work built without its approval even when the city permit is valid. Get the HOA's current guidelines and submit before construction starts.
How All Seasons handles Cedar Park permits
All Seasons Decks & Gazebos has been building decks and outdoor structures in Central Texas since 1984, with more than 5,000 projects completed from our Liberty Hill headquarters. On Cedar Park projects we prepare the site plan and structural details, submit through MGO Connect, schedule inspections, and handle the HOA submission. You get a free on-site estimate and a fixed-price quote with permitting included.
To start a Cedar Park deck or patio cover, call (512) 812-8168 or request a quote online.