From the Green River valley up to Lakeland Hills
Deck Builders in Auburn, WA
New composite and wood decks, matched to whether your home sits on the flat valley floor or up on one of Auburn's hills.
- Free on-site estimates
- Written, itemized quotes before work starts
- Framing and ledger details built for wet weather
Valley Floor or Hilltop: Decks Across Auburn
Deck builders in Auburn, WA work in a city with two very different kinds of ground. Downtown and the older neighborhoods sit on the floor of the Green and White River valley at about 92 feet of elevation. Lea Hill, West Hill and Lakeland Hills rise above it, and Lakeland Hills at the south end is one of the city's major newer residential areas. A deck on a flat valley lot and a deck on a hillside lot in Lakeland Hills call for different footings, heights and stairs. We build composite and wood decks across Auburn, plus covered decks, railings, repairs and refinishing.
The valley neighborhoods
On the valley floor, lots are mostly flat and decks are often low, close to the back door. That keeps stairs short and structures simple, but low decks dry out slowly. With little air moving underneath, moisture lingers on the framing. We leave room for airflow, keep posts on concrete footings above the soil, tape the joists and choose ground-contact lumber for anything near grade. Flooding along both rivers was once common; it largely ended after the Mud Mountain Dam on the White River and the Howard A. Hanson Dam on the Green River were completed.
The hill neighborhoods
Lea Hill and West Hill were annexed in 2008, adding about 15,000 residents. Lakeland Hills is a master-planned community at the south end of the city, where construction began in 1985 and parts in Pierce County were annexed in the late 1990s. Hillside lots can mean walkout basements, sloped back yards and second-story decks. Taller decks need larger footings, bracing, guards and longer stair runs, and once a deck's base is more than 30 inches above grade, it is over the city's permit threshold.
Auburn's permit rule of thumb
The City of Auburn's permit FAQ is direct: a deck whose base is more than 30 inches above existing grade needs a building permit regardless of size, and a structure connected to another building needs one regardless of size. An unattached accessory structure under 200 square feet likely will not, but setbacks still apply. In practice, almost any deck attached to an Auburn house needs a permit. We draw the plans, file through the city, and book inspections with the permit center.
Composite or wood?
Auburn averages about 37.1 inches of precipitation a year, with November, December and January each bringing more than 5 inches and July less than one. That long wet season is the main argument for composite decking: capped boards do not rot or need staining, and a wash once or twice a year keeps them clean. Wood, usually cedar or pressure-treated lumber, costs less up front and can be sanded and refinished, but needs a regular cleaning and stain schedule here. Either way, the framing underneath is treated wood, so we build it to shed water.
What goes into an Auburn deck project
- A site visit to measure, check slope and look at the house wall where a ledger would attach
- A drawing and written quote listing size, decking, railings, stairs and permit work
- Permit submission to the City of Auburn and inspection scheduling
- Concrete footings and framing sized for the height and load
- Flashed ledger, joist tape, corrosion-resistant hangers and fasteners
- Cleanup and a final walk-through with you
A county line runs through it too
Most of Auburn is in King County, with a small portion in Pierce County, including parts of Lakeland Hills. Permits inside city limits still go through the City of Auburn, whichever county the parcel is in. Call (253) 525-5245 to set up a free estimate.
Auburn Facts for Deck Planning
- Permit threshold. The City of Auburn's permit FAQ says a deck with a base more than 30 inches above existing grade needs a building permit regardless of size, as does a structure connected to another building.
- Wet winters, dry Julys. Auburn averages 37.1 inches of precipitation a year. November averages 6.1 inches, December 5.8 and January 5.3, while July averages only 0.9 inch.
- Hill annexations. Auburn annexed Lea Hill and West Hill in 2008, adding about 15,000 residents and 26% more land. Lakeland Hills, a master-planned community begun in 1985, sits at the city's south end.
- Valley floor and dams. Downtown Auburn sits at about 92 feet of elevation between the Green and White Rivers. Frequent flooding ended after the Mud Mountain Dam and Howard A. Hanson Dam were completed.
- Housing profile. Auburn had 87,256 residents in 2020. The Census reports a 60.6% owner-occupied rate and 88.6% of residents in the same house a year earlier.

Auburn Questions
Do I need a permit for a deck in Auburn?
If the deck is attached to your house or its base is more than 30 inches above existing grade, yes, according to the City of Auburn's permit FAQ. A small freestanding structure under 200 square feet may not, but it still has to meet setbacks. We confirm for your address and handle the application.
My Lakeland Hills home is in Pierce County. Does the county issue the permit?
No. Lakeland Hills is inside Auburn city limits, so the City of Auburn issues deck permits even for parcels on the Pierce County side.
Is composite worth it in Auburn's weather?
For many owners, yes. With more than 5 inches of rain in each of the three winter months, wood needs regular cleaning and refinishing. Composite skips the staining. The frame under either is treated lumber, so it is built the same careful way.
We have a low deck on the valley floor. Why does it stay damp?
Low decks get little airflow underneath, so the framing and boards dry slowly after rain. Wider board gaps, venting the sides and keeping soil and plants away from the frame all help. When we rebuild a low deck, we plan for that airflow.
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