Customer Service: (253) 677-0290
Customer Service: (253) 677-0290
By Daniel Rotaru, Owner and CEO at Decks Restore. WA Contractor License # CC DECKSRL797P2. Tacoma, WA. Updated September 2026.
The conversation usually happens late. We are three days from decking, the frame is open, and the homeowner mentions they would like some lights in the stair risers and maybe an outlet out there for the griddle.
Both of those are easy. What is not easy is doing them after the boards go down, and what surprises people most is that in Tacoma the electrical side of a deck project is a completely separate permit, from a completely separate agency, with a completely separate inspector who has his own calendar.
So here is where the line actually falls, and why the timing matters more than the cost.
Low voltage lighting on its own generally does not trigger an electrical permit. Anything at line voltage does. New outlets, new circuits, hardwired fixtures, deck heaters, a hot tub feed, any of that puts you into permit territory.
The part people get backwards: the permit is triggered by the wiring that feeds the lights, not by the lights themselves.
Most deck lighting sold to homeowners runs at twelve volts through a listed transformer. Post cap lights, riser lights, the little pucks under a railing cap. You can run that wire yourself, staple it wherever you like, and nobody is going to inspect it.
But the transformer has to get power from somewhere. If it plugs into an existing exterior receptacle that is already there and already correct, you are done and no permit is involved. If there is no receptacle out there, or the one that exists is a forty year old non-GFCI outlet that should not be feeding anything, then adding or replacing that circuit is the permitted work.
That is the actual dividing line. Homeowners hear “low voltage lighting does not need a permit” and assume the whole job is exempt. Then it turns out the job includes running a new circuit from the panel to the back of the house, which is very much not exempt.
Line voltage is simpler to describe. Any new receptacle, any new branch circuit, any hardwired fixture, any switch leg, any subpanel: permit.
This is the part almost nobody knows, and it is the most useful thing on this page.
Your building permit for the deck comes from the City of Tacoma. Your electrical permit does not. If Tacoma Power is your serving utility, the electrical permit and the electrical inspection both come from Tacoma Public Utilities, not from the city and not from the state.
Tacoma Power’s electrical inspection jurisdiction covers more than the city limits. It includes properties they serve in Tacoma, Fircrest, University Place, Fife, and parts of Steilacoom, Lakewood, and unincorporated Pierce County. Labor and Industries does not issue permits or perform inspections inside that area, which is why a homeowner who calls L&I first sometimes ends up paying for the wrong permit and waiting on a refund.
A few practical details. Permit applications and inspection scheduling both run through the Accela system, and the electrical inspection line is (253) 502-8277. The electrical code here is Chapter 12.06.A of the Tacoma Municipal Code, which adopts the National Electrical Code with local amendments. Tacoma Power adopted the 2026 edition of the NEC as of June 1, 2026, so anything you read about deck receptacles written before that is worth double checking.
If Tacoma Power is not your utility, the path is different. A Federal Way or Kent job does not follow the same route as a Tacoma job, which is one more reason “what does an electrical permit cost” has no single answer across the South Sound. Confirm your jurisdiction before you apply.
I covered the building permit side separately in permits and regulations for deck construction in Tacoma.
Worth knowing before you decide to skip the electrical entirely.
The NEC has required a receptacle outlet at decks, balconies, and porches that are accessible from inside the dwelling for several code cycles now. It is not an upgrade, it is a requirement, and it applies based on the size and accessibility of the deck rather than on whether you asked for it.
So on a fair number of new builds the question is not whether you want an outlet. It is whether you are going to plan for one or discover it at inspection.
Three things, and the third is the one that gets flagged.
It has to be GFCI protected. It has to be a weather resistant device, which is a specific listing and not just a regular receptacle in a plastic box. And it needs an in use cover, the bubble style that closes over a cord while something is plugged in, rather than the flat flip lid that only protects the outlet when nothing is using it.
That last one fails inspection constantly. Somebody installs a flip cover, plugs in the string lights, and now there is an open box in the weather with a cord running through it. The in use cover exists specifically for the case where the thing is plugged in during a rainstorm, which around here is most of the year.
If you take one thing from this, take this.
Wiring that runs inside the frame has to be inspected before you cover it. That means before the decking goes down. On a deck with riser lights, under-rail lighting, or a ceiling system below, there is a rough-in inspection that has to happen while everything is still open.
Now count the inspectors. The city building inspector wants to see the footings before you backfill and the framing before you cover it. The Tacoma Power electrical inspector wants to see the wiring before you cover it. Different agencies, different scheduling systems, different lead times, and both of them standing between you and installing the deck boards.
I have watched a five day deck turn into a two week deck because the electrical rough-in was booked after the framing inspection and nobody wanted to be the one to say so. The fix is not complicated. Decide on lighting and outlets during design, not during framing, and get both inspections on the calendar in the right order before the crew shows up.
This applies with extra force if you are installing an under-deck ceiling, because that is a second surface that closes over wiring. I got into how those systems work in under-deck drainage in Tacoma.
A hot tub is not a big outlet. It is a dedicated circuit with a disconnect that has to be within sight of the tub but at a required distance from it, plus bonding requirements that catch people out, plus specific rules about where receptacles can and cannot sit relative to the water.
If you are adding one, the electrical scope is a real part of the budget and the structural side is a separate problem entirely. I walked through the load math in adding a hot tub to an existing Tacoma deck.
Same general story for heaters and fans under a louvered roof. Once you are hanging equipment overhead and feeding it at line voltage, you have an electrical project attached to your deck project.
A licensed electrical contractor can pull it. So can a property owner doing the work on their own residence, under the owner permit provisions in state law, though owner permits come with conditions about occupancy and about not doing the work on a rental or a house you are about to sell.
What is not allowed: a general contractor or a deck builder who is not an electrical contractor wiring your deck under their own license. We are not electricians. On jobs that need electrical, we coordinate with a licensed electrical contractor who pulls their own permit, and we sequence our framing around their rough-in. If a deck builder offers to just run the outlet for you as a favor, that is unpermitted work on your house, and it will surface later during a sale.
We handle the design decisions that affect the electrical: where the conduit and cable paths go through the frame, blocking for fixtures, sleeve locations through the ledger and rim, and making sure the frame is open when the electrical inspector needs to see it.
We do not do the wiring, and we do not pull the electrical permit. We bring in an electrical contractor and coordinate the schedule.
The reason I am spelling this out is that plenty of quotes for a new deck include the word “lighting” without saying which side of that line it falls on. Ask.
Do I need an electrical permit for low voltage deck lighting? Generally not for the low voltage wiring itself. You do need one for any new circuit or receptacle that feeds the transformer.
Who issues the electrical permit in Tacoma? Tacoma Power, part of Tacoma Public Utilities, for properties within their electrical inspection area. Not the city, and not L&I.
Is the electrical permit separate from the deck building permit? Yes. Two applications, two agencies, two inspectors, two schedules.
Can I add an outlet to my deck later? You can, but running cable to a deck after the boards are down usually means surface conduit or pulling boards. Deciding during framing costs almost nothing. Deciding afterward costs real money.
What happens if the work was never permitted? It tends to surface during a sale or an insurance claim. Unpermitted electrical is the kind of thing an inspector notices and a buyer’s agent writes into a repair request.
Decks Restore is a deck and outdoor living contractor in Federal Way and Tacoma, and we work across the North End, Proctor, Stadium District, Old Town, Browns Point, and out through Puyallup, Gig Harbor, University Place, and Fife.
If you are planning lighting, outlets, a heater, or a hot tub on a new deck, tell us at the estimate rather than at framing. Request a free quote and we will lay out what needs a permit, who issues it in your jurisdiction, and where it lands in the schedule.
Decks Restore Tacoma office: 748 Market St #173, Tacoma, WA 98402 Federal Way office: 33530 1st Way S Suite 102, Federal Way, WA 98003 Phone: (253) 677-0290 Hours: Monday to Friday 9:00 AM to 5:00 PM, Saturday 9:00 AM to 2:00 PM, closed Sunday WA Contractor License # CC DECKSRL797P2 Serving Tacoma, Federal Way, Gig Harbor, Puyallup, Kent, Auburn, Covington, Bonney Lake, and the surrounding South Sound.
More on our process and recent local projects on our page for deck builders in Tacoma.