Cost to Build a House in Boise, Idaho
Construction costs in Boise, Idaho typically range from $190–$335 per square foot. Typical full builds run $380K–$1.17M, with ADUs from $188K–$288K and permits 2%–5%–$13K–$32K. Average timeline: 4–8 months.
Cost Snapshot
- Cost per Square Foot: $190–$335
- Typical Full Build: $380K–$1.17M
- ADU Construction: $188K–$288K
- Permit Costs: 2%–5%–$13K–$32K
- Typical Timeline: 4–8 months
Cost Impact Factors
- Zoning restrictions in Boise
- Lot size, slope, and access
- Permit requirements in Boise
- Energy and building codes
- Labor costs in Idaho
Frequently Asked Questions
- How much does it cost to build a house in Boise?
- In 2026, residential construction in Boise costs $190–$335 per square foot depending on finish tier, lot conditions, and project scope.
- How long does it take to build a house in Boise?
- A typical new-construction home in Boise takes 8–14 months from permit approval to completion. Permit processing adds 4–8 months.
- How much does an ADU cost in Boise?
- ADU construction in Boise typically costs $188K–$288K depending on size, finish level, and whether it's attached or detached.
- What permits do I need to build in Boise?
- You'll need building permits, plan check approval, and potentially grading, electrical, plumbing, and mechanical permits. Permit and soft costs typically run 2%–5% of build cost — roughly $13K–$32K on a typical project.
- Is Buildora IQ accurate for Boise estimates?
- Yes. Buildora IQ calibrates every estimate to Boise's current labor rates, material costs, and permit fee structures using local market data.
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