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§ 02
When a permit is required
Permit triggers and exempt work for Troy
Any erection, use, alteration of structure; change of use; enlargement or relocation of any building. Exemption: structures under 200 square feet serving as accessory use to an existing residence do not require a permit. Remodeling/repair that does not change purpose, exterior facade, enlarge, or increase dwelling units does not require a permit.
Structures under 200 square feet that are accessory to an existing residence
Remodeling or repair that does not change the purpose, exterior visual theme, enlarge the structure, extend the use, or increase the number of dwelling units
- Exempt Structures under 200 square feet that are accessory to an existing residence
- Exempt Remodeling or repair that does not change the purpose, exterior visual theme, enlarge the structure, extend the use, or increase the number of dwelling units
Required documents
- Application with site description
- Lot plan
- Proposed building location
- Water supply and sewage disposal locations
- Construction plans as applicable
- Building code
- Town of Troy General Construction and Development Ordinance; NH State Building Code
- Permit validity
- No land shall be occupied or used until Certificate of Occupancy is issued; specific expiration not confirmed
- Owner-builder
- Not specified publicly
- Contractor requirements
- NH-licensed electricians and plumbers required
§ 03
Application process
Typical processing: Not publicly stated
- 01 Download building permit application from town website
- 02 Complete application (description of location and nature of proposed building/work, lot boundaries, proposed structure location, existing water supply and sewage disposal)
- 03 Submit application to Town Hall for review by Building Inspector and Selectmen
- 04 Selectmen's Office coordinates with contracted Building Inspector for site visit and review
- 05 Permit issued upon approval by Selectmen or their agent
- 06 Post permit on job site
- 07 For new construction, four required inspections are scheduled with Building Inspector: a. Ground, drainage, and foundation; b. Rough framing, electrical, and plumbing; c. Insulation; d. Final inspection (Certificate of Occupancy)
Typical processing time: Not publicly stated
Source: Building Inspector ↗
§ 04
Fee schedule
Troy building permit fees
Fee type
Amount
01
Plan check fee
Not specified
02
Permit fee formula
Inspection costs at $50.00 per hour for both inspection and travel time; IRS mileage rate ($0.70/mile as of June 2025) for travel reimbursement
Contact Selectmen's Office at 603-242-7722 ext. 1
§ 05
Required inspections
Scheduling and sequence
How to schedule
- 603-242-7722 ext. 1 (phone)
- Inspection hours
- Not specified
Typical sequence: New construction: 1. Ground, drainage, and foundation; 2. Rough framing, electrical, and plumbing; 3. Insulation; 4. Final inspection for Certificate of Occupancy
§ 06
Frequently asked
Common questions about Troy permits
01 Do I need a building permit in Troy, NH? ▸
Any erection, use, alteration of structure; change of use; enlargement or relocation of any building. Exemption: structures under 200 square feet serving as accessory use to an existing residence do not require a permit. Remodeling/repair that does not change purpose, exterior facade, enlarge, or increase dwelling units does not require a permit.
02 How much does a building permit cost in Troy, NH? ▸
Building permit fees in Troy, NH are set by the local building department and vary by project type and valuation. Fees are calculated as: Inspection costs at $50.00 per hour for both inspection and travel time; IRS mileage rate ($0.70/mile as of June 2025) for travel reimbursement. Plan check fee: Not specified.
03 How do I apply for a building permit in Troy, NH? ▸
To apply for a building permit in Troy, NH, follow these steps: 1. Download building permit application from town website 2. Complete application (description of location and nature of proposed building/work, lot boundaries, proposed structure location, existing water supply and sewage disposal) 3. Submit application to Town Hall for review by Building Inspector and Selectmen 4. Selectmen's Office coordinates with contracted Building Inspector for site visit and review 5. Permit issued upon approval by Selectmen or their agent 6. Post permit on job site 7. For new construction, four required inspections are scheduled with Building Inspector: a. Ground, drainage, and foundation; b. Rough framing, electrical, and plumbing; c. Insulation; d. Final inspection (Certificate of Occupancy)
04 How long does it take to get a building permit in Troy, NH? ▸
Building permit processing times in Troy, NH typically run Not publicly stated. Timelines can vary based on project complexity and current department workload.
05 What work is exempt from building permits in Troy, NH? ▸
Not all construction work requires a permit in Troy, NH. The following work is generally exempt: Structures under 200 square feet that are accessory to an existing residence; Remodeling or repair that does not change the purpose, exterior visual theme, enlarge the structure, extend the use, or increase the number of dwelling units. When in doubt, confirm with the local building department before starting work.
06 How do I schedule a building inspection in Troy, NH? ▸
Once your permit is issued and work reaches an inspection milestone, you can schedule a building inspection in Troy, NH via: 603-242-7722 ext. 1.
Educational reference. Permit rules and fees change — confirm current requirements directly with Building Inspector before applying. Jaspector is not legal advice.