Home / Rhode Island / Washington County
Washington County Home Building Costs
2026 construction cost estimates for Washington County, Rhode Island. Population: 130,000.
County $/sq ft
$234
Rhode Island avg: $229
vs State Average
+2%
Local market premium
2,000 sq ft home
$468,000
Mid-range estimate
Local Market Factors
- ›South County/coastal
- ›Coastal premium, second homes
Cost by Home Size in Washington County
| Home Size | Basic | Mid-Range | Premium |
|---|---|---|---|
| 500 sq ft | $86,505 | $117,000 | $159,319 |
| 1,000 sq ft | $173,011 | $234,000 | $318,638 |
| 1,500 sq ft | $259,516 | $351,000 | $477,957 |
| 2,000 sq ft | $346,021 | $468,000 | $637,277 |
| 2,500 sq ft | $432,527 | $585,000 | $796,596 |
| 3,000 sq ft | $519,032 | $702,000 | $955,915 |
| 4,000 sq ft | $692,043 | $936,000 | $1,274,553 |
| 5,000 sq ft | $865,053 | $1,170,000 | $1,593,191 |
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 1.02× applied to Rhode Island state average (which itself is 1.22× the national average of $188/sq ft).