Honolulu County Home Building Costs
Building a house in Honolulu County, Hawaii costs about $319/sq ft in 2026 — roughly $638,000 for a 2,000 sq ft mid-range home (construction only, land excluded). Population: 990,000.
Local Market Factors
- ›Most contractor access on island chain
- ›All materials shipped in
Cost by Home Size in Honolulu County
| Home Size | Basic | Mid-Range | Premium |
|---|---|---|---|
| 500 sq ft | $117,928 | $159,500 | $217,191 |
| 1,000 sq ft | $235,856 | $319,000 | $434,383 |
| 1,500 sq ft | $353,785 | $478,500 | $651,574 |
| 2,000 sq ft | $471,713 | $638,000 | $868,766 |
| 2,500 sq ft | $589,641 | $797,500 | $1,085,957 |
| 3,000 sq ft | $707,569 | $957,000 | $1,303,149 |
| 4,000 sq ft | $943,426 | $1,276,000 | $1,737,532 |
| 5,000 sq ft | $1,179,282 | $1,595,000 | $2,171,915 |
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 Hawaii state average (which itself is 1.75× the national average of $179/sq ft).
Cost data: HouseBuildCalc Permit Cost Index (876,000+ building permits, 1,700+ ZIP codes), U.S. Census Bureau Survey of Construction, BLS Producer Price Index, NAHB Cost of Constructing a Home (published summaries). County-level multipliers are estimates derived from regional market data. For planning purposes only.