Home Addition in Boise, ID — Costs $29,618 to $197,450
What does home addition cost in Boise? Average $78,980, ranging $29,618–$197,450. 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 home 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 22.7% of home value — a moderate investment with a projected 60% ROI.
Low Estimate
$29,618
National: $30,000
Mid-Range
$78,980
National: $80,000
High End
$197,450
National: $200,000
Per Sq Ft
$15
National: $15
Home 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
$78,980
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)
Home Addition vs. Home Value in Boise
| Metric | Boise | National Avg |
|---|---|---|
| Home Addition (Mid-Range) | $78,980 | $80,000 |
| Median Home Price | $347,811 | $350,000 |
| Project as % of Home Value | 22.7% | 22.9% |
| Estimated ROI | 60% | 60% |
| 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)
- 3Material quality
- 4Labor rates
- 5Project size
Popular Upgrades
- Premium materials
- Custom design
Other Projects in Boise, ID
Home Addition in Other Idaho Cities
Planning a Home Addition in Boise
Building permits are typically required for a home 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 1-2 weeks from start to finish.
A home 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 $78,980 represents 98% of the typical household's annual income.
Home Addition — National Guide
See the full national cost guide with DIY tips, cost factors, and ROI analysis.
All Construction Costs in Boise
View labor rates, material costs, and project estimates for Boise, ID.
Explore All Project Cost Guides
Compare costs across 120+ home improvement projects in 3,636 cities nationwide.
View All Project Costs