Do you need a permit for deck building?
Yes, building a new deck almost always requires a permit. Even replacing an existing deck may require one depending on size and your local codes.
$75 - $1,000
Typical permit cost
1 - 3 weeks
Approval timeline
6 steps
Permit process
When a permit is required
- Building a new deck of any size attached to the house
- Building a freestanding deck over 200 square feet (varies by jurisdiction)
- Any deck higher than 30 inches above grade
- Adding a roof or cover structure to an existing deck
- Replacing an existing deck with a different footprint or structure
- Installing electrical outlets or lighting on the deck
When you might not need one
- Building a small ground-level platform under 200 sq ft (check local rules)
- Replacing deck boards on an existing, permitted structure without changing the frame
- Staining or sealing an existing deck
- Adding freestanding furniture or a portable fire pit
How to get a deck building permit
Follow these steps to apply for and obtain your permit.
Check your local zoning requirements for setbacks, height limits, and lot coverage
Draw or commission a deck plan showing dimensions, materials, footings, and railings
Submit the application with your plans and a site survey showing the deck location
Pay the permit fee and await plan review
Once approved, begin construction and schedule inspections (footings, framing, final)
Pass final inspection and receive the certificate of completion
How much does a deck building permit cost?
$75 - $1,000
Typical range across US municipalities
Deck permits are often based on the project's estimated value or square footage. Most homeowners pay $100-$500 for a standard deck permit.
What happens if you skip the permit?
Skipping a required permit can carry real financial and legal consequences.
Fines and penalties from your local building department
Order to remove or tear down the unpermitted deck
Failure to meet setback requirements may require costly relocation
Problems selling your home: buyers and lenders flag unpermitted structures
Liability if the deck collapses or injures someone
DIY or hire a pro?
Doing it yourself
- Simple ground-level decks are a common DIY project
- If you have carpentry experience, you can save thousands on labor
- You are still responsible for pulling the permit and meeting code
Hiring a professional
- Elevated or multi-level decks require structural engineering knowledge
- Professionals know local code requirements and pass inspections efficiently
- Licensed contractors typically include permit handling in their scope
- Proper footings and connections to the house are critical for safety
Our recommendation
A small, ground-level deck is a realistic DIY project if you pull the permit and follow code. For elevated decks, multi-level builds, or anything attached to the house, hire a licensed contractor for safety and code compliance.
Frequently asked questions
Do I need a permit to build a deck?
Yes, in most jurisdictions you need a permit to build a deck, especially if it is attached to the house or more than 30 inches above grade. Some areas exempt small, ground-level, freestanding platforms under 200 square feet, but you should always check with your local building department.
How much does a deck building permit cost?
Deck permits typically cost between $75 and $1,000, with most homeowners paying $100-$500. The fee is usually based on the estimated project value or the deck's square footage. Your local building department sets the specific fee schedule.
Can I build a deck without a permit?
Some jurisdictions allow small, freestanding, ground-level platforms without a permit, but most decks require one. Building without a required permit can result in fines, an order to remove the deck, complications when selling, and personal liability if someone is injured.
What inspections are required for a new deck?
Typical deck inspections include a footing inspection (before pouring concrete), a framing inspection (after the structure is built but before decking is installed), and a final inspection. The number of inspections varies by municipality and the complexity of the project.
Find licensed contractors who handle permits
Skip the permit headache. Licensed contractors in your area pull permits, schedule inspections, and keep the job up to code.