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CT coastal permitting

CT Coastal Permitting

Permitting coastal structures in Connecticut often involves obtaining permits from the three levels of government:


  1. STATE: The State of Connecticut Department of Energy & Environmental Protection (aka CT-DEEP, DEEP), Land and Water Resources Division (LWRD)
  2. FEDERAL: The United States Army Corps of Engineers, New England District (aka USACE, ACOE, NAE, Army Corps)
  3. LOCAL: cities, towns, and some associations


The CT-DEEP is generally viewed as the most prominent agency and the first point of contact when starting a project that requires a coastal permit. The Connecticut Coastal Management Manual is a key resource to help understand and navigate the laws, regulations/rules, and policies/standards of the Connecticut Coastal Management Act.


The Army Corps Connecticut General Permits are aligned with the DEEP coastal permitting program, so most projects that are eligible for a DEEP coastal permit are also eligible for an Army Corps coastal permit. In fact, the Army Corps typically accepts the DEEP coastal permit application, which means a second application is often not required. This streamlined process allows you to apply for state and federal permits at the same time.


Local permits are typically requested after receiving DEEP and Army Corps coastal permits. Having these permits in-hand normally strengthens the local application.


Please drop us a line if you have ideas to share, questions to ask, or a project to discuss.

coastal PERMITS - THREE Levels OF GOVERNMENT

STATE: CT DEEP

FEDERAL: Army Corps

FEDERAL: Army Corps

The CT Department of Energy & Environmental Protection (aka CT-DEEP; DEEP) issues coastal permits.

The State of Connecticut Department of Energy & Environmental Protection (aka CT-DEEP, DEEP) is the lead state agency responsible for regulating work and development in coastal/tidal waters and tidal wetlands. The most common limit of the DEEP's jurisdiction is called the Coastal Jurisdiction Line (aka CJL), which is a specific ground elevation above sea level. Each coastal city/town in Connecticut has it's own CJL elevation. The DEEP issues coastal permits for various activities and development that extend into their jurisdiction, including such projects as beach nourishment, boat lifts, bulkheads, docks, dredging, groins, moorings, seawalls, and tidal wetland restoration. There are several types of DEEP coastal permits, each one intended for a certain type of coastal activity. Shore Design specializes in providing professional design and permitting services across all types of DEEP coastal permits.

Learn More Directly from DEEP

FEDERAL: Army Corps

FEDERAL: Army Corps

FEDERAL: Army Corps

The Army Corps of Engineers (aka USACE, ACOE, NAE, Army Corps) issues coastal permits.

The U.S. Army Corps of Engineers, New England District (aka USACE, ACOE, NAE, Army Corps) is the lead federal agency responsible for regulating civilian work and development in waters of the United States, which often covers the same jurisdiction as the DEEP. The Army Corps typically reviews the DEEP coastal permit application, which means a second application is often not required. Shore Design understands the Army Corps coastal permitting process and can help navigate this important step in the approval process.

Learn More Directly from USACE

LOCAL: City/Town

FEDERAL: Army Corps

LOCAL: City/Town

Cities, towns, and associations in CT regulate coastal structures with zoning and building permits.

Cities, town, and some associations in Connecticut often regulate coastal work by issuing a coastal site plan approval or special permit, which are types of zoning permits. In addition, some municipalities require building permits. These local approvals typically come after state and federal coastal permits have been issued. Because local permitting requirements vary across municipalities, it is a good practice to confirm what permits are required (if any) by reviewing the current zoning regulations and/or consulting directly with the land use department. Shore Design understands local permitting requirements and can navigate this final step in the approval process.

Ct state building code

CT deep coastal permits for existing structures

General Permit for Coastal Maintenance

General Permit for Coastal Maintenance

General Permit for Coastal Maintenance

The CT DEEP allows coastal maintenance to existing seawalls and docks through their General Permit.

The DEEP General Permit for Coastal Maintenance is a set of regulations intended to streamline and expedite approval of specific minor coastal maintenance activities to existing structures. Eligible activities include establishing a marina boundary, remedial activities, FEMA modifications to houses, reconstructing a legal structure, CT-DOT structures, beach grading, removal of derelict structures, placement of cultch, minor repairs to seawalls, catch basin cleaning, repair/replacement of backflow prevention structures, coastal restoration activities, temporary construction access, and repairs to DEEP boat launches. Shore Design understand the nuances of this General Permit and can help determine if your project is eligible.

review the deep general permit for coastal maintenance

Certificate of Permission (COP)

General Permit for Coastal Maintenance

General Permit for Coastal Maintenance

The DEEP allows repairs & modifications to seawalls & docks with a Certificate of Permission or COP.

The DEEP Certificate of Permission (aka COP) is a type of coastal permit issued to modify and/or repair existing structures. Eligible structures include those that are grandfathered (pre-1939 or pre-1987 and above the mean high water line), previously permitted, or have existing since since at least 1995. Typical COP eligible activities include legalizing pre-1995 structures, replacing bulkheads and seawalls, driving steel sheets 18 inches in front of bulkheads and seawalls, adding up to 12 inches of height to bulkheads and seawalls, redesigning and reconstructing docks, and replacing coastal groins.

Learn More about a cop directly from deep

ct deep coastal permits for new structures

General Permit for Minor Coastal Structures

Structures, Dredging & Fill (no impacts to tidal wetlands)

Structures, Dredging & Fill (no impacts to tidal wetlands)

Shore Design provides coastal design and coastal permitting for small docks, stairways, & moorings.

The DEEP General Permit for Minor Coastal Structures is a set of regulations intended to streamline and expedite approval of specific minor new coastal structures. These coastal structures include construction of small residential docks (aka 4/40 dock), residential beach access stairs, boat moorings (in towns with no harbormaster), osprey platforms, buoys or navigational markers, swim floats, pump-out facilities, and scientific monitoring devices. Shore Design understand the nuances of this General Permit and can help determine if your project is eligible.

review the deep general permit for minor coastal structures

Structures, Dredging & Fill (no impacts to tidal wetlands)

Structures, Dredging & Fill (no impacts to tidal wetlands)

Structures, Dredging & Fill (no impacts to tidal wetlands)

Shore Design provides dock design, dock permit, DEEP coastal permit, and Army Corps permit services.

The DEEP Structures, Dredging & Fill permit (aka full or individual permit) is for new activities and structures that would not impact tidal wetland vegetation and are not eligible for a General Permit for Minor Coastal Structures or a Certificate of Permission (aka COP). Typical activities and structures covered by this coastal permit include new residential docks, new commercial docks, and new public docks; new bulkheads, new seawalls, and new dredging. 

Learn More about individual permits directly from deep

Structures, Dredging & Fill and Tidal Wetlands

Structures, Dredging & Fill (no impacts to tidal wetlands)

Structures, Dredging & Fill and Tidal Wetlands

Shore Design provides dock design, dock permit, DEEP coastal permit, and Army Corps permit services.

The DEEP Structures, Dredging & Fill and Tidal Wetlands permit is for new activities and structures that may/would impact tidal wetland vegetation and are not eligible for a General Permit for Minor Coastal Structures or a Certificate of Permission (aka COP). Typical activities and structures covered by this coastal permit include new residential docks, new commercial docks, and new public docks; new bulkheads, new seawalls, and new dredging. 

Learn More about individual permits directly from deep

town coastal dock permits (partial list)

GUILFORD, CT

GUILFORD, CT

GUILFORD, CT

Coastal docks in Guilford, CT require Coastal Site Plan approval for landings of a certain size.

The Town of Guilford, CT requires Coastal Site Plan approval (a type of zoning permit) for docks with landings equal to or greater than 36 square feet landward of the Coastal Jurisdiction Line (aka CJL), which is a specific ground elevation above sea level. Each coastal city/town in Connecticut has it's own CJL elevation. An application is typically filed after obtaining DEEP and USACE coastal permits. However, the current Guilford Zoning Regulations should be reviewed prior to starting a project. Shore Design specializes in providing professional design and permitting services for coastal docks in Guilford.

Learn More Directly from Guilford

ESSEX, CT

GUILFORD, CT

GUILFORD, CT

Coastal docks in Essex, CT require Special Exception approval, which is a type of zoning permit.

The Town of Essex, CT requires Special Exception approval (a type of zoning permit) for coastal docks. An application is typically filed after obtaining DEEP and USACE coastal permits. However, the current Essex Zoning Regulations should be reviewed prior to starting a project. Shore Design specializes in providing professional design and permitting services for coastal docks in Essex.

Learn More Directly from Essex

LYME, CT

MILFORD, CT

MILFORD, CT

Coastal docks in Lyme, CT require Special Permit approval, which is a type of zoning permit.

The Town of Lyme, CT requires Special Permit approval (a type of zoning permit) for coastal docks. The granting of a Special Permit is based on compliance with the Town's Guidelines for Tidal Areas, which are divided into two zones within the Town's coastal area. Because the guidelines are more restrictive than DEEP and USACE allowances, it is highly recommended that the current Lyme Zoning Regulations be reviewed prior to starting a project. Shore Design specializes in providing professional design and permitting services for coastal docks in Lyme.

Learn more directly from lyme

MILFORD, CT

MILFORD, CT

MILFORD, CT

The City of Milford, CT requires Special Permit approval, a Zoning Permit, and sometimes a Building Permit for coastal docks. The local permitting process is typically started after obtaining DEEP and USACE coastal permits. However, the current Milford Zoning Regulations should be reviewed prior to starting a project. Shore Design specializes in providing professional design and permitting services for coastal docks in Milford.

Learn more directly from Milford
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