Do You Need a Permit to Build a Deck in Utah? Here’s What to Know

By Wasatch Deck and Rail Supply

So you're ready to build a deck—awesome! Before you start sketching out designs or picking materials, there's one crucial question to answer: Do you need a deck permit in Utah? The answer depends on several factors, including the deck's size, height, and whether it's attached to your home.

Let's break it down so you can move forward with confidence.

Deck permit for Utah

When You Don’t Need a Permit

In many Utah municipalities, you can build a deck without a permit if it meets all of the following criteria:

• Detached from your home (not physically connected)

• Less than 200 square feet in area

• Less than 18 inches above the ground

• No roof or covering

For example, in the Greater Salt Lake Municipal Services District, decks under 200 sq. ft., less than 18 inches high, and detached from the dwelling typically don't require a permit. However, you still need to get zoning approval to ensure the deck complies with setback and land use regulations .

Small deck attached to shed. No permit required in Utah.

When You Do Need a Deck Permit in Utah

If your deck doesn't meet all the above conditions, you'll likely need a building permit. Common scenarios requiring a permit include:

• Attached to your home

• Over 200 square feet in size

• More than 30 inches above ground level

• Includes a roof or covering

• Serves as a required exit (like a front or back door)

For instance, in Herriman City, any deck over 30 inches high, attached to the home, or covered requires a permit and inspections .

Deck attached to the home over 200 sq feet needs a permit it Utah

Why Permits Matter

Obtaining a permit isn't just about following the rules—it's about ensuring safety and protecting your investment. Here's why:

• Safety Inspections: Permits require inspections that verify your deck is structurally sound and built to code.

• Avoiding Penalties: Building without a permit can lead to fines, legal issues, or even having to remove the deck.

• Resale Value: Unpermitted structures can complicate home sales and reduce property value.

• Insurance Coverage: Insurance may not cover damages related to unpermitted work.

The Permitting Process

If you determine that a permit is necessary, here's a general overview of the steps involved:

1. Prepare Your Plans: You'll need detailed drawings of your proposed deck, including dimensions, materials, and structural details.

2. Submit an Application: Apply through your local building department, providing the necessary plans and information.

3. Pay Fees: Permit fees vary by municipality and are often based on the project's value.

4. Schedule Inspections: Once approved, you'll need to schedule inspections at various stages—typically footing, framing, and final inspections.

For example, in Herriman City, the process includes submitting a site plan, construction plans, and undergoing multiple inspections.

Local Variations

Permit requirements can vary between cities and counties. Here's a brief overview:

• Salt Lake City: Permits are generally required for decks attached to the home or over 200 sq. ft. in size. Detached decks under 200 sq. ft. and less than 30 inches high may not require a permit, but it's best to confirm with the city .

• West Valley City: Decks less than 30 inches above ground typically don't require a permit, but zoning approval is still necessary .

• Highland City: Requires permits for all covered decks and uncovered decks larger than 120 sq. ft. or more than 30 inches above grade .

Always check with your local building department to confirm specific requirements.

Need Help Navigating Permits?

At Wasatch Deck and Rail Supply, we're here to help. Whether you're a DIY enthusiast or working with a contractor, we can guide you through the permitting process and ensure you have the right materials for a code-compliant, beautiful deck.

Contact us today to get started on your deck project with confidence.