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Merrimack County Home Building Costs

Building a house in Merrimack County, New Hampshire costs about $196/sq ft in 2026 — roughly $392,000 for a 2,000 sq ft mid-range home (construction only, land excluded). Population: 155,000.

County $/sq ft
$196
New Hampshire avg: $200
vs State Average
-2%
Local market premium
2,000 sq ft home
$392,000
Mid-range estimate

Local Market Factors

Cost by Home Size in Merrimack County

Home SizeBasicMid-RangePremium
500 sq ft$72,457$98,000$133,447
1,000 sq ft$144,915$196,000$266,894
1,500 sq ft$217,372$294,000$400,340
2,000 sq ft$289,830$392,000$533,787
2,500 sq ft$362,287$490,000$667,234
3,000 sq ft$434,745$588,000$800,681
4,000 sq ft$579,660$784,000$1,067,574
5,000 sq ft$724,574$980,000$1,334,468

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 0.98× applied to New Hampshire state average (which itself is 1.12× the national average of $179/sq ft).

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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.