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§ 02
When a permit is required
Permit triggers and exempt work for Hudson
Permit required for new construction, alterations, additions, finished attics/basements, interior wall changes, decks, pools, fences, sheds, and garages. Repairs generally do not require permits (exceptions apply).
Residential roofing and siding do not require permits.
Above-ground pools, decks, and sheds are exempt from plot plan requirements (permits may still be required).
Commercial and industrial projects require permits for roofing, windows, and siding.
- Exempt Residential roofing and siding do not require permits.
- Exempt Above-ground pools, decks, and sheds are exempt from plot plan requirements (permits may still be required).
- Exempt Commercial and industrial projects require permits for roofing, windows, and siding.
Note: Contact Inspectional Services for complete exempt work list.
Required documents
- One set of plans
- NH Residential Energy Code Application (required for any added heated/cooled living space)
- Building code
- NH State Building Code (RSA 155-A); current suite.
- Permit validity
- Not specified; contact Inspectional Services.
- Owner-builder
- Not specified on public pages.
- Contractor requirements
- NH state licenses required for plumbing, electrical, and gas work.
§ 03
Application process
Typical processing: 30 days per state law.
- 01 Download building permit application from town website.
- 02 Complete application electronically (save to device) or print and fill by hand.
- 03 Submit application and plans via WeTransfer upload (https://hudsonnh.wetransfer.com), email to Inspectionalservices@hudsonnh.gov, mail, or in-person drop-off at 12 School Street.
- 04 Submit separate applications for electrical, plumbing, and mechanical work as needed.
- 05 State law requires review within 30 days.
- 06 Pay fees via online payment portal or by check payable to 'Town of Hudson.'
- 07 Permit delivered by mail, email, or pick-up after payment received.
- 08 Schedule inspections by calling (603) 886-6005.
- 09 Re-inspection fee charged for sites not ready at time of inspection.
Typical processing time: 30 days per state law.
§ 04
Fee schedule
Hudson building permit fees
Fee type
Amount
01
Minimum permit fee
$30 application fee; $0.40/sq ft for residential construction with $30 minimum
02
Plan check fee
Not specified separately; contact Inspectional Services
03
Permit fee formula
Square-footage-based; $0.40/sq ft residential
04
Reinspection fee
Reinspection fee charged if site not ready at time of inspection; contact department for amount
Online payment portal available; checks payable to 'Town of Hudson'; permits mailed, emailed, or picked up after payment
Fees change periodically. Confirm at the official fee schedule ↗ before budgeting.
§ 05
Required inspections
Scheduling and sequence
How to schedule
- (603) 886-6005 (phone)
- Inspection hours
- Monday-Friday 8:00 am - 4:30 pm
Typical sequence: Per project type; contact Inspectional Services for sequence.
§ 06
Frequently asked
Common questions about Hudson permits
01 Do I need a building permit in Hudson, NH? ▸
Permit required for new construction, alterations, additions, finished attics/basements, interior wall changes, decks, pools, fences, sheds, and garages. Repairs generally do not require permits (exceptions apply).
02 How much does a building permit cost in Hudson, NH? ▸
Building permit fees in Hudson, NH are set by the local building department and vary by project type and valuation. The minimum permit fee is $30 application fee; $0.40/sq ft for residential construction with $30 minimum. Fees are calculated as: Square-footage-based; $0.40/sq ft residential. Plan check fee: Not specified separately; contact Inspectional Services.
03 How do I apply for a building permit in Hudson, NH? ▸
To apply for a building permit in Hudson, NH, follow these steps: 1. Download building permit application from town website. 2. Complete application electronically (save to device) or print and fill by hand. 3. Submit application and plans via WeTransfer upload (https://hudsonnh.wetransfer.com), email to Inspectionalservices@hudsonnh.gov, mail, or in-person drop-off at 12 School Street. 4. Submit separate applications for electrical, plumbing, and mechanical work as needed. 5. State law requires review within 30 days. 6. Pay fees via online payment portal or by check payable to 'Town of Hudson.' 7. Permit delivered by mail, email, or pick-up after payment received. 8. Schedule inspections by calling (603) 886-6005. 9. Re-inspection fee charged for sites not ready at time of inspection.
04 How long does it take to get a building permit in Hudson, NH? ▸
Building permit processing times in Hudson, NH typically run 30 days per state law.. Timelines can vary based on project complexity and current department workload.
05 What work is exempt from building permits in Hudson, NH? ▸
Not all construction work requires a permit in Hudson, NH. The following work is generally exempt: Residential roofing and siding do not require permits.; Above-ground pools, decks, and sheds are exempt from plot plan requirements (permits may still be required).; Commercial and industrial projects require permits for roofing, windows, and siding.. Note: Contact Inspectional Services for complete exempt work list. When in doubt, confirm with the local building department before starting work.
06 How do I schedule a building inspection in Hudson, NH? ▸
Once your permit is issued and work reaches an inspection milestone, you can schedule a building inspection in Hudson, NH via: (603) 886-6005.
last verified April 2026
source Inspectional Services Department ↗
entry id permits/new-hampshire/hillsborough/hudson
Educational reference. Permit rules and fees change — confirm current requirements directly with Inspectional Services Department before applying. Jaspector is not legal advice.