On this page 5
§ 02
When a permit is required
Permit triggers and exempt work for Londonderry
New construction, additions, remodels, decks, pools, sheds,
Sheds under 400 square feet (effective January 1, 2025; setback compliance still required)
- Exempt Sheds under 400 square feet (effective January 1, 2025; setback compliance still required)
Required documents
- Completed application
- for new construction -- general information guide
- Building code
- 2021 IBC, 2021 IRC, 2021 IPC, 2021 IMC, 2021 International Pool and
- Owner-builder
- Not specified publicly
- Contractor requirements
- State-licensed trades required
§ 03
Fee schedule
Londonderry building permit fees
Fee type
Amount
01
Minimum permit fee
$25 application fee per permit; see FY26 Fee Schedule for full amounts
02
Plan check fee
Not specified publicly
03
Permit fee formula
Not specified publicly; see current fee schedule
Application fee of $25 required with each submission; check or in-person
Fees change periodically. Confirm at the official fee schedule ↗ before budgeting.
§ 04
Required inspections
Scheduling and sequence
Typical sequence: Contact department for project-specific sequence
§ 05
Frequently asked
Common questions about Londonderry permits
01 Do I need a building permit in Londonderry, NH? ▸
New construction, additions, remodels, decks, pools, sheds,
02 How much does a building permit cost in Londonderry, NH? ▸
Building permit fees in Londonderry, NH are set by the local building department and vary by project type and valuation. The minimum permit fee is $25 application fee per permit; see FY26 Fee Schedule for full amounts. Fees are calculated as: Not specified publicly; see current fee schedule. Plan check fee: Not specified publicly.
03 How long does it take to get a building permit in Londonderry, NH? ▸
Building permit processing times in Londonderry, NH typically run Not specified; contact department. Timelines can vary based on project complexity and current department workload.
04 What work is exempt from building permits in Londonderry, NH? ▸
Not all construction work requires a permit in Londonderry, NH. The following work is generally exempt: Sheds under 400 square feet (effective January 1, 2025; setback compliance still required). When in doubt, confirm with the local building department before starting work.
last verified April 2026
source Building and Zoning Enforcement ↗
entry id permits/new-hampshire/rockingham/londonderry
Educational reference. Permit rules and fees change — confirm current requirements directly with Building and Zoning Enforcement before applying. Jaspector is not legal advice.