Construction Costs in Idaho
Relative cost multipliers for Idaho, compared to the U.S. national average (1.0). Values above 1.0 are above average.
Last updated 2026-08-21
Construction Costs in Idaho
Construction costs in Idaho sit just below the national average, around $147 per square foot. Rapid growth in the Boise area has raised demand for labor and materials. Overall, building here remains moderately affordable.
Cost per Square Foot in Idaho
The average construction cost in Idaho is about $147 per square foot.
This compares to a national average of about $150 per square foot. Actual costs vary by finish quality, site conditions, and local labor.
Estimated Construction Cost by Home Size in Idaho
| Home Size | Estimated Cost |
|---|---|
| 800 sq ft | $117,600 |
| 1,200 sq ft | $176,400 |
| 1,600 sq ft | $235,200 |
| 2,000 sq ft | $294,000 |
| 2,500 sq ft | $367,500 |
What Drives Construction Costs in Idaho
- Fast population growth in the Boise metro that keeps construction labor in high demand.
- Snow loads and cold winters in many areas that require strong roofs and good insulation.
- Cold climate and heating demands that add to mechanical and envelope costs.
- Rising land prices and impact fees in rapidly growing communities.
- Regional access to lumber and building supplies that keeps some material costs moderate.
Construction Cost FAQ for Idaho
How much does it cost to build in Idaho?
The average is roughly $147 per square foot, with the fast growing Boise area often coming in higher.
Does the climate raise building costs in Idaho?
Yes. Cold winters and snow loads require better insulation, stronger roofs, and efficient heating, adding to the budget.
Are labor costs rising in Idaho?
Labor costs have risen in recent years because of rapid growth and strong construction demand, especially around Boise.
Does Idaho require a contractor license?
Yes. Idaho licenses contractors through the Division of Occupational and Professional Licenses, adding a small compliance cost.