Do I Need a Permit for a Deck, Patio, Shed, or Home Addition in Utah? (2026 Guide)

One of the most common questions homeowners ask before starting an outdoor project is: "Do I actually need a permit for this?"

It's a fair question — and the honest answer is: it depends on what you're building, how big it is, and which Utah county or city you're in.

Getting this wrong isn't just a paperwork headache. Building without a required permit can result in stop-work orders, fines, forced teardowns, and serious problems when you go to sell your home. This guide breaks down exactly what requires a permit in Utah in 2026 so you can move forward with confidence.

Permits aren't bureaucratic red tape for its own sake. They exist to protect you.

When a permit is pulled and inspections are completed, a licensed inspector verifies that your structure was built to code — meaning it's safe, structurally sound, and won't create liability issues down the road. Unpermitted work can:

• Void your homeowner's insurance if a claim involves the unpermitted structure
• Delay or kill a home sale when a buyer's inspector flags it
• Require demolition if the city or county discovers it
• Result in fines ranging from hundreds to thousands of dollars

The short version: permits protect your investment. Always pull one when required.

In Utah, most decks require a building permit — but there are exceptions based on size and height.

• Any deck attached to the house
• Any deck 30 inches or more above grade (ground level)
• Decks over 200 square feet in most jurisdictions
• Decks with structural elements like ledger boards bolted to the home's framing

• Freestanding ground-level platforms under 200 sq ft and less than 30 inches high
• Simple wood platforms with no attachment to the home structure

• Salt Lake County / Salt Lake City: Permit required for attached decks and any deck over 30" above grade. Structural plans typically required.
• Utah County (Provo, Orem, Lehi): Similar thresholds — attached decks and elevated decks require permits. Some cities have stricter setback requirements.
• Washington County (St. George area): Permit required for most decks. Hot climate means additional considerations for material choices.
• Summit County / Park City: Stricter requirements due to wildfire risk zones and HOA overlays. Always verify locally.

Bottom line on decks: If it's attached to your house or elevated more than 30 inches, pull a permit. It's not worth the risk.

Patios are generally the most permit-friendly outdoor project — but there are still situations where you'll need approval.

• Poured concrete patio at ground level
• Paver or flagstone patio at grade
• Stamped concrete at ground level

These are considered flatwork and don't typically require structural review in most Utah jurisdictions.

• Covered patios or pergolas attached to the home (this triggers a permit in most cities)
• Raised patios built on a retaining wall or elevated platform
• Patios with electrical (outlets, lighting circuits, fans)
• Patios with gas lines (fire pits, outdoor kitchens)

The moment you add a roof — even a pergola with open slats — to a patio attached to your home, most Utah jurisdictions treat it as an addition and require a permit. This catches a lot of homeowners off guard.

Shed permit requirements in Utah are almost entirely driven by square footage.

• Under 120–200 sq ft: Often exempt from a building permit in many Utah jurisdictions
• Over 200 sq ft: Permit almost always required
• Any shed with electrical: Permit required regardless of size
• Any shed with plumbing: Permit required regardless of size

• Setbacks: Even permit-exempt sheds must comply with property line setback requirements. In most Utah cities, sheds must be at least 3–5 feet from property lines and 6 feet from the main dwelling.
• HOA Rules: Your HOA may have stricter rules than the city — always check both.
• Zoning: Agricultural zones often have more flexibility; residential zones are stricter.

• Provo: Sheds under 200 sq ft are generally exempt, but must meet setback requirements
• Sandy / Draper: Similar 200 sq ft threshold; electrical always requires permit
• St. George: Check with Washington County — thresholds vary by incorporated vs. unincorporated areas

Pro tip: Even if your shed doesn't require a permit, document it. Take photos, note the dimensions, and keep records. This protects you at resale.

There is no gray area here. Any home addition in Utah requires a building permit. Full stop.

This includes:

• Adding a bedroom, bathroom, or living space
• Enclosing a garage or carport
• Converting an attic or basement into livable space
• Sunrooms and four-season rooms
• Second-story additions
• Attached ADUs (Accessory Dwelling Units)

1. Architectural/Structural Plans Most additions require stamped drawings from a licensed architect or structural engineer. Your contractor can often coordinate this.

2. Plan Review The city or county building department reviews your plans for code compliance. This can take 2–6 weeks depending on jurisdiction and complexity.

3. Permit Issuance Once approved, the permit is issued and work can begin.

4. Inspections Multiple inspections are required at key stages: foundation, framing, rough electrical/plumbing, insulation, and final. Your contractor schedules these.

5. Certificate of Occupancy After the final inspection passes, a CO is issued confirming the space is legally habitable.

An unpermitted addition is a red flag in any real estate transaction. Buyers' lenders often won't finance a home with unpermitted square footage. Title companies flag it. And if the city discovers it, you may be required to either demolish it or retroactively permit it — which is often more expensive and complicated than doing it right the first time.

Because permit thresholds vary by jurisdiction, always verify with your local building department before starting any project. Here's how:

1. Visit your city or county's building department website — most have permit requirement summaries online
2. Call the building department directly — they're generally helpful and can answer basic questions
3. Ask your contractor — a licensed general contractor in Utah will know the local requirements and can pull permits on your behalf

• Salt Lake City Building Services: slc.gov/building-services
• Utah County Building: utahcounty.gov/dept/bldgdvlp
• Washington County Building: washco.utah.gov/building-department
• Davis County Building: daviscountyutah.gov/building

This is worth spelling out clearly because the consequences are real:

During construction: A neighbor complaint or routine inspection can trigger a stop-work order. All work halts until the permit is obtained — and you may have to open up completed work for inspection.

At resale: A home inspector or appraiser will flag unpermitted structures. The buyer may demand you either demolish the structure, retroactively permit it, or reduce the sale price to account for the liability.

With your insurance: If an unpermitted deck collapses or an unpermitted addition has a fire, your insurer may deny the claim on the grounds that the structure wasn't code-compliant.

With the city: Fines vary widely — from a few hundred dollars to several thousand — plus the cost of bringing the work into compliance.

One of the biggest advantages of working with a licensed general contractor is that permit management is part of the service. A reputable contractor will:

• Know exactly what requires a permit in your jurisdiction
• Pull all required permits before work begins
• Schedule and coordinate all required inspections
• Ensure the final work passes inspection and is fully documented

At Chris Anderson Construction, we handle the entire permit process for every project we build — from custom homes and home additions to decks, covered patios, and concrete work. You never have to navigate the building department on your own.

Always verify with your local building department — thresholds vary by city and county.

When in doubt, pull the permit. The cost of a permit is a fraction of the cost of dealing with unpermitted work later. And if you're working with a licensed contractor, they should be handling this for you automatically.

If you're planning a deck, patio, shed, home addition, or any other construction project in Utah and want to make sure it's done right — permitted, inspected, and built to last — give us a call. We've been building in Utah for over 25 years and we know the local requirements inside and out.

Ready to start your project the right way? Contact Chris Anderson Construction for a free estimate.