City Building Permits
Somersworth, NH - 2026 Building Permit Guide
How to apply for a building permit in Somersworth, New Hampshire. Permit authority, application steps, fees, and inspection requirements.
Permit Authority
City of Somersworth issues all building, electrical, plumbing, and mechanical permits within city limits.
- Department
- Office of Code Enforcement (Development Services)
- Address
- Somersworth City Hall, 1 Government Way, Somersworth, NH 03878
- Phone
- (603) 692-9520
Online Permit Portal
Platform: Paper-based • Account required: No • Submission: In-person only
Additional resources:
Application Process
- Download or pick up the permit application from the Development Services office at City Hall, 1 Government Way, or from www.somersworth.com.
- Complete the application with full project description and estimated construction value.
- Submit application and required documents to the Code Enforcement office.
- Pay the permit fee.
- Staff reviews application; typical turnaround is 5 to 7 business days.
- Permit issued upon approval; post permit on job site.
- Schedule inspections by calling (603) 692-9520 with at least 24 hours notice.
- Final inspection conducted by all relevant inspectors before Certificate of Occupancy.
Typical processing time: 5 to 7 business days
General Requirements
ALL construction work requires a permit unless the Code Enforcement office specifically advises otherwise. Building, electrical, plumbing, and mechanical permits are all separate.
Required Documents
- Completed application
- Plans showing scope of work
- Licensed contractor information for trade work
- Building code
- NH State Building Code (RSA 155-A) with adopted amendments (updated as of August 13, 2024 per NH Department of Safety).
- Contractor requirements
- All trade work requires NH state licensure.
Fees
- Minimum permit fee
- $25.00
- Plan check fee
- Included in review
- Permit fee formula
- Residential (labor included): $9.00 per $1,000 of construction value plus $25.00 application fee. Residential (labor excluded): $12.00 per $1,000 of construction value plus $25.00 application fee. Commercial/Industrial: $9.00 per $1,000 of construction value plus $25.00 application fee.
- Payment note
- Payment due at application submission.
Fees change. Verify current amounts at the official fee schedule.
Work That Does NOT Require a Permit
Contact the Office of Code Enforcement (Development Services) to confirm whether your project requires a permit before starting work.
Inspections
How to Schedule
- (603) 692-9520 (phone)
- Scheduling deadline
- At least 24 hours notice required
- Time windows
- Morning and afternoon windows available
Typical inspection sequence: Required at various stages of construction (rough-in, before work is covered, and final). Final inspection conducted by all relevant inspectors. Health licenses and zoning verification inspections also available.
Additional Resources
- Building code: NH State Building Code (RSA 155-A) with adopted amendments (updated as of August 13, 2024 per NH Department of Safety).
- Zoning information: View zoning info
- Building Codes Chapter
- What Needs a Permit
- Inspections Page
- License lookup guide: New Hampshire Contractor License Requirements
- Contract template: New Hampshire Homeowner-Contractor Agreement
- New Hampshire hub: New Hampshire Contractor License & Permit Hub
Information on this page was last verified: March 2026. Permit rules and fees change — confirm current requirements directly with the Office of Code Enforcement (Development Services) before applying.
Frequently Asked Questions
Somersworth Building Permit FAQ
- Do I need a building permit in Somersworth, NH?
- ALL construction work requires a permit unless the Code Enforcement office specifically advises otherwise. Building, electrical, plumbing, and mechanical permits are all separate.
- How much does a building permit cost in Somersworth, NH?
- The minimum permit fee is $25.00. Fees are calculated as: Residential (labor included): $9.00 per $1,000 of construction value plus $25.00 application fee. Residential (labor excluded): $12.00 per $1,000 of construction value plus $25.00 application fee. Commercial/Industrial: $9.00 per $1,000 of construction value plus $25.00 application fee.. Plan check fee: Included in review.
- How do I apply for a building permit in Somersworth, NH?
- 1. Download or pick up the permit application from the Development Services office at City Hall, 1 Government Way, or from www.somersworth.com. 2. Complete the application with full project description and estimated construction value. 3. Submit application and required documents to the Code Enforcement office. 4. Pay the permit fee. 5. Staff reviews application; typical turnaround is 5 to 7 business days. 6. Permit issued upon approval; post permit on job site. 7. Schedule inspections by calling (603) 692-9520 with at least 24 hours notice. 8. Final inspection conducted by all relevant inspectors before Certificate of Occupancy.
- How long does it take to get a building permit in Somersworth, NH?
- Typical processing time is 5 to 7 business days.
- What work is exempt from building permits in Somersworth, NH?
- The following work is generally exempt: Work specifically deemed exempt by the Code Enforcement office after inquiry. Note: Somersworth states that ALL work requires a permit unless the office confirms otherwise; there is no published general exemption list. Contact (603) 692-9520 to confirm whether specific work requires a permit.
- How do I schedule a building inspection in Somersworth, NH?
- Inspections can be scheduled via: (603) 692-9520. At least 24 hours notice required.
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