Miami-Dade County · Waterfront
Docks, Seawalls & Dredging in Key Biscayne, FL
Key Biscayne sits on Biscayne Bay / Atlantic Ocean, Bear Cut and Hurricane Harbor and Pines Canal, with waterfront homes in Mashta Island and Village of Key Biscayne. Langley Coastal builds and repairs docks and pilings, installs boat and PWC lifts, repairs seawalls and performs dredging for property owners in Key Biscayne. Permitting is handled in full.
5.0 from 73 Google reviews · Licensed CGC1538377 · 35+ Years Licensed · Family-Owned, Two Generations

Services in Key Biscayne
Every service below has its own page. Five of them have one written for Key Biscayne.

Dock Construction
New docks, complete tear-outs and rebuilds, and worn deck boards replaced.
Explore dock construction in Key Biscayne
Piling Services
Pilings restored where they can be, replaced where they cannot, under a dock, a lift or a boathouse.
Explore piling services in Key Biscayne
Seawall Construction
Aging walls removed and replaced, designed with licensed engineers.
Explore seawall construction in Key Biscayne
Seawall Repair
Inspection with photo and video, then hydraulic cement, forms and rebar, or foam injection.
Explore seawall repair in Key Biscayne
Boat Lift Installation
Fitted on a new dock or one you already have, working with the lift manufacturers.
Explore boat lift installation in Key Biscayne
Boat Lift Maintenance
Cables, drives and lift pilings kept working in salt water.
Explore lift maintenance in Key BiscayneDredging
Depth restored at docks, canals and shorelines. We handle the permitting.
Explore dredging in Key BiscayneGeneral Construction
The land side of a waterfront property: building, demolition, sitework and pools.
Explore general construction in Key BiscayneKey Biscayne's waterfront
What shapes dock, seawall, and dredging work here. Sources are linked.
Waterways
- Biscayne Bay / Atlantic Ocean: bay on the west, ocean on the east [keybiscayne.fl.gov]
- Bear Cut: channel between Virginia Key and Key Biscayne, north of the village at Crandon Park [en.wikipedia.org]
- Hurricane Harbor and Pines Canal: village canals designated Idle Speed / No Wake under county Code sec. 7-26 (MPP p. [miamidade.gov]
Waterfront neighborhoods
- Mashta Island: waterfront area with private docks in 33149, next to Hurricane Harbor (neighborhood-data sources) [miamidade.gov]
- Village of Key Biscayne: about 1.25 sq mi, no official neighborhood list [keybiscayne.fl.gov]
Marinas, bridges and inlets
- Key Biscayne Yacht Club: 180 Harbor Dr; private club founded 1955, about 100 slips for boats to about 60 ft [waterwayguide.com]
- Crandon Park Marina: county marina at 4000 Crandon Blvd, slips to 80 ft, 212-trailer ramp; just north of the village [miamidade.gov]
- No Name Harbor: Bill Baggs Cape Florida State Park anchorage, $20/boat/night, free pump-out [floridastateparks.org]
Permits and rules in Key Biscayne
Rules change; confirm current Key Biscayne requirements with the authority before work starts.
Miami-Dade County permit authorities that cover Key Biscayne →
- Seawall rule (Village of Key Biscayne Building, Zoning & Planning (proposal only); Miami-Dade DERM Class I; county Flood Criteria)
- No adopted village seawall height standard was found. In 2023 the village administration proposed an ordinance requiring a uniform 6.5-ft seawall for bayfront properties, to be in place by 2035 or sooner on renovation or seawall repair, with a design allowance for 2 more feet; three council members opposed it in June 2023 and adoption was not verified. [kbindependent.org]
- Dock and boat-lift permits
- Village of Key Biscayne Building, Zoning & Planning (permit clerks 305-365-5512) + Miami-Dade DERM Class I + FDEP / USACE. The village permitting page lists Miami-Dade DERM among the county approvals for permits. [keybiscayne.fl.gov]
Local conditions that matter
Tides, storms and siltation
- Manatees gather in the shallow seagrass beds west of Virginia Key (MPP p.31) [miamidade.gov]
- The village is in Evacuation Zone A and voters approved a $100 million resilience bond in November 2020 [en.wikipedia.org]
On the water
- FAC 68C-22.025 'Key Biscayne Area': year-round slow speed within 1,000 ft of Virginia Key's southwest shoreline and in Bear Cut between the bridge centerline and a line 1,000 ft southwest of it [law.cornell.edu]
- Hurricane Harbor and Pines Canal are Idle Speed / No Wake; Crandon Park (ocean side) and the Rickenbacker Causeway have motorboat/PWC exclusion zones under county Code sec. 7-26 (MPP p. [miamidade.gov]
- The Bear Cut Bridge is the village's only mainland link and a designated evacuation route; a county PD&E study of rehabilitation or replacement runs October 2024 to March 2027 with design afterward [miamidade.gov]
- The county manatee plan says Crandon Marina expansion could be considered because of its direct ocean access, but rates west Key Biscayne from Crandon Marina to the south shore of Pines Canal as not suitable for new marina slips (MPP pp. [miamidade.gov]
Recent Dock Work



Key Biscayne — frequently asked questions
What seawall height rule applies in Key Biscayne?
No adopted village seawall height standard was found. (Village of Key Biscayne Building, Zoning & Planning (proposal only); Miami-Dade DERM Class I; county Flood Criteria). An inspection of your Key Biscayne seawall, with underwater photos and video, shows whether a repair or a rebuild is the right route. [source]
Who permits a new dock or boat lift in Key Biscayne?
Village of Key Biscayne Building, Zoning & Planning (permit clerks 305-365-5512) + Miami-Dade DERM Class I + FDEP / USACE. The village permitting page lists Miami-Dade DERM among the county approvals for permits. [source]
Which Key Biscayne neighborhoods do you serve?
Waterfront neighborhoods across Key Biscayne, including Mashta Island and Village of Key Biscayne (ZIP 33149). Key Biscayne is in Miami-Dade County, one of the four counties Langley Coastal serves.
Are there speed or manatee zones near Key Biscayne docks?
FAC 68C-22.025 'Key Biscayne Area': year-round slow speed within 1,000 ft of Virginia Key's southwest shoreline and in Bear Cut between the bridge centerline and a line 1,000 ft southwest of it That sets how a dredge or barge is scheduled and staged in Key Biscayne. [source]
Does Langley Coastal Construction work in Key Biscayne?
Yes. Key Biscayne is in Miami-Dade County, one of the four counties Langley Coastal Construction serves; call (954) 406-0696 to schedule Key Biscayne work.
Sources for the Key Biscayne facts above are linked inline (18 public pages); they describe Key Biscayne, not Langley projects, and rules change, so confirm with the permitting authority.
Nearby Waterfront Areas We Serve
What Key Biscayne area customers say
phenomenal company, great people to work with. Everything down to the tiny details was played out right by this company. From customer service to the craftsmanship. If you are looking for a company that is backed by an expert team along with great people you found the right company . 100 out of 100 experience.

