Cost to Build a 500 sq ft Home in Idaho (2026)
Building a 500 sq ft two-story home in Idaho costs approximately $72,297–$92,015 for mid-range finishes.Idaho has a construction cost multiplier of 0.92× the national average.
Basic
Builder-grade finishes
$60,743
$121/sq ft
MOST COMMON
Mid-Range
Quality materials
$82,156
$164/sq ft
Premium
Custom high-end
$111,872
$224/sq ft
Estimated Build Cost in Idaho
$82,156
Range: $72,297 – $92,015
$164
per sq ft
$437/mo
est. mortgage
Configure Your Build
5004,0008,000
Upgraded finishes, quality materials
20% ($16,431)
3%20%50%
Mid-Range Finish Includes
- • Quartz countertops
- • Hardwood floors
- • Semi-custom cabinets
- • Upgraded fixtures
Loading chart…
Line-Item Estimate
500 sq ft · mid quality
🏗️Foundation & Concrete
Full basement or reinforced crawl space
$8,216
10%
🪵Framing & Structure
Advanced framing techniques, engineered lumber
$13,145
16%
🏠Exterior & Roofing
Fiber cement siding, architectural shingles
$10,680
13%
⚡HVAC / Plumbing / Electrical
High-efficiency HVAC, PEX plumbing, 200A service
$14,788
18%
🧱Insulation & Drywall
Blown-in insulation, smooth-finish drywall
$5,751
7%
🎨Interior Finishes
Quartz counters, hardwood floors, semi-custom cabinets
$13,145
16%
Total Estimate
Range: $72,297 – $92,015
$82,156
$164/sq ft avg
* Excludes land cost, which varies widely by location. Add $20,000–$200,000+ depending on your area.
Building a 500 sq ft Home in Idaho
Key Considerations
- → Rapid growth in Boise area
- → Cold winters require heavy insulation
- → Seismic zone in some regions
Cost Summary
State cost multiplier0.92×
Labor index0.88×
Typical permit cost$2,000
500 sq ft basic$60,743
500 sq ft mid$82,156
500 sq ft premium$111,872