Dock, pier and float rules in Gloucester, Massachusetts
A private dock, pier or float needs a special permit from the Zoning Board of Appeals in every Gloucester zoning district, plus a Conservation Commission Notice of Intent (Category 5, $4 per linear foot, capped at $200 for a single-family home). State Chapter 91 and federal permits also apply, and the city's waterways board reviews waterfront projects.
| Zoning approval | Special permit (SP) from Zoning Board of Appeals in all districts [1] |
| SP means | Special Permit issued by the Zoning Board of Appeals [2] |
| Conservation Commission filing | Notice of Intent, Category 5 [3] |
| NOI fee (single-family/duplex) | $4 per linear foot, max $200 [3] |
| Waterways board review | Reviews all waterfront development projects [5] |
| Moorings | Harbormaster permit, renewed yearly [6] |
Zoning
The use table (Sec. 2.3.3, Open Uses) lists "boat launching, docking or docking structures" with "SP" in every district [1], meaning a special permit from the Zoning Board of Appeals [2]. In the Marine Industrial district, docking is limited to commercial fishing vessels. Zoning measures the water's edge setback to the outer edge of a pier or dock that extends past mean high tide [4], so a dock can change how setbacks are measured on your lot.
Conservation Commission
Docks and piers on the coast or a river are Category 5 work under the Wetlands Ordinance's Notice of Intent fee schedule: $4.00 per linear foot, capped at $200 for a single-family home or duplex [3]. The Commission reviews the dock under both the city ordinance and the state Wetlands Protection Act, and the more protective standard controls.
Waterways board and harbormaster
The waterways board reviews all waterfront development projects and reports to the mayor, City Council or the relevant board, and can require plans [5]. It also acts as the city's liaison to the Army Corps of Engineers, MassDEP and Coastal Zone Management. If you want a mooring rather than a dock, you need a harbormaster permit, renewed every calendar year, and there are waiting lists by location [6].
State and federal permits
The city chapter defers to federal navigation law and state law and agencies [7]. In tidal waters that means a MassDEP Chapter 91 license and, usually, an Army Corps permit (see the state rules on this page).
Repair and maintenance of existing pile-supported structures with a building permit is exempt from the city wetlands permit [8], though state rules may still apply.
Size and season
The city sources we reviewed don't set dock length, width or seasonal-float rules; those come from the ZBA's conditions and the state Chapter 91 standards.
See how Gloucester compares with 8+ other Massachusetts towns on docks, piers & floats →
Next steps
- Meet with the Conservation Agent and the Harbormaster early to review the dock location.
- File a Notice of Intent with the Conservation Commission (Category 5 fee: $4 per linear foot, max $200 for a single-family home).
- Apply to the Zoning Board of Appeals for a special permit for a docking structure.
- Apply to MassDEP for a Chapter 91 license (or General License certification) and to the Army Corps of Engineers as needed.
Common questions
- Do I need a permit to build a dock in Gloucester, Massachusetts?
- Yes. A private dock, pier or float needs a special permit from the Zoning Board of Appeals in every zoning district, plus a Conservation Commission Notice of Intent. State Chapter 91 and federal permits also apply, and the city's waterways board reviews waterfront projects.
- How much is the Conservation Commission fee for a dock in Gloucester, Massachusetts?
- Docks and piers are Category 5 work under the Wetlands Ordinance: $4 per linear foot, capped at $200 for a single-family home or duplex.
- Are there dock size or seasonal float rules in Gloucester, Massachusetts?
- Not in the city sources reviewed. Dock length, width and seasonal-float rules come from the Zoning Board of Appeals' conditions and the state Chapter 91 standards.
- Do I need a permit for a mooring in Gloucester, Massachusetts?
- Yes. A mooring needs a harbormaster permit, renewed every calendar year, and there are waiting lists by location.
Massachusetts state rules for docks and piers
A private dock in Massachusetts usually needs several layers of approval beyond local zoning.
Chapter 91 waterways license (MassDEP): any structure, regardless of size, permanent or seasonal, in tidal waters, in a great pond (a pond over 10 acres in its natural state), or in certain navigable rivers needs Chapter 91 authorization (M.G.L. c. 91; 310 CMR 9.00). For small residential docks there are simpler routes:
- a General License certification for pile-supported residential docks, piers, ramps and floats with no fill or dredging, outside ACECs and Designated Port Areas (310 CMR 9.29)
- a Simplified License for residential docks up to 600 sq ft below the high-water line (310 CMR 9.10)
Licenses must be recorded at the Registry of Deeds, and Chapter 91 protects public rights to fish, fowl and navigate.
Conservation Commission: dock work in or near wetlands, banks or land under water needs an Order of Conditions under the Wetlands Protection Act (c. 131, §40).
Harbormaster: bottom-anchored moorings, floats and rafts (no pilings) can be authorized by an annual permit from the local harbormaster instead of a Chapter 91 license (c. 91, §10A). Mooring fees can't discriminate based on residence.
U.S. Army Corps of Engineers: work in navigable waters may also need federal approval. Small private piers and floats are often covered by the Corps' Massachusetts General Permits, which can involve self-verification or pre-construction notification.
What the bylaw says
- Sec. 2.3.3 Open Uses, line 12, Zoning Ordinance Section II - Use Regulations (Municode, Supp. No. 8, codified through Ord. No. 2025-233, adopted Sept 12, 2025)
12 Boat launching, docking or docking structures 5 SP SP
- Sec. 2.3, key to use table, Zoning Ordinance Section II - Use Regulations (Municode, Supp. No. 8, codified through Ord. No. 2025-233, adopted Sept 12, 2025)
A use which may be authorized by Special Permit issued by the Zoning Board of Appeals
- Sec. 12-16(e) Fee Structure, Notice of Intent - Category 5, Code of Ordinances Chapter 12 - Marshlands (Art. II Wetlands, Secs. 12-10 to 12-28)
Docks, piers, dikes or new retaining walls located on the coast or river. $4.00 per linear foot Not to exceed $200.00 for SFH/duplex and $2,000.00 for other
- Section VI - Definitions, Water's Edge, Zoning Ordinance Section VI - Definitions
The point where land, seawall or bulkhead meets the mean high tide line, or if a pier or dock extends beyond the mean high tide line, the edge of that pier or dock next to the water.
- Sec. 10-3(7), Code of Ordinances Chapter 10 - Waterways Administration (moorings, public landings, harbormaster, piers)
Review all waterfront development projects or zoning changes and report its findings and recommendations to the mayor, city council or other relevant board.
- Sec. 10-51(b), Code of Ordinances Chapter 10 - Waterways Administration (moorings, public landings, harbormaster, piers)
No person shall establish a mooring within the city waterways without first obtaining a permit from the harbormaster to do so. Mooring permits shall be renewable each calendar year.
- Sec. 10-80, Code of Ordinances Chapter 10 - Waterways Administration (moorings, public landings, harbormaster, piers)
Nothing contained in this chapter shall be construed to conflict with the jurisdiction of the federal government with respect to enforcement of the navigation, shipping, anchorage, and associated laws of the United States, or any lawful regulation or law of the commonwealth and its agencies.
- Sec. 12-13(6), Code of Ordinances Chapter 12 - Marshlands (Art. II Wetlands, Secs. 12-10 to 12-28)
Repair and maintenance of pile-supported structures, with a proper building permit issued by the building inspector, shall not require the application and permit required by this article.