Bathroom Addition in Boise, ID — Costs $19,822 to $89,198
What does bathroom addition cost in Boise? Average $44,599, ranging $19,822–$89,198. Labor runs $30.25/hr locally — 1% below the national average. Free breakdown with material + labor split.
Boise, ID Market
-1% vs nationalLabor Rate
$30.25/hr
Material Index
97
Avg Permit Cost
$1,852
Median Home Price
$347,811
Boise is a mid-sized city in Idaho with a healthy pool of local contractors. Homeowners generally have several options to compare for a bathroom addition, which helps keep pricing competitive. Boise offers slightly below-average renovation costs, giving homeowners a small cost advantage compared to most US markets. The median home in Boise is valued at $347,811, putting this project at about 12.8% of home value — a moderate investment with a projected 58% ROI.
Low Estimate
$19,822
National: $20,000
Mid-Range
$44,599
National: $45,000
High End
$89,198
National: $90,000
Per Sq Ft
$396
National: $400
Bathroom Addition Cost Calculator for Boise
Adjusted for Boise's labor rate ($30.25/hr) and material costs (index 97).
Mid-grade materials, good quality fixtures, standard options.
Estimated Total in Boise
$44,599
Based on 200 sq ft at mid quality, adjusted for Boise market rates.
Local Cost Breakdown
At Boise's average rate of $30.25/hr (1% above national avg)
Material cost index 97 (3% below national baseline of 100)
Bathroom Addition vs. Home Value in Boise
| Metric | Boise | National Avg |
|---|---|---|
| Bathroom Addition (Mid-Range) | $44,599 | $45,000 |
| Median Home Price | $347,811 | $350,000 |
| Project as % of Home Value | 12.8% | 12.9% |
| Estimated ROI | 58% | 58% |
| Median Household Income | $80,749 | $75,000 |
What Affects the Price in Boise
- 1Local labor rates ($30.25/hr in Boise)
- 2Material cost index (97 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 Boise, ID
Kitchen Remodel
$41,384
Master Bathroom Remodel
$27,643
Bathroom Remodel
$17,771
Mudroom Addition
$14,838
Second Story Addition
$197,833
Accessory Dwelling Unit (ADU) Construction
$148,375
Room Addition
$89,025
Home Addition
$78,980
Bathroom Addition in Other Idaho Cities
Planning a Bathroom Addition in Boise
Building permits are typically required for a bathroom addition in Boise. The average permit fee in this area is $1,852, 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 Boise, skilled contractors charge an average of $30.25/hr, and the specialized nature of this work means cutting corners on labor can lead to costly rework.
With a median household income of $80,749, many Boise residents can budget for this project through savings. The mid-range cost of $44,599 represents 55% of the typical household's annual income.
Bathroom Addition — National Guide
See the full national cost guide with DIY tips, cost factors, and ROI analysis.
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