Detached Garage Cost in New Hampshire
Detached Garage in New Hampshire costs $38–$90 per sq ft in 2026. A typical 576 sq ft project averages $33,408. New Hampshire is in the Northeast region, where labor and materials run on the higher end of national pricing.
Last updated
How much does a detached garage cost in New Hampshire? A detached garage in New Hampshire costs $21,888–$51,840 in 2026, with most homeowners paying around $33,408 for a typical 576 sq ft project.
Get Your Exact New Hampshire Estimate
Pre-set to detached garage in New Hampshire — enter your project size for a localized range.
How big is your Detached Garage?
A 1-car garage is ~240 sq ft. A 2-car garage is ~576 sq ft.
- Per sq ft
- $38–$90
- Typical range
- $21,888–$51,840
- Average
- $33,408
- Labor share
- 50%
New Hampshire Average Cost (2026)
Cost Breakdown
Based on a 576 sq ft project in the Northeast region. Actual costs vary by contractor, site conditions, and material choices.
Detached Garage Cost by Size in New Hampshire
New Hampshire pricing for common detached garage project sizes (2026).
| Project size | Low | Mid | High |
|---|---|---|---|
| 288 sq ft | $10,944 | $16,704 | $25,920 |
| 576 sq ft | $21,888 | $33,408 | $51,840 |
| 1,152 sq ft | $43,776 | $66,816 | $103,680 |
Based on $38–$90 per sq ft in the Northeast region.
Building a Detached Garage in New Hampshire: Local Factors
What makes detached garage projects in New Hampshire different from the national baseline.
Permits & codes
New Hampshire adopts a statewide IRC-based building code, but enforcement is local — some smaller towns have no full-time inspector and handle permits through a part-time or regional official. A permit is still required in nearly every town; timelines are usually short outside the Manchester–Nashua corridor.
Climate & foundations
This is deep-frost country: footings commonly need to reach 48 inches or more, and heavy roof snow loads drive truss design. Those two factors together make the foundation and roof a larger share of garage cost in New Hampshire than in most states.
Market & timing
Southern New Hampshire pricing is pulled upward by the Boston-area labor market, while the Lakes Region and North Country run noticeably cheaper. Contractor supply is thin in winter — many crews book the full season by early spring, so quote early.
Financing Calculator
Estimate your monthly payment based on loan type and current rates.
Rates shown are approximate averages as of 2025 and will vary based on your credit score, lender, and loan-to-value ratio. Consult a lender for an accurate quote.
Return on Investment
How much value does a detached garage add to your home at resale?
How Detached Garage compares to other projects
ROI figures based on Remodeling Magazine Cost vs. Value Report 2024, national averages. Actual resale value depends on your market, home price tier, and project quality.
Find a Detached Garage Pro Near You
Get free quotes from top-rated local pros. No obligation.
Sponsored — BuildCost may earn a referral fee at no extra cost to you. This site connects you with independent service professionals through a third-party matching platform.
Recommended Products
Popular items for this project — links may earn a commission.
Materials & Supplies
Tools You'll Need
Frequently Asked Questions
How much does a detached garage cost in New Hampshire?
In New Hampshire, a typical 576 sq ft detached garage project costs between $21,888 and $51,840, with a mid-range average of $33,408. New Hampshire is in the Northeast region.
How much is labor for a detached garage in New Hampshire?
Labor accounts for approximately $16,704 of the total cost for a 576 sq ft detached garage project in New Hampshire. Labor costs in the Northeast tend to run 15–25% above the national average due to high demand and union labor markets.
Do I need a permit to build a detached garage in New Hampshire?
New Hampshire adopts a statewide IRC-based building code, but enforcement is local — some smaller towns have no full-time inspector and handle permits through a part-time or regional official. A permit is still required in nearly every town; timelines are usually short outside the Manchester–Nashua corridor.
How do I find a contractor for a detached garage in New Hampshire?
Get at least 3 quotes from licensed local contractors, verify their license with New Hampshire's contractor licensing board, and check reviews on Google or the BBB. Use our free estimate tool to understand fair pricing before you negotiate.
Does a detached garage add value to your home in New Hampshire?
On average, a detached garage recoups about 65% of its cost at resale nationwide. For a $33,408 project in New Hampshire, that's approximately $21,715 in added home value. Actual ROI varies by neighborhood and market conditions.
Detached Garage Material Calculators
Estimate exact material quantities and costs for your detached garage project.
Other Home Improvement Costs in New Hampshire
Detached Garage Cost in Nearby States
Get Your Estimate
How big is your Detached Garage?
A 1-car garage is ~240 sq ft. A 2-car garage is ~576 sq ft.
Pro Tips
- Get at least 3 contractor quotes
- Ask about permit requirements
- Budget 10–20% contingency
- Check contractor licenses