How much does a bathroom addition cost in Tacoma, WA?

The average bathroom addition in Tacoma, WA costs $54,324 in 2026. Costs range from $24,144 for a basic project to $108,648 for a high-end renovation. Tacoma is 21% more expensive than the national average of $45,000.

What is the labor rate for contractors in Tacoma?

The average contractor labor rate in Tacoma, WA is $37.62/hour, compared to the national average of $30/hour. For a bathroom addition, labor typically accounts for 55% of the total cost, which is approximately $29,878 in Tacoma.

Are materials more expensive in Tacoma?

Tacoma has a material cost index of 115 (national average = 100). Materials cost about 15% more than the national average. For a bathroom addition, materials account for 45% of the cost, approximately $24,446.

Do I need a permit for a bathroom addition in Tacoma?

Yes, a bathroom addition typically requires building permits in Tacoma, WA. The average permit cost in Tacoma is $1,336. Always confirm requirements with the Tacoma building department before starting work.

Is a bathroom addition a good investment in Tacoma?

A bathroom addition provides an estimated 58% ROI nationally. In Tacoma, where the median home price is $501,552, this project costs about 10.8% of your home value. This is a moderate investment relative to home value — focus on features that appeal to buyers in the local market.

Bathroom Addition in Tacoma, WA — Costs $24,144 to $108,648

What does bathroom addition cost in Tacoma? Average $54,324, ranging $24,144–$108,648. Labor runs $37.62/hr locally — 21% above the national average. Free breakdown with material + labor split.

Tacoma, WA Market

+21% vs national

Labor Rate

$37.62/hr

Material Index

115

Avg Permit Cost

$1,336

Median Home Price

$501,552

Tacoma is a mid-sized city in Washington with a healthy pool of local contractors. Homeowners generally have several options to compare for a bathroom addition, which helps keep pricing competitive. At 21% above the national average, Tacoma is one of the more expensive markets for home improvement — driven primarily by above-average labor rates in the region. With a median home price of $501,552, this bathroom addition represents just 10.8% of typical home value — a relatively small investment that can significantly boost curb appeal or functionality.

Low Estimate

$24,144

National: $20,000

Mid-Range

$54,324

National: $45,000

High End

$108,648

National: $90,000

Per Sq Ft

$483

National: $400

Duration: 6-10 weeks

DIY: Hard

Permits: Required

ROI: 58%

Bathroom Addition Cost Calculator for Tacoma

Adjusted for Tacoma's labor rate ($37.62/hr) and material costs (index 115).

Project Size: 200 sq ft

50 sq ft1,000 sq ft

Quality Level

Mid-grade materials, good quality fixtures, standard options.

Estimated Total in Tacoma

$54,324

Based on 200 sq ft at mid quality, adjusted for Tacoma market rates.

Local Cost Breakdown

Labor (55%)$29,878

At Tacoma's average rate of $37.62/hr (25% above national avg)

Materials (45%)$24,446

Material cost index 115 (15% above national baseline of 100)

Bathroom Addition vs. Home Value in Tacoma

Metric	Tacoma	National Avg
Bathroom Addition (Mid-Range)	$54,324	$45,000
Median Home Price	$501,552	$350,000
Project as % of Home Value	10.8%	12.9%
Estimated ROI	58%	58%
Median Household Income	$78,142	$75,000

What Affects the Price in Tacoma

1Local labor rates ($37.62/hr in Tacoma)
2Material cost index (115 vs national 100)
3Location (new vs converted space)
4Plumbing distance
5Full vs half bath
6Fixture quality

Popular Upgrades

Walk-in shower
Double vanity
Heated floors

Other Projects in Tacoma, WA

Kitchen Remodel

$50,047

HardROI 72%

Master Bathroom Remodel

$33,510

HardROI 65%

Bathroom Remodel

$21,542

MediumROI 68%

Mudroom Addition

$18,030

HardROI 55%

Second Story Addition

$240,400

HardROI 60%

Accessory Dwelling Unit (ADU) Construction

$180,300

HardROI 80%

Room Addition

$108,180

HardROI 55%

Home Addition

$95,744

MediumROI 60%

Bathroom Addition in Other Washington Cities

Seattle, WA

$69,137

+27%Pop. 737,015

Spokane, WA

$62,608

+15%Pop. 228,989

Vancouver, WA

$58,488

+8%Pop. 190,915

Bellevue, WA

$67,916

+25%Pop. 151,854

Kent, WA

$54,118

SamePop. 136,588

Everett, WA

$59,500

+10%Pop. 110,629

Renton, WA

$62,016

+14%Pop. 106,785

Spokane Valley, WA

$62,049

+14%Pop. 103,597

Planning a Bathroom Addition in Tacoma

Building permits are typically required for a bathroom addition in Tacoma. The average permit fee in this area is $1,336, though costs vary based on project scope. Permit fees in this market are above average — factor them into your total budget. Plan for 6-10 weeks from start to finish.

A bathroom addition is a complex project best left to licensed professionals. In Tacoma, skilled contractors charge an average of $37.62/hr, and the specialized nature of this work means cutting corners on labor can lead to costly rework.

For the median Tacoma household earning $78,142/year, this project at $54,324 represents a significant investment. Consider financing options or phasing the work to spread costs over time.

Bathroom Addition — National Guide

See the full national cost guide with DIY tips, cost factors, and ROI analysis.

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