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Signature Premier Properties, 95 W Main St, Sayville, NY 11782 Office: (631) 567-0100

For Sale

19 Mallard Drive Lloyd Harbor, NY 11743

$3,495,000

Listed March 23, 2026, 153 days ago

Listing courtesy of Anthony LaBella, EXP Realty MLS #KEY986062

  • 6Bedrooms
  • 7.5Bathrooms
  • 10,500Square feet
  • $333Per square foot
  • 1988Year built

About this home

Swan’s Cove: a Lloyd Neck Gold Coast waterfront estate where the setting is finished and the next chapter is yours to design. Some properties simply can’t be recreated. Swan’s Cove sits at the end of a private road on acreage that Lloyd Neck’s storied Gold Coast rarely offers, with Long Island Sound and Oyster Bay stretching across the horizon, from silver morning mist to gold-lit sails to a full western sunset. The land, the views, the privacy and the Cold Spring Harbor School District are already in place. So is the scale: an expansive, multi-level Colonial with a footprint most new construction can’t match, soaring beamed and cathedral ceilings, an elevator, fireplaces, a finished lower level, a main-level primary suite, en-suite bedrooms throughout and a fully separate guest wing. There is a chef’s kitchen with Sub-Zero, Wolf and Miele appliances, an indoor spa complex with pool, sauna and gym, a private tearoom, a home theater built for a proper premiere night, generous multi-level decking made for sunsets over the water, and a three-car garage. Now imagine it redesigned. Open the main level to the water with walls of glass. Create a modern kitchen and great room, spa-style baths, and new mechanicals and finishes throughout. Add a new facade, landscape design and outdoor living space worthy of the view. Waterfront estates at this scale, on this much land in this school district, rarely come to market, and the ones that do almost never offer this much room to shape them. A thoughtful renovation turns an inherited layout into a true signature residence and creates value you design yourself, instead of paying a premium for someone else’s finish. Beyond the property line, ownership comes with membership in a rare community: Lloyd Harbor’s private beach and park, with tennis, summer camp, a boat ramp and mooring rights all within reach. Swan’s Cove is for the buyer who sees a legacy property where others see a project. Bring your architect, bring your builder, bring your vision, and call today to walk the property and see what it could become.

Description supplied by the listing broker.

Features

  • First Floor Bedroom
  • First Floor Full Bath
  • Beamed Ceilings
  • Built-in Features
  • Cathedral Ceiling(s)
  • Chefs Kitchen
  • Elevator
  • Entrance Foyer
  • Formal Dining
  • High Ceilings
  • Kitchen Island
  • Pantry
  • Primary Bathroom
  • Master Downstairs

Property details

Interior

Attic
Partially Finished
Flooring
Hardwood
Fireplace
Yes
Fireplaces
3
Appliances
Cooktop, Dishwasher, Oven, Range, Refrigerator, Stainless Steel Appliance(s)

Systems and utilities

Heating
Forced Air, Oil
Cooling
Central Air
Utilities
Water Available
Water
Public

Exterior and lot

Construction
Advanced Framing Technique, Aluminum Siding, Shake Siding
Architectural style
Colonial
Parking
Garage
Private pool
Yes
Pool
Indoor
Spa
Yes
Waterfront
Lake Front

Community and fees

Association fee includes
Common Area Maintenance, Snow Removal

Tax and legal

Parcel number
0403-006-00-02-00-016-002
Listing agreement
Exclusive Right To Sell

Property details supplied by the listing broker through OneKey MLS, as of October 29, 2026. Fields not shown were not supplied and should not be read as absent from the property.

This listing

  1. October 12, 2026 Reduced to $3,495,000 from $3,999,000

Location

19 Mallard Drive, Lloyd Harbor, NY 11743

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