On this page 6
§ 02
When a permit is required
Permit triggers and exempt work for Groton
New construction, additions, structural work, occupancy changes, decks, and most trade permits.
Detached accessory structures up to 200 square feet
Fences up to 7 feet
Low retaining walls without surcharge
Sidewalks and driveways not over occupied space
Non-structural finish work
- Exempt Detached accessory structures up to 200 square feet
- Exempt Fences up to 7 feet
- Exempt Low retaining walls without surcharge
- Exempt Sidewalks and driveways not over occupied space
- Exempt Non-structural finish work
Required documents
- Permit application
- plans
- site plan
- valuation
- contractor credentials
- any related zoning or environmental approvals.
- Building code
- 2022 Connecticut State Building Code.
- Permit validity
- State-code 180 day rule unless extended.
- Owner-builder
- Owners may generally self-apply but still need code compliance and licensed trades where required.
- Contractor requirements
- Connecticut trade licenses and home improvement registration rules apply.
§ 03
Application process
Typical processing: Not publicly posted; coastal review can materially extend timing.
- 01 Confirm whether the parcel is in the Town of Groton or the City of Groton because the building authority differs.
- 02 Obtain the current permit package from the Town Building Official and assemble plans, valuation, and site documentation.
- 03 Submit with any zoning, inland wetlands, floodplain, or coastal site plan approvals required.
- 04 After review and payment, receive the permit and schedule inspections during construction.
Typical processing time: Not publicly posted; coastal review can materially extend timing.
§ 04
Fee schedule
Groton building permit fees
Fee type
Amount
01
Minimum permit fee
Not publicly posted
02
Plan check fee
Not publicly posted
03
Permit fee formula
Not publicly posted
04
Reinspection fee
Not publicly posted
Confirm payment method and fee calculation with the office.
§ 05
Required inspections
Scheduling and sequence
How to schedule
- Through the Building Official by phone or email (department)
- Inspection hours
- Not publicly posted
Typical sequence: Footing, foundation, framing, rough trades, insulation or energy, final, certificate of occupancy as applicable
Ask in advance about failed inspection or additional trip charges.
§ 06
Frequently asked
Common questions about Groton permits
01 Do I need a building permit in Groton, CT? ▸
New construction, additions, structural work, occupancy changes, decks, and most trade permits.
02 How much does a building permit cost in Groton, CT? ▸
Building permit fees in Groton, CT are set by the local building department and vary by project type and valuation. The minimum permit fee is Not publicly posted. Fees are calculated as: Not publicly posted. Plan check fee: Not publicly posted.
03 How do I apply for a building permit in Groton, CT? ▸
To apply for a building permit in Groton, CT, follow these steps: 1. Confirm whether the parcel is in the Town of Groton or the City of Groton because the building authority differs. 2. Obtain the current permit package from the Town Building Official and assemble plans, valuation, and site documentation. 3. Submit with any zoning, inland wetlands, floodplain, or coastal site plan approvals required. 4. After review and payment, receive the permit and schedule inspections during construction.
04 How long does it take to get a building permit in Groton, CT? ▸
Building permit processing times in Groton, CT typically run Not publicly posted; coastal review can materially extend timing.. Timelines can vary based on project complexity and current department workload.
05 What work is exempt from building permits in Groton, CT? ▸
Not all construction work requires a permit in Groton, CT. The following work is generally exempt: Detached accessory structures up to 200 square feet; Fences up to 7 feet; Low retaining walls without surcharge; Sidewalks and driveways not over occupied space; Non-structural finish work. When in doubt, confirm with the local building department before starting work.
06 How do I schedule a building inspection in Groton, CT? ▸
Once your permit is issued and work reaches an inspection milestone, you can schedule a building inspection in Groton, CT via: Through the Building Official by phone or email.
last verified April 2026
source Town of Groton Building Official ↗
entry id permits/connecticut/new-london/groton
Educational reference. Permit rules and fees change — confirm current requirements directly with Town of Groton Building Official before applying. Jaspector is not legal advice.