Welcome to 3 Martingale Gate, a luxurious and completely reimagined estate nestled on a quiet cul-de-sac in the heart of Nissequogue. Set on two private, level acres, this stunning brick-fronted residence blends timeless design with modern luxury in one of Long Island’s most desirable communities. Just moments from Nissequogue Golf Club, Smithtown Yacht Club, and the North Shore’s beautiful beaches, this home offers a lifestyle defined by privacy, recreation, and coastal elegance.
The first floor welcomes you with wide plank hardwood floors, vaulted ceilings, custom millwork, and designer lighting. An open, flowing floor plan connects the formal living and dining rooms to a spacious family room and a gourmet chef’s kitchen. The kitchen features a Thermador gas range with indoor grill, KitchenAid double wall ovens, oversized refrigerator, beverage fridge, quartz countertops, double pantry, ceiling-height cabinetry, and custom finishes. Additional highlights include a home office with access to a covered portico, a guest powder room, full laundry room, and a private guest suite with en-suite bath.
Upstairs, the expansive primary suite includes two walk-in closets and a spa-style bathroom with heated floors. Three additional bedrooms and two updated full bathrooms complete the second level.
The fully finished lower level offers flexible space including a sixth bedroom with en-suite bath, an additional office or bonus room, a gym, a custom wet bar, and a large recreation area ideal for media, gaming, or a golf simulator. Full-size windows, walk-out access, and a French drain system provide natural light and convenience.
Outdoors, enjoy your own resort-style retreat with a heated saltwater pool, separate jacuzzi, outdoor kitchen with built-in grill, sink, beverage fridge, cabana, outdoor TV, and a Tuscan-inspired bluestone patio—all set within professionally landscaped grounds.
Additional features include a three-car garage with new openers, full walk-up attic, new multi-zone central air units, high-capacity hot water heater, whole-house 2x6 framing, a Generac generator, and a full-home water filtration system for enhanced quality and peace of mind.
Located near Long Island Sound, scenic beaches, yacht and golf clubs, and nearby marinas, 3 Martingale Gate offers a rare opportunity to enjoy luxury living in a serene coastal setting with access to world-class recreation and natural beauty.
For sale
$2,900,000
3 Martingale Gate, Nissequogue, NY 11780
5beds
4,428sqft
Single Family Residence
Built in 1999
2.1 Acres Lot
$-- Zestimate®
$655/sqft
$150/mo HOA
What's special
Outdoor kitchenFully finished lower levelHeated saltwater poolHome officeExpansive primary suiteTwo private level acresProfessionally landscaped grounds
- 5 days
- on Zillow |
- 1,128 |
- 90 |
Zillow last checked: 7 hours ago
Listing updated: April 22, 2025 at 07:24am
Listing by:
The Agency Northshore NY 631-870-0753,
Kyle Roskot 631-521-1844
Source: OneKey® MLS,MLS#: 847854

Travel times
Tour with a buyer’s agent
Tour with a buyer’s agent
Facts & features
Interior
Bedrooms & bathrooms
- Bedrooms: 5
- Bathrooms: 6
- Full bathrooms: 5
- 1/2 bathrooms: 1
Other
- Description: First floor features a formal living room, sitting room, office, spacious den, gourmet kitchen, dining room, half bath, and a private guest suite with en-suite bath.
- Level: First
Other
- Description: Second floor features a spacious primary suite with en-suite bath, three additional bedrooms, and two full bathrooms.
- Level: Second
Other
- Description: Fully finished basement includes a custom bar, gym, office, and multiple bonus rooms for flexible living or entertainment.
- Level: Basement
Heating
- Hot Water, Oil
Cooling
- Central Air
Appliances
- Included: Dishwasher, Gas Range
- Laundry: Laundry Room
Features
- Chandelier, Chefs Kitchen, Eat-in Kitchen
- Basement: Finished,Full,Walk-Out Access
- Attic: Full
- Number of fireplaces: 1
Interior area
- Total structure area: 4,428
- Total interior livable area: 4,428 sqft
Property
Parking
- Total spaces: 3
- Parking features: Garage
- Garage spaces: 3
Features
- Has private pool: Yes
- Has spa: Yes
Lot
- Size: 2.1 Acres
Details
- Parcel number: 0802003000200037003
- Special conditions: None
Construction
Type & style
- Home type: SingleFamily
- Architectural style: Colonial
- Property subtype: Single Family Residence
Materials
- Frame
Condition
- Year built: 1999
Utilities & green energy
- Sewer: Cesspool
- Water: Public
- Utilities for property: Propane
Community & HOA
Community
- Security: Security System, Video Cameras
HOA
- Has HOA: Yes
- HOA fee: $150 monthly
Location
- Region: Saint James
Financial & listing details
- Price per square foot: $655/sqft
- Tax assessed value: $1,805,814
- Annual tax amount: $33,097
- Date on market: 4/21/2025
- Listing agreement: Exclusive Right To Sell
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