Deck cost in Tacoma, WA

A typical attached deck we price is 16×20 (320 sf).

A typical deck in Tacoma, WA is about $17,369, including a permit fee of $521.

What we assumed

For the permit line we assumed the City of Tacoma Planning and Development Services Table 8-1 path ($170 for the first $2,000 plus $32 per additional $1,000, ceil on partial thousands), plus Technology program 5%, plus the WA State Building Code Council fee of $6.50, at the official $12,000 typical valuation, so the typical fee is $521 ($490 + $24.50 + $6.50). Low $386.60 and high $789.80 use the same path at $8,000 and $19,200. Decks not exceeding 200 sf, not more than 30 in above grade, not attached, and not serving the required exit door are exempt; typical 16x20 = 320 sf attached deck is not that exemption. These totals are for the City of Tacoma, not Seattle and not unincorporated Pierce. Full arithmetic is in the calculation note on this page.

Questions about this estimate

How much does deck cost in Tacoma, WA?

Typical all-in is about $17,369. The official City of Tacoma Planning and Development Services permit fee of $521 ($490 Table 8-1 + $24.50 tech + $6.50 WA SBCC) is included in the all-in.

Is a permit required for Deck in Tacoma, WA?

Yes. City of Tacoma Planning and Development Services requires a permit for a typical Deck in Tacoma, WA. The typical listed fee is $521. The official path is the City of Tacoma Planning and Development Services Table 8-1 schedule ($170 for the first $2,000 plus $32 per additional $1,000, ceil on partial thousands), plus Technology program 5%, plus the WA State Building Code Council fee of $6.50. At the official $12,000 valuation that is $521 ($490 Table 8-1 + $24.50 tech + $6.50 WA SBCC). Low $386.60 and high $789.80 are the same path at $8,000 and $19,200. These totals are for the City of Tacoma, not Seattle and not unincorporated Pierce. Decks not exceeding 200 sf, not more than 30 in above grade, not attached, and not serving the required exit door are exempt; typical 16x20 = 320 sf attached deck is not that exemption. 65% commercial plan-review (Table 8-2) is not stacked; SFR remodel combination plan review is included in the combination path and was not added as a second 65%.

What is included in this Deck estimate for Tacoma, WA?

The estimate is labor adjusted for local wages in Tacoma, WA, plus materials at the national figure, at the typical size in the table above. The official typical permit fee of $521 is included in the all-in typical. That $521 is Table 8-1 building permit $490 plus Technology program 5% $24.50 plus the WA State Building Code Council fee $6.50 at the $12,000 typical valuation. All three extras are included. Decks not exceeding 200 sf, not more than 30 in above grade, not attached, and not serving the required exit door are exempt; typical 16x20 = 320 sf attached deck is not that exemption.

Why might the Tacoma permit fee differ from this typical figure?

The official Tacoma, WA fee comes from City of Tacoma PDS Fee Schedule Table 8-1 (effective January 1, 2026) plus Table 1 5% technology (valuation). The typical path is $521 at the official $12,000 valuation: Table 8-1 $490 plus Technology program 5% $24.50 plus the WA State Building Code Council fee $6.50. Low $386.60 at $8,000 and high $789.80 at $19,200 use the same path. These totals are for the City of Tacoma, not Seattle and not unincorporated Pierce. Decks not exceeding 200 sf, not more than 30 in above grade, not attached, and not serving the required exit door are exempt; typical 16x20 = 320 sf attached deck is not that exemption. 65% commercial plan-review (Table 8-2) is not stacked; SFR remodel combination plan review is included in the combination path and was not added as a second 65%. Verify with City of Tacoma Planning and Development Services.

How is the typical permit fee calculated for Deck in Tacoma, WA?

Listed totals are $386.60 at $8,000, $521 at $12,000, and $789.80 at $19,200. Low $8,000: Table 8-1 $170 + $32 x 6 = $362.00; plus Technology program 5% ($18.10) plus WA SBCC $6.50 = $386.60. Typical $12,000: Table 8-1 $170 + $32 x 10 = $490.00; plus Technology program 5% ($24.50) plus WA SBCC $6.50 = $521.00. High $19,200: additional $17,200 rounds up to 18 thousands, so Table 8-1 $170 + $32 x 18 = $746.00; plus Technology program 5% ($37.30) plus WA SBCC $6.50 = $789.80. The official typical extras are Table 8-1 building permit $490, Technology program 5% $24.50, and the WA State Building Code Council fee $6.50, and all three are included. Decks not exceeding 200 sf, not more than 30 in above grade, not attached, and not serving the required exit door are exempt; typical 16x20 = 320 sf attached deck is not that exemption. Full arithmetic is in the calculation note on this page.

What project value is this Deck permit fee based on in Tacoma, WA?

Project values used only for the permit formula (not your total cost): low $8,000, typical $12,000, and high $19,200. The official typical project value is $12,000. The permit totals at those values are $386.60, $521, and $789.80. The formula is Table 8-1 at $170 for the first $2,000 plus $32 per additional $1,000 (ceil on partial thousands), plus Technology program 5%, plus the WA State Building Code Council fee of $6.50. At $19,200 the additional $17,200 rounds up to 18 thousands.

How much does a 200, 320, or 400 sq ft deck cost in Tacoma?

Size on this page is deck walking surface. A 16 by 20 deck is 320 sq ft, and that is the typical job. The cost-by-size rows are 200 sq ft, 320 sq ft, and 400 sq ft. The calculator prices the installed deck per square foot, and 320 is inside the allowed range of 80 to 1,200, so these figures are that same scale. At 200 sq ft in Tacoma, WA the all-in typical is $11,051. At 320 sq ft the all-in is $11,619 low, $17,369 typical, and $23,254 high. At 400 sq ft the all-in typical is $21,581. Those all-in figures add the model's rounded permit for the valuation bands on this row. The official fees are $386.60 at $8,000, $521 at $12,000, and $789.80 at $19,200. The model rounds each to the nearest dollar before adding it, so the all-in uses $387 on the low, $521 on the typical, and $790 on the high. The permit is based on the assumed valuation, so it is not rescaled when the deck size changes, and it is not a new fee for 320 sq ft. Job cost is adjusted for local wages using the BLS construction-and-extraction mean of $42.11 per hour for the Seattle-Tacoma-Bellevue, WA metro (May 2025), labor wage multiplier 1.340, applied to the official 50% labor share. The permit line is not adjusted for local wages.

Do I need a permit for a deck in Tacoma, and what does the typical $521.00 include?

Yes. City of Tacoma Planning and Development Services requires a permit for a typical deck in Tacoma, WA, and the official typical fee is $521.00. That total is Table 8-1 building permit $490.00 plus Technology program 5% $24.50 plus the WA State Building Code Council fee $6.50, and all three extras are included. Decks not exceeding 200 sf, not more than 30 in above grade, not attached, and not serving the required exit door are exempt; the typical 16x20 = 320 sf attached deck is not that exemption. The 65% commercial plan-review (Table 8-2) is not stacked on this row. Confirm the Table 8-1 path with City of Tacoma Planning and Development Services before you apply.

Why are the low, typical, and high deck permit fees $386.60, $521.00, and $789.80 in Tacoma?

The low, typical, and high fees are three applications of the same City of Tacoma Table 8-1 path, not three different schedules. Low $8,000: Table 8-1 $170 + $32 x 6 = $362.00; plus Technology program 5% ($18.10) plus WA SBCC $6.50 = $386.60. Typical $12,000: Table 8-1 $170 + $32 x 10 = $490.00; plus Technology program 5% ($24.50) plus WA SBCC $6.50 = $521.00. High $19,200: additional $17,200 rounds up to 18 thousands, so Table 8-1 $170 + $32 x 18 = $746.00; plus Technology program 5% ($37.30) plus WA SBCC $6.50 = $789.80. Listed fee low, typical, and high stay $386.60 / $521.00 / $789.80. The partial-thousand step rounds up only on the high band. The permit is not rescaled when the deck size changes.

Is the 200 sq ft exemption the typical deck permit path in Tacoma?

No. The 200 sf exemption is not the typical path on this row. Decks not exceeding 200 sf, not more than 30 in above grade, not attached, and not serving the required exit door are exempt. The official typical job is a 16x20 = 320 sf attached deck, and that deck is not that exemption. The official typical permit fee for that path is $521.00 (Table 8-1 $490.00 plus Technology program 5% $24.50 plus the WA State Building Code Council fee $6.50).

Is the Tacoma deck permit the same as Seattle or unincorporated Pierce County?

These totals are for the City of Tacoma Planning and Development Services, not Seattle and not unincorporated Pierce. This row does not use a Seattle fee or an unincorporated Pierce County fee. Confirm the Table 8-1 path with City of Tacoma Planning and Development Services before you apply.