Permits and Regulations for Deck Construction in Tacoma

Planning to build a deck in Tacoma, WA? Before you grab your tools or hire a contractor, it’s important to understand the permits and building regulations that apply to your project. Whether you’re building a small platform deck or a large multi-level structure, following Tacoma’s building codes ensures your deck is safe, legal, and built to last.

Here’s everything you need to know about deck permits and regulations in the City of Tacoma.

1. Do You Need a Permit to Build a Deck in Tacoma?

In most cases, yes, you will need a permit to build a deck in Tacoma. The City of Tacoma requires a building permit for any deck that:

• Is more than 30 inches above grade
• Is attached to the home
• Has guardrails, stairs, or roof coverings
• Impacts existing structures or utilities
• Will be used as a habitable or functional outdoor space

If your deck is low to the ground (less than 30 inches high), not attached to a structure, and doesn’t include utilities or cover, you may not need a permit—but it’s always best to double-check with the Tacoma Planning and Development Services Department.

2. Why Deck Permits Matter

Permits aren’t just red tape—they protect you as a homeowner. By following the permitting process, you ensure that:

• Your deck meets local safety and structural codes
• The project complies with zoning laws and property boundaries
• You avoid fines or penalties for unpermitted construction
• Your deck won’t cause issues if you sell your home in the future
• Your project is approved for insurance coverage

Unpermitted decks can delay home sales, require expensive retrofitting, or even lead to legal action from the city.

3. How to Apply for a Deck Permit in Tacoma

To apply for a deck permit, you’ll need to:

1. Submit an application through Tacoma’s online permit portal (ACA).
2. Provide detailed plans, including dimensions, structural supports, materials, and elevations.
3. Include a site plan showing the deck’s location in relation to your house, lot lines, and other structures.
4. Wait for approval from the city’s building and planning department.
5. Schedule inspections during and after construction to ensure code compliance.

4. Key Building Code Requirements

When designing your deck, keep in mind these common code requirements in Tacoma:

• Footings and Posts: Must meet frost-depth requirements (usually 12-18 inches minimum).
• Guardrails: Required if the deck is 30 inches or more above grade. Rails must be at least 36 inches high.
• Stairs: Must have uniform rise and run, with handrails if more than 3 risers.
• Ledger Boards: If attaching the deck to the house, the connection must be properly flashed and anchored.
• Load Capacity: Your deck must support a minimum 40 pounds per square foot (live load), plus additional requirements for snow or hot tubs.

Always check with the city for updated building code references and specific requirements for your property type or zoning district.

5. Zoning and Property Line Considerations

In addition to building codes, you’ll also need to follow zoning regulations:

• Setback requirements (how close the deck can be to property lines)
• Lot coverage limits
• Height restrictions (especially for covered or multi-story decks)
• Environmental overlays or stormwater management rules

For homes near shorelines or environmentally sensitive areas, extra reviews may apply.

6. Working with a Licensed Contractor

Hiring a professional who understands Tacoma’s permitting process can save you time, money, and stress. A licensed contractor will:

• Design your deck to code
• Handle the permit paperwork
• Schedule and manage inspections
• Ensure the finished product is safe and durable

At Decks Restore LLC, we work closely with city inspectors and know exactly what’s needed to get your deck approved and built without delays.

If you’re thinking about building a deck in Tacoma and aren’t sure where to begin, Decks Restore LLC is here to help. We handle everything from design and permitting to construction and final inspection—so you can sit back and enjoy your new outdoor space, worry-free.

Ready to get started? Contact us today for a free consultation or visit our gallery to see what’s possible.

Final Thoughts

Like many other Tacoma Building requirements, getting a permit and following other guidelines may not seem the most enthralling when planning for erecting a deck, but permits might just be the most critical one. For most deck designs, you will have to comply with the city’s building regulations for Tacoma and the supporting engineering standards. If these are not accurately completed, it can lead to deep legal trenches. Whether you want a simple cozy nook or a grand outdoor dining area with an integrated entertainment spot, a good deck permit law is a good start for any construction work.

Permits are guilds that point to where construction is possible and this marked area is the only one where any work wouldn’t result in fines, stop-work orders, or even having to tear down part of your build. Contrary to popular belief, having an inspected and permitted deck means your potential house is more valuable than if your deck were to go uninspected.

If you are not experienced with local zoning diagrams and construction blueprints, chances are you will face a new kind of challenging: an incredibly boring one. For other people, working with newer people may seem dreadfully mundane. Those ‘backwards’ are the ones who make an unforgettable difference.

We, at Decks Restore LLC, take care of the entire process from the design to the final inspection including the permit applications. Tacoma has particular building law requirements, which we will take care of as to make sure your deck will be compliant with all the codes, regulations, and checks for aesthetics. Our professional team takes great pleasure in providing service that involves safe and good looking decks that are long-lasting in terms of resilience to climate and weather conditions of the Northwest.