Building a home in New Hampshire in 2026 typically costs between $231,200 and $340,000, with most homeowners landing around $272,000 for a standard 1,850 square foot home. At $147 per square foot for a standard finish, New Hampshire sits above the national average of approximately $120 per square foot.
These figures reflect 2026 RSMeans construction data adjusted for New Hampshire's regional labor and material costs. The state cost index of 1.10x means that a project costing $200,000 nationally would cost approximately $220,000 in New Hampshire.
Construction costs within New Hampshire vary significantly by city. Urban areas like Manchester tend to have higher labor costs, while smaller cities may offer 10–20% savings.
Our New Hampshire construction cost estimates include 14 CSI categories: general conditions, site work, foundation, structural framing, roofing, windows and doors, exterior finish, insulation, drywall, flooring, plumbing, HVAC, electrical, and cabinetry. Each category shows both labor and material costs separately.
These estimates also include New Hampshire state sales tax, labor burden (10%), general contractor overhead and profit (15%), and a 5% contingency — giving you a true all-in project cost, not just a base construction number.
Costs do not include land, land development, site utilities connection, architect fees, or furniture and appliances. These items typically add $50,000–$150,000+ depending on your lot and specifications.
Before you can estimate construction costs, you need a plan. If you are still searching for the right design, Modern Villa Plans offers a curated collection of architect-designed house plans suited to New Hampshire's climate and building codes. Once you have your plan, come back and get your cost estimate in minutes.