Polk County Home Building Costs
2026 construction cost estimates for Polk County, Iowa. Population: 490,000.
County $/sq ft
$180
Iowa avg: $164
vs State Average
+10%
Local market premium
2,000 sq ft home
$360,000
Mid-range estimate
Local Market Factors
- ›Des Moines
- ›Most expensive in state
- ›Growing tech sector
Cost by Home Size in Polk County
| Home Size | Basic | Mid-Range | Premium |
|---|---|---|---|
| 500 sq ft | $66,543 | $90,000 | $122,553 |
| 1,000 sq ft | $133,085 | $180,000 | $245,106 |
| 1,500 sq ft | $199,628 | $270,000 | $367,660 |
| 2,000 sq ft | $266,170 | $360,000 | $490,213 |
| 2,500 sq ft | $332,713 | $450,000 | $612,766 |
| 3,000 sq ft | $399,255 | $540,000 | $735,319 |
| 4,000 sq ft | $532,340 | $720,000 | $980,426 |
| 5,000 sq ft | $665,426 | $900,000 | $1,225,532 |
Costs are estimates only and represent construction costs, excluding land, architect fees, permits, and landscaping. Add 30–40% to these figures for total project cost.
County multiplier of 1.10× applied to Iowa state average (which itself is 0.87× the national average of $188/sq ft).