How much does a bathroom addition cost in Denver, CO?

The average bathroom addition in Denver, CO costs $55,447 in 2026. Costs range from $24,643 for a basic project to $110,894 for a high-end renovation. Denver is 23% more expensive than the national average of $45,000.

What is the labor rate for contractors in Denver?

The average contractor labor rate in Denver, CO is $38.49/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 $30,496 in Denver.

Are materials more expensive in Denver?

Denver has a material cost index of 117 (national average = 100). Materials cost about 17% more than the national average. For a bathroom addition, materials account for 45% of the cost, approximately $24,951.

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

Yes, a bathroom addition typically requires building permits in Denver, CO. The average permit cost in Denver is $2,288. Always confirm requirements with the Denver building department before starting work.

Is a bathroom addition a good investment in Denver?

A bathroom addition provides an estimated 58% ROI nationally. In Denver, where the median home price is $482,996, this project costs about 11.5% 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 Denver, CO — Costs $24,643 to $110,894

What does bathroom addition cost in Denver? Average $55,447, ranging $24,643–$110,894. Labor runs $38.49/hr locally — 23% above the national average. Free breakdown with material + labor split.

Denver, CO Market

+23% vs national

Labor Rate

$38.49/hr

Material Index

117

Avg Permit Cost

$2,288

Median Home Price

$482,996

As one of the largest metros in Colorado, Denver has a competitive contractor market with hundreds of licensed professionals. This typically gives homeowners more leverage on pricing, though high demand for renovations can offset that advantage. At 23% above the national average, Denver is one of the more expensive markets for home improvement — driven primarily by above-average labor rates in the region. The median home in Denver is valued at $482,996, putting this project at about 11.5% of home value — a moderate investment with a projected 58% ROI.

Low Estimate

$24,643

National: $20,000

Mid-Range

$55,447

National: $45,000

High End

$110,894

National: $90,000

Per Sq Ft

$493

National: $400

Duration: 6-10 weeks

DIY: Hard

Permits: Required

ROI: 58%

Bathroom Addition Cost Calculator for Denver

Adjusted for Denver's labor rate ($38.49/hr) and material costs (index 117).

Project Size: 200 sq ft

50 sq ft1,000 sq ft

Quality Level

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

Estimated Total in Denver

$55,447

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

Local Cost Breakdown

Labor (55%)$30,496

At Denver's average rate of $38.49/hr (28% above national avg)

Materials (45%)$24,951

Material cost index 117 (17% above national baseline of 100)

Bathroom Addition vs. Home Value in Denver

Metric	Denver	National Avg
Bathroom Addition (Mid-Range)	$55,447	$45,000
Median Home Price	$482,996	$350,000
Project as % of Home Value	11.5%	12.9%
Estimated ROI	58%	58%
Median Household Income	$76,237	$75,000

What Affects the Price in Denver

1Local labor rates ($38.49/hr in Denver)
2Material cost index (117 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 Denver, CO

Kitchen Remodel

$51,038

HardROI 72%

Master Bathroom Remodel

$34,184

HardROI 65%

Bathroom Remodel

$21,975

MediumROI 68%

Mudroom Addition

$18,398

HardROI 55%

Second Story Addition

$245,300

HardROI 60%

Accessory Dwelling Unit (ADU) Construction

$183,975

HardROI 80%

Room Addition

$110,385

HardROI 55%

Home Addition

$97,668

MediumROI 60%

Bathroom Addition in Other Colorado Cities

Colorado Springs, CO

$48,133

-13%Pop. 478,961

Aurora, CO

$48,764

-12%Pop. 386,261

Fort Collins, CO

$46,036

-17%Pop. 169,810

Lakewood, CO

$52,570

-5%Pop. 155,984

Thornton, CO

$48,479

-13%Pop. 141,867

Arvada, CO

$56,684

+2%Pop. 124,402

Westminster, CO

$55,966

+1%Pop. 116,317

Pueblo, CO

$45,190

-18%Pop. 111,876

Planning a Bathroom Addition in Denver

Building permits are typically required for a bathroom addition in Denver. The average permit fee in this area is $2,288, 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 Denver, skilled contractors charge an average of $38.49/hr, and the specialized nature of this work means cutting corners on labor can lead to costly rework.

For the median Denver household earning $76,237/year, this project at $55,447 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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